DataGridBoolColumn Classe
Definição
Importante
Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.
Especifica uma coluna na qual cada célula contém uma caixa de seleção para representar um valor booliano.
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
- Herança
Exemplos
O exemplo de código a seguir primeiro cria um novo DataGridBoolColumn e o GridColumnStylesCollection adiciona ao de um 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
Comentários
O DataGridBoolColumn deriva da abstract
classe DataGridColumnStyle. Em tempo de execução, o DataGridBoolColumn contém caixas marcar em cada célula que têm três estados por padrão: marcada (true
), desmarcada (false
) e Value. Para usar caixas de marcar de dois estados, defina a AllowNull propriedade como false
.
As propriedades adicionadas à classe incluem FalseValue, NullValuee TrueValue. Essas propriedades especificam o valor subjacente a cada um dos estados da coluna.
Construtores
DataGridBoolColumn() |
Inicializa uma nova instância da classe DataGridBoolColumn. |
DataGridBoolColumn(PropertyDescriptor) |
Inicializa uma nova instância da classe DataGridBoolColumn com o PropertyDescriptor especificado. |
DataGridBoolColumn(PropertyDescriptor, Boolean) |
Inicializa uma nova instância da DataGridBoolColumn classe com o especificado PropertyDescriptore especifica se o estilo de coluna é uma coluna padrão. |
Propriedades
Alignment |
Obtém ou define o alinhamento do texto em uma coluna. (Herdado de DataGridColumnStyle) |
AllowNull |
Obtém ou define um valor que indica se valores nulos são permitidos. |
CanRaiseEvents |
Obtém um valor que indica se o componente pode acionar um evento. (Herdado de Component) |
Container |
Obtém o IContainer que contém o Component. (Herdado de Component) |
DataGridTableStyle |
Obtém o DataGridTableStyle da coluna. (Herdado de DataGridColumnStyle) |
DesignMode |
Obtém um valor que indica se o Component está no modo de design no momento. (Herdado de Component) |
Events |
Obtém a lista de manipuladores de eventos que estão anexados a este Component. (Herdado de Component) |
FalseValue |
Obtém ou define o valor real usado ao definir o valor da coluna como |
FontHeight |
Obtém a altura da fonte da coluna. (Herdado de DataGridColumnStyle) |
HeaderAccessibleObject |
Obtém o AccessibleObject da coluna. (Herdado de DataGridColumnStyle) |
HeaderText |
Obtém ou define o contexto do cabeçalho da coluna. (Herdado de DataGridColumnStyle) |
MappingName |
Obtém ou define o nome do membro de dados para o qual mapear o estilo da coluna. (Herdado de DataGridColumnStyle) |
NullText |
Obtém ou define o texto que é exibido quando a coluna contém |
NullValue |
Obtém ou define o valor real usado ao definir o valor da coluna como Value. |
PropertyDescriptor |
Obtém ou define o PropertyDescriptor que determina os atributos dos dados exibidos pelo DataGridColumnStyle. (Herdado de DataGridColumnStyle) |
ReadOnly |
Obtém ou define um valor que indica se os dados na coluna podem ser editados. (Herdado de DataGridColumnStyle) |
Site |
Obtém ou define o ISite do Component. (Herdado de Component) |
TrueValue |
Obtém ou define o valor real usado ao definir o valor da coluna como |
Width |
Obtém ou define a largura da coluna. (Herdado de DataGridColumnStyle) |
Métodos
Abort(Int32) |
Inicia uma solicitação para interromper um procedimento de edição. |
BeginUpdate() |
Suspende a pintura da coluna até que o método EndUpdate() seja chamado. (Herdado de DataGridColumnStyle) |
CheckValidDataSource(CurrencyManager) |
Gera uma exceção se o DataGrid não tem uma fonte de dados válido ou se essa coluna não está mapeada para uma propriedade válida na fonte de dados. (Herdado de DataGridColumnStyle) |
ColumnStartedEditing(Control) |
Informa ao DataGrid que o usuário começou a editar a coluna. (Herdado de DataGridColumnStyle) |
Commit(CurrencyManager, Int32) |
Inicia uma solicitação para concluir um procedimento de edição. |
ConcedeFocus() |
Notifica uma coluna de que ela deve liberar o foco para o controle que está hospedando. |
CreateHeaderAccessibleObject() |
Obtém o AccessibleObject da coluna. (Herdado de DataGridColumnStyle) |
CreateObjRef(Type) |
Cria um objeto que contém todas as informações relevantes necessárias para gerar um proxy usado para se comunicar com um objeto remoto. (Herdado de MarshalByRefObject) |
Dispose() |
Libera todos os recursos usados pelo Component. (Herdado de Component) |
Dispose(Boolean) |
Libera os recursos não gerenciados usados pelo Component e opcionalmente libera os recursos gerenciados. (Herdado de Component) |
Edit(CurrencyManager, Int32, Rectangle, Boolean) |
Prepara uma célula para edição. (Herdado de DataGridColumnStyle) |
Edit(CurrencyManager, Int32, Rectangle, Boolean, String) |
Prepara a célula para edição usando o CurrencyManager, o número da linha e os parâmetros Rectangle especificados. (Herdado de DataGridColumnStyle) |
Edit(CurrencyManager, Int32, Rectangle, Boolean, String, Boolean) |
Prepara a célula para a edição de um valor. |
EndUpdate() |
Retoma a pintura de colunas suspensa chamando o método BeginUpdate(). (Herdado de DataGridColumnStyle) |
EnterNullValue() |
Insere um Value na coluna. |
Equals(Object) |
Determina se o objeto especificado é igual ao objeto atual. (Herdado de Object) |
GetColumnValueAtRow(CurrencyManager, Int32) |
Obtém o valor na linha especificada. |
GetHashCode() |
Serve como a função de hash padrão. (Herdado de Object) |
GetLifetimeService() |
Obsoleto.
Recupera o objeto de serviço de tempo de vida atual que controla a política de ciclo de vida para esta instância. (Herdado de MarshalByