DataGridBoolColumn Class

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Specifies a column in which each cell contains a check box for representing a Boolean value.

public ref class DataGridBoolColumn : System::Windows::Forms::DataGridColumnStyle

public class DataGridBoolColumn : System.Windows.Forms.DataGridColumnStyle

type DataGridBoolColumn = class
    inherit DataGridColumnStyle

Public Class DataGridBoolColumn
Inherits DataGridColumnStyle

Inheritance

Object

MarshalByRefObject

Component

DataGridColumnStyle

DataGridBoolColumn

Examples

The following code example first creates a new DataGridBoolColumn and adds it to the GridColumnStylesCollection of a DataGridTableStyle.

using namespace System;
using namespace System::Data;
using namespace System::Windows::Forms;
using namespace System::Drawing;
using namespace System::ComponentModel;

public ref class DataGridBoolColumnInherit: public DataGridBoolColumn
{
private:
   SolidBrush^ trueBrush;
   SolidBrush^ falseBrush;
   DataColumn^ expressionColumn;
   static int count = 0;

public:
   DataGridBoolColumnInherit()
      : DataGridBoolColumn()
   {
      trueBrush = dynamic_cast<SolidBrush^>(Brushes::Blue);
      falseBrush = dynamic_cast<SolidBrush^>(Brushes::Yellow);
      expressionColumn = nullptr;
      count++;
   }

   property Color FalseColor 
   {
      Color get()
      {
         return falseBrush->Color;
      }

      void set( Color value )
      {
         falseBrush = gcnew System::Drawing::SolidBrush( value );
         Invalidate();
      }
   }

   property Color TrueColor 
   {
      Color get()
      {
         return trueBrush->Color;
      }

      void set( Color value )
      {
         trueBrush = gcnew System::Drawing::SolidBrush( value );
         Invalidate();
      }
   }

   property String^ Expression 
   {
      // This will work only with a DataSet or DataTable.
      // The code is not compatible with IBindingList* implementations.
      String^ get()
      {
         return this->expressionColumn == nullptr ? String::Empty : this->expressionColumn->Expression;
      }

      void set( String^ value )
      {
         if ( expressionColumn == nullptr )
                  AddExpressionColumn( value );
         else
                  expressionColumn->Expression = value;

         if ( expressionColumn != nullptr && expressionColumn->Expression->Equals( value ) )
                  return;

         Invalidate();
      }
   }

private:
   void AddExpressionColumn( String^ value )
   {
      // Get the grid's data source. First check for a 0 
      // table or data grid.
      if ( this->DataGridTableStyle == nullptr || this->DataGridTableStyle->DataGrid == nullptr )
            return;

      DataGrid^ myGrid = this->DataGridTableStyle->DataGrid;
      DataView^ myDataView = dynamic_cast<DataView^>((dynamic_cast<CurrencyManager^>(myGrid->BindingContext[ myGrid->DataSource,myGrid->DataMember ]))->List);

      // This works only with System::Data::DataTable.
      if ( myDataView == nullptr )
            return;

      // If the user already added a column with the name 
      // then exit. Otherwise, add the column and set the 
      // expression to the value passed to this function.
      DataColumn^ col = myDataView->Table->Columns[ "__Computed__Column__" ];
      if ( col != nullptr )
            return;

      col = gcnew DataColumn( String::Concat( "__Computed__Column__", count ) );
      myDataView->Table->Columns->Add( col );
      col->Expression = value;
      expressionColumn = col;
   }

   //  the OnPaint method to paint the cell based on the expression.
protected:
   virtual void Paint( Graphics^ g, Rectangle bounds, CurrencyManager^ source, int rowNum, Brush^ backBrush, Brush^ foreBrush, bool alignToRight ) override
   {
      bool trueExpression = false;
      bool hasExpression = false;
      DataRowView^ drv = dynamic_cast<DataRowView^>(source->List[ rowNum ]);
      hasExpression = this->expressionColumn != nullptr && this->expressionColumn->Expression != nullptr &&  !this->expressionColumn->Expression->Equals( String::Empty );
      Console::WriteLine( String::Format( "hasExpressionValue {0}", hasExpression ) );

      // Get the value from the expression column.
      // For simplicity, we assume a True/False value for the 
      // expression column.
      if ( hasExpression )
      {
         Object^ expr = drv->Row[ expressionColumn->ColumnName ];
         trueExpression = expr->Equals( "True" );
      }

      // Let the DataGridBoolColumn do the painting.
      if (  !hasExpression )
            DataGridBoolColumn::Paint( g, bounds, source, rowNum, backBrush, foreBrush, alignToRight );

      // Paint using the expression color for true or false, as calculated.
      if ( trueExpression )
            DataGridBoolColumn::Paint( g, bounds, source, rowNum, trueBrush, foreBrush, alignToRight );
      else
            DataGridBoolColumn::Paint( g, bounds, source, rowNum, falseBrush, foreBrush, alignToRight );
   }
};

public ref class MyForm: public Form
{
private:
   DataTable^ myTable;
   DataGrid^ myGrid;

public:
   MyForm()
   {
      myGrid = gcnew DataGrid;
      try
      {
         InitializeComponent();
         myTable = gcnew DataTable( "NamesTable" );
         myTable->Columns->Add( gcnew DataColumn( "Name" ) );
         DataColumn^ column = gcnew DataColumn( "id",Int32::typeid );
         myTable->Columns->Add( column );
         myTable->Columns->Add( gcnew DataColumn( "calculatedField",bool::typeid ) );
         DataSet^ namesDataSet = gcnew DataSet;
         namesDataSet->Tables->Add( myTable );
         myGrid->SetDataBinding( namesDataSet, "NamesTable" );
         AddTableStyle();
         AddData();
      }
      catch ( System::Exception^ exc ) 
      {
         Console::WriteLine( exc );
      }
   }

private:
   void grid_Enter( Object^ sender, EventArgs^ e )
   {
      myGrid->CurrentCell = DataGridCell(2,2);
   }

   void AddTableStyle()
   {
      // Map a new  TableStyle to the DataTable. Then 
      // add DataGridColumnStyle objects to the collection
      // of column styles with appropriate mappings.
      DataGridTableStyle^ dgt = gcnew DataGridTableStyle;
      dgt->MappingName = "NamesTable";
      DataGridTextBoxColumn^ dgtbc = gcnew DataGridTextBoxColumn;
      dgtbc->MappingName = "Name";
      dgtbc->HeaderText = "Name";
      dgt->GridColumnStyles->Add( dgtbc );
      dgtbc = gcnew DataGridTextBoxColumn;
      dgtbc->MappingName = "id";
      dgtbc->HeaderText = "id";
      dgt->GridColumnStyles->Add( dgtbc );
      DataGridBoolColumnInherit^ db = gcnew DataGridBoolColumnInherit;
      db->HeaderText = "less than 1000 = blue";
      db->Width = 150;
      db->MappingName = "calculatedField";
      dgt->GridColumnStyles->Add( db );
      myGrid->TableStyles->Add( dgt );

      // This expression instructs the grid to change
      // the color of the inherited DataGridBoolColumn
      // according to the value of the id field. If it's
      // less than 1000, the row is blue. Otherwise,
      // the color is yellow.
      db->Expression = "id < 1000";
   }

   void AddData()
   {
      // Add data with varying numbers for the id field.
      // If the number is over 1000, the cell will paint
      // yellow. Otherwise, it will be blue.
      DataRow^ dRow = myTable->NewRow();
      dRow[ "Name" ] = "name 1 ";
      dRow[ "id" ] = 999;
      myTable->Rows->Add( dRow );
      dRow = myTable->NewRow();
      dRow[ "Name" ] = "name 2";
      dRow[ "id" ] = 2300;
      myTable->Rows->Add( dRow );
      dRow = myTable->NewRow();
      dRow[ "Name" ] = "name 3";
      dRow[ "id" ] = 120;
      myTable->Rows->Add( dRow );
      dRow = myTable->NewRow();
      dRow[ "Name" ] = "name 4";
      dRow[ "id" ] = 4023;
      myTable->Rows->Add( dRow );
      dRow = myTable->NewRow();
      dRow[ "Name" ] = "name 5";
      dRow[ "id" ] = 2345;
      myTable->Rows->Add( dRow );
      myTable->AcceptChanges();
   }

   void InitializeComponent()
   {
      this->Size = System::Drawing::Size( 500, 500 );
      myGrid->Size = System::Drawing::Size( 350, 250 );
      myGrid->TabStop = true;
      myGrid->TabIndex = 1;
      this->StartPosition = FormStartPosition::CenterScreen;
      this->Controls->Add( myGrid );
   }
};

[STAThread]
int main()
{
   Application::Run( gcnew MyForm );
}

using System;
using System.Data;
using System.Windows.Forms;
using System.Drawing;
using System.ComponentModel;

public class MyForm : Form 
{
    private DataTable myTable;
    private DataGrid myGrid = new DataGrid();
    
    public MyForm() : base() 
    {
        try
        {
            InitializeComponent();

            myTable = new DataTable("NamesTable");
            myTable.Columns.Add(new DataColumn("Name"));
            DataColumn column = new DataColumn
                ("id", typeof(System.Int32));
            myTable.Columns.Add(column);
            myTable.Columns.Add(new 
                DataColumn("calculatedField", typeof(bool)));
            DataSet namesDataSet = new DataSet();
            namesDataSet.Tables.Add(myTable);
            myGrid.SetDataBinding(namesDataSet, "NamesTable");
        
            AddTableStyle();
            AddData();
        }
        catch (System.Exception exc)
        {
            Console.WriteLine(exc.ToString());
        }
    }

    private void grid_Enter(object sender, EventArgs e) 
    {
        myGrid.CurrentCell = new DataGridCell(2,2);
    }

    private void AddTableStyle()
    {
        // Map a new  TableStyle to the DataTable. Then 
        // add DataGridColumnStyle objects to the collection
        // of column styles with appropriate mappings.
        DataGridTableStyle dgt = new DataGridTableStyle();
        dgt.MappingName = "NamesTable";

        DataGridTextBoxColumn dgtbc = new DataGridTextBoxColumn();
        dgtbc.MappingName = "Name";
        dgtbc.HeaderText= "Name";
        dgt.GridColumnStyles.Add(dgtbc);

        dgtbc = new DataGridTextBoxColumn();
        dgtbc.MappingName = "id";
        dgtbc.HeaderText= "id";
        dgt.GridColumnStyles.Add(dgtbc);

        DataGridBoolColumnInherit db = 
            new DataGridBoolColumnInherit();
        db.HeaderText= "less than 1000 = blue";
        db.Width= 150;
        db.MappingName = "calculatedField";
        dgt.GridColumnStyles.Add(db);

        myGrid.TableStyles.Add(dgt);

        // This expression instructs the grid to change
        // the color of the inherited DataGridBoolColumn
        // according to the value of the id field. If it's
        // less than 1000, the row is blue. Otherwise,
        // the color is yellow.
        db.Expression = "id < 1000";
    }

    private void AddData() 
    {
        // Add data with varying numbers for the id field.
        // If the number is over 1000, the cell will paint
        // yellow. Otherwise, it will be blue.
        DataRow dRow = myTable.NewRow();

        dRow["Name"] = "name 1 ";
        dRow["id"] = 999;
        myTable.Rows.Add(dRow);

        dRow = myTable.NewRow();
        dRow["Name"] = "name 2";
        dRow["id"] = 2300;
        myTable.Rows.Add(dRow);

        dRow = myTable.NewRow();
        dRow["Name"] = "name 3";
        dRow["id"] = 120;
        myTable.Rows.Add(dRow);

        dRow = myTable.NewRow();
        dRow["Name"] = "name 4";
        dRow["id"] = 4023;
        myTable.Rows.Add(dRow);

        dRow = myTable.NewRow();
        dRow["Name"] = "name 5";
        dRow["id"] = 2345;
        myTable.Rows.Add(dRow);

        myTable.AcceptChanges();
    }

    private void InitializeComponent() 
    {
        this.Size = new Size(500, 500);
        myGrid.Size = new Size(350, 250);
        myGrid.TabStop = true;
        myGrid.TabIndex = 1;
      
        this.StartPosition = FormStartPosition.CenterScreen;
        this.Controls.Add(myGrid);
      }
    [STAThread]
    public static void Main() 
    {
        Application.Run(new MyForm());
    }
}

public class DataGridBoolColumnInherit : DataGridBoolColumn 
{
    private SolidBrush trueBrush = Brushes.Blue as SolidBrush;
    private SolidBrush falseBrush = Brushes.Yellow as SolidBrush;
    private DataColumn expressionColumn = null;
    private static int count = 0;

    public Color FalseColor 
    {
        get 
        {
            return falseBrush.Color;
        }
        set 
        {
            falseBrush = new SolidBrush(value);
            Invalidate();
        }
    }

    public Color TrueColor 
    {
        get 
        {
            return trueBrush.Color;
        }
        set 
        {
            trueBrush = new SolidBrush(value);
            Invalidate();
        }
    }

    public DataGridBoolColumnInherit() : base () 
    {
        count ++;
    }

    // This will work only with a DataSet or DataTable.
    // The code is not compatible with IBindingList implementations.
    public string Expression 
    {
        get 
        {
            return this.expressionColumn == null ? String.Empty : 
                this.expressionColumn.Expression;
        }
        set 
        {
            if (expressionColumn == null)
                AddExpressionColumn(value);
            else 
                expressionColumn.Expression = value;
            if (expressionColumn != null && 
                expressionColumn.Expression.Equals(value))
                return;
            Invalidate();
        }
    }

    private void AddExpressionColumn(string value) 
    {
        // Get the grid's data source. First check for a null 
        // table or data grid.
        if (this.DataGridTableStyle == null || 
            this.DataGridTableStyle.DataGrid == null)
            return;

        DataGrid myGrid = this.DataGridTableStyle.DataGrid;
        DataView myDataView = ((CurrencyManager) 
            myGrid.BindingContext[myGrid.DataSource, 
            myGrid.DataMember]).List 
            as DataView;

        // This works only with System.Data.DataTable.
        if (myDataView == null)
            return;

        // If the user already added a column with the name 
        // then exit. Otherwise, add the column and set the 
        // expression to the value passed to this function.
        DataColumn col = myDataView.Table.Columns["__Computed__Column__"];
        if (col != null)
            return;
        col = new DataColumn("__Computed__Column__" + count.ToString());

        myDataView.Table.Columns.Add(col);
        col.Expression = value;
        expressionColumn = col;
    }

    // override the OnPaint method to paint the cell based on the expression.
    protected override void Paint(Graphics g, Rectangle bounds,
        CurrencyManager source, int rowNum,
        Brush backBrush, Brush foreBrush,
        bool alignToRight) 
    {
        bool trueExpression = false;
        bool hasExpression = false;
        DataRowView drv = source.List[rowNum] as DataRowView;

        hasExpression = this.expressionColumn != null && 
            this.expressionColumn.Expression != null && 
            !this.expressionColumn.Expression.Equals(String.Empty);

        Console.WriteLine(string.Format("hasExpressionValue {0}",hasExpression));
        // Get the value from the expression column.
        // For simplicity, we assume a True/False value for the 
        // expression column.
        if (hasExpression) 
        {
            object expr = drv.Row[expressionColumn.ColumnName];
            trueExpression = expr.Equals("True");
        }

        // Let the DataGridBoolColumn do the painting.
        if (!hasExpression)
            base.Paint(g, bounds, source, rowNum, 
                backBrush, foreBrush, alignToRight);

        // Paint using the expression color for true or false, as calculated.
        if (trueExpression)
            base.Paint(g, bounds, source, rowNum, 
                trueBrush, foreBrush, alignToRight);
        else
            base.Paint(g, bounds, source, rowNum, 
                falseBrush, foreBrush, alignToRight);
    }
}

Imports System.Data
Imports System.Windows.Forms
Imports System.Drawing
Imports System.ComponentModel

Public Class MyForm
    Inherits System.Windows.Forms.Form
    Private components As System.ComponentModel.Container
    Private myTable As DataTable
    Private myGrid As DataGrid = New DataGrid()

    Public Shared Sub Main()
        Application.Run(New MyForm())
    End Sub

    Public Sub New()
        Try
            InitializeComponent()
            myTable = New DataTable("NamesTable")
            myTable.Columns.Add(New DataColumn("Name"))
            Dim column As DataColumn = New DataColumn _
            ("id", GetType(System.Int32))
            myTable.Columns.Add(column)
            myTable.Columns.Add(New DataColumn _
            ("calculatedField", GetType(Boolean)))
            Dim namesDataSet As DataSet = New DataSet("myDataSet")
            namesDataSet.Tables.Add(myTable)
            myGrid.SetDataBinding(namesDataSet, "NamesTable")
            AddData()
            AddTableStyle()

        Catch exc As System.Exception
            Console.WriteLine(exc.ToString)
        End Try
    End Sub

    Private Sub AddTableStyle()
        ' Map a new  TableStyle to the DataTable. Then 
        ' add DataGridColumnStyle objects to the collection
        ' of column styles with appropriate mappings.
        Dim dgt As DataGridTableStyle = New DataGridTableStyle()
        dgt.MappingName = "NamesTable"

        Dim dgtbc As DataGridTextBoxColumn = _
        New DataGridTextBoxColumn()
        dgtbc.MappingName = "Name"
        dgtbc.HeaderText = "Name"
        dgt.GridColumnStyles.Add(dgtbc)

        dgtbc = New DataGridTextBoxColumn()
        dgtbc.MappingName = "id"
        dgtbc.HeaderText = "id"
        dgt.GridColumnStyles.Add(dgtbc)

        Dim db As DataGridBoolColumnInherit = _
        New DataGridBoolColumnInherit()
        db.HeaderText = "less than 1000 = blue"
        db.Width = 150
        db.MappingName = "calculatedField"
        dgt.GridColumnStyles.Add(db)

        myGrid.TableStyles.Add(dgt)

        ' This expression instructs the grid to change
        ' the color of the inherited DataGridBoolColumn
        ' according to the value of the id field. If it's
        ' less than 1000, the row is blue. Otherwise,
        ' the color is yellow.
        db.Expression = "id < 1000"
    End Sub

    Private Sub AddData()

        ' Add data with varying numbers for the id field.
        ' If the number is over 1000, the cell will paint
        ' yellow. Otherwise, it will be blue.
        Dim dRow As DataRow

        dRow = myTable.NewRow()
        dRow("Name") = "name 1"
        dRow("id") = 999
        myTable.Rows.Add(dRow)

        dRow = myTable.NewRow()
        dRow("Name") = "name 2"
        dRow("id") = 2300
        myTable.Rows.Add(dRow)

        dRow = myTable.NewRow()
        dRow("Name") = "name 3"
        dRow("id") = 120
        myTable.Rows.Add(dRow)

        dRow = myTable.NewRow()
        dRow("Name") = "name 4"
        dRow("id") = 4023
        myTable.Rows.Add(dRow)

        dRow = myTable.NewRow()
        dRow("Name") = "name 5"
        dRow("id") = 2345
        myTable.Rows.Add(dRow)

        myTable.AcceptChanges()
    End Sub

    Private Sub InitializeComponent()
        Me.Size = New Size(500, 500)
        myGrid.Size = New Size(350, 250)
        myGrid.TabStop = True
        myGrid.TabIndex = 1
        Me.StartPosition = FormStartPosition.CenterScreen
        Me.Controls.Add(myGrid)
    End Sub

End Class


Public Class DataGridBoolColumnInherit
    Inherits DataGridBoolColumn

    Private trueBrush As SolidBrush = Brushes.Blue
    Private falseBrush As SolidBrush = Brushes.Yellow
    Private expressionColumn As DataColumn = Nothing
    Shared count As Int32 = 0

    Public Property FalseColor() As Color
        Get
            Return falseBrush.Color
        End Get

        Set(ByVal Value As Color)

            falseBrush = New SolidBrush(Value)
            Invalidate()
        End Set
    End Property

    Public Property TrueColor() As Color
        Get
            Return trueBrush.Color
        End Get

        Set(ByVal Value As Color)

            trueBrush = New SolidBrush(Value)
            Invalidate()
        End Set
    End Property

    Public Sub New()
        count += 1
    End Sub

    ' This will work only with a DataSet or DataTable.
    ' The code is not compatible with IBindingList implementations.
    Public Property Expression() As String
        Get
            If Me.expressionColumn Is Nothing Then
                Return String.Empty
            Else
                Return Me.expressionColumn.Expression
            End If
        End Get
        Set(ByVal Value As String)
            If expressionColumn Is Nothing Then
                AddExpressionColumn(Value)
            Else
                expressionColumn.Expression = Value
            End If
            If (expressionColumn IsNot Nothing) And expressionColumn.Expression.Equals(Value) Then
                Return
            End If
            Invalidate()
        End Set
    End Property

    Private Sub AddExpressionColumn(ByVal value As String)
        ' Get the grid's data source. First check for a null 
        ' table or data grid.
        If Me.DataGridTableStyle Is Nothing Or _
        Me.DataGridTableStyle.DataGrid Is Nothing Then
            Return
        End If

        Dim dg As DataGrid = Me.DataGridTableStyle.DataGrid
        Dim dv As DataView = CType(dg.BindingContext(dg.DataSource, dg.DataMember), CurrencyManager).List

        ' This works only with System.Data.DataTable.
        If dv Is Nothing Then
            Return
        End If

        ' If the user already added a column with the name 
        ' then exit. Otherwise, add the column and set the 
        ' expression to the value passed to this function.
        Dim col As DataColumn = dv.Table.Columns("__Computed__Column__")
        If (col IsNot Nothing) Then
            Return
        End If
        col = New DataColumn("__Computed__Column__" + count.ToString())

        dv.Table.Columns.Add(col)

        col.Expression = value
        expressionColumn = col
    End Sub


    ' Override the OnPaint method to paint the cell based on the expression.
    Protected Overloads Overrides Sub Paint _
    (ByVal g As Graphics, _
    ByVal bounds As Rectangle, _
    ByVal [source] As CurrencyManager, _
    ByVal rowNum As Integer, _
    ByVal backBrush As Brush, _
    ByVal foreBrush As Brush, _
    ByVal alignToRight As Boolean)
        Dim trueExpression As Boolean = False
        Dim hasExpression As Boolean = False
        Dim drv As DataRowView = [source].List(rowNum)
        hasExpression = (Me.expressionColumn IsNot Nothing) And (Me.expressionColumn.Expression IsNot Nothing) And Not Me.expressionColumn.Expression.Equals([String].Empty)

        ' Get the value from the expression column.
        ' For simplicity, we assume a True/False value for the 
        ' expression column.
        If hasExpression Then
            Dim expr As Object = drv.Row(expressionColumn.ColumnName)
            trueExpression = expr.Equals("True")
        End If

        ' Let the DataGridBoolColumn do the painting.
        If Not hasExpression Then
            MyBase.Paint(g, bounds, [source], rowNum, backBrush, foreBrush, alignToRight)
        End If

        ' Paint using the expression color for true or false, as calculated.
        If trueExpression Then
            MyBase.Paint(g, bounds, [source], rowNum, trueBrush, foreBrush, alignToRight)
        Else
            MyBase.Paint(g, bounds, [source], rowNum, falseBrush, foreBrush, alignToRight)
        End If
    End Sub
End Class

Remarks

The DataGridBoolColumn derives from the abstract class DataGridColumnStyle. At run time, the DataGridBoolColumn contains check boxes in each cell that have three states by default: checked (true), unchecked (false), and Value. To use two-state check boxes, set the AllowNull property to false.

Properties added to the class include FalseValue, NullValue, and TrueValue. These properties specify the value underlying each of the column's states.

Constructors

DataGridBoolColumn()	Initializes a new instance of the DataGridBoolColumn class.
DataGridBoolColumn(PropertyDescriptor, Boolean)	Initializes a new instance of the DataGridBoolColumn class with the specified PropertyDescriptor, and specifying whether the column style is a default column.
DataGridBoolColumn(PropertyDescriptor)	Initializes a new instance of the DataGridBoolColumn class with the specified PropertyDescriptor.

Properties

Alignment	Gets or sets the alignment of text in a column. (Inherited from DataGridColumnStyle)
AllowNull	Gets or sets a value indicating whether null values are allowed.
CanRaiseEvents	Gets a value indicating whether the component can raise an event. (Inherited from Component)
Container	Gets the IContainer that contains the Component. (Inherited from Component)
DataGridTableStyle	Gets the DataGridTableStyle for the column. (Inherited from DataGridColumnStyle)
DesignMode	Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component)
Events	Gets the list of event handlers that are attached to this Component. (Inherited from Component)
FalseValue	Gets or sets the actual value used when setting the value of the column to false.
FontHeight	Gets the height of the column's font. (Inherited from DataGridColumnStyle)
HeaderAccessibleObject	Gets the AccessibleObject for the column. (Inherited from DataGridColumnStyle)
HeaderText	Gets or sets the text of the column header. (Inherited from DataGridColumnStyle)
MappingName	Gets or sets the name of the data member to map the column style to. (Inherited from DataGridColumnStyle)
NullText	Gets or sets the text that is displayed when the column contains null. (Inherited from DataGridColumnStyle)
NullValue	Gets or sets the actual value used when setting the value of the column to Value.
PropertyDescriptor	Gets or sets the PropertyDescriptor that determines the attributes of data displayed by the DataGridColumnStyle. (Inherited from DataGridColumnStyle)
ReadOnly	Gets or sets a value indicating whether the data in the column can be edited. (Inherited from DataGridColumnStyle)
Site	Gets or sets the ISite of the Component. (Inherited from Component)
TrueValue	Gets or sets the actual value used when setting the value of the column to true.
Width	Gets or sets the width of the column. (Inherited from DataGridColumnStyle)

Methods

Abort(Int32)	Initiates a request to interrupt an edit procedure.
BeginUpdate()	Suspends the painting of the column until the EndUpdate() method is called. (Inherited from DataGridColumnStyle)
CheckValidDataSource(CurrencyManager)	Throws an exception if the DataGrid does not have a valid data source, or if this column is not mapped to a valid property in the data source. (Inherited from DataGridColumnStyle)
ColumnStartedEditing(Control)	Informs the DataGrid that the user has begun editing the column. (Inherited from DataGridColumnStyle)
Commit(CurrencyManager, Int32)	Initiates a request to complete an editing procedure.
ConcedeFocus()	Notifies a column that it must relinquish the focus to the control it is hosting.
CreateHeaderAccessibleObject()	Gets the AccessibleObject for the column. (Inherited from DataGridColumnStyle)
CreateObjRef(Type)	Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject)
Dispose()	Releases all resources used by the Component. (Inherited from Component)
Dispose(Boolean)	Releases the unmanaged resources used by the Component and optionally releases the managed resources. (Inherited from Component)
Edit(CurrencyManager, Int32, Rectangle, Boolean, String, Boolean)	Prepares the cell for editing a value.
Edit(CurrencyManager, Int32, Rectangle, Boolean, String)	Prepares the cell for editing using the specified CurrencyManager, row number, and Rectangle parameters. (Inherited from DataGridColumnStyle)
Edit(CurrencyManager, Int32, Rectangle, Boolean)	Prepares a cell for editing. (Inherited from DataGridColumnStyle)
EndUpdate()	Resumes the painting of columns suspended by calling the BeginUpdate() method. (Inherited from DataGridColumnStyle)
EnterNullValue()	Enters a Value into the column.
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetColumnValueAtRow(CurrencyManager, Int32)	Gets the value at the specified row.
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetLifetimeService()	Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject)
GetMinimumHeight()	Gets the height of a cell in a column.
GetPreferredHeight(Graphics, Object)	Gets the height used when resizing columns.
GetPreferredSize(Graphics, Object)	Gets the optimum width and height of a cell given a specific value to contain.
GetService(Type)	Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component)
GetType()	Gets the Type of the current instance. (Inherited from Object)
InitializeLifetimeService()	Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject)
Invalidate()	Redraws the column and causes a paint message to be sent to the control. (Inherited from DataGridColumnStyle)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
MemberwiseClone(Boolean)	Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject)
Paint(Graphics, Rectangle, CurrencyManager, Int32, Boolean)	Draws the DataGridBoolColumn with the given Graphics, Rectangle, row number, and alignment settings.
Paint(Graphics, Rectangle, CurrencyManager, Int32, Brush, Brush, Boolean)	Draws the DataGridBoolColumn with the given Graphics, Rectangle, row number, Brush, and Color.
Paint(Graphics, Rectangle, CurrencyManager, Int32)	Draws the DataGridBoolColumn with the given Graphics, Rectangle and row number.
ReleaseHostedControl()	Allows the column to free resources when the control it hosts is not needed. (Inherited from DataGridColumnStyle)
ResetHeaderText()	Resets the HeaderText to its default value, null. (Inherited from DataGridColumnStyle)
SetColumnValueAtRow(CurrencyManager, Int32, Object)	Sets the value of a specified row.
SetDataGrid(DataGrid)	Sets the DataGrid control that this column belongs to. (Inherited from DataGridColumnStyle)
SetDataGridInColumn(DataGrid)	Sets the DataGrid for the column. (Inherited from DataGridColumnStyle)
ToString()	Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component)
UpdateUI(CurrencyManager, Int32, String)	Updates the value of a specified row with the given text. (Inherited from DataGridColumnStyle)

Events

AlignmentChanged	Occurs when the Alignment property value changes. (Inherited from DataGridColumnStyle)
AllowNullChanged	Occurs when the AllowNull property is changed.
Disposed	Occurs when the component is disposed by a call to the Dispose() method. (Inherited from Component)
FalseValueChanged	Occurs when the FalseValue property is changed.
FontChanged	Occurs when the column's font changes. (Inherited from DataGridColumnStyle)
HeaderTextChanged	Occurs when the HeaderText property value changes. (Inherited from DataGridColumnStyle)
MappingNameChanged	Occurs when the MappingName value changes. (Inherited from DataGridColumnStyle)
NullTextChanged	Occurs when the NullText value changes. (Inherited from DataGridColumnStyle)
PropertyDescriptorChanged	Occurs when the PropertyDescriptor property value changes. (Inherited from DataGridColumnStyle)
ReadOnlyChanged	Occurs when the ReadOnly property value changes. (Inherited from DataGridColumnStyle)
TrueValueChanged	Occurs when the TrueValue property value is changed.
WidthChanged	Occurs when the Width property value changes. (Inherited from DataGridColumnStyle)

Explicit Interface Implementations

IDataGridColumnStyleEditingNotificationService.ColumnStartedEditing(Control)

Informs the DataGrid control that the user has begun editing the column. (Inherited from DataGridColumnStyle)

See also

• DataColumn
• DataGrid
• DataGridColumnStyle
• GridColumnStylesCollection
• GetType()
• Type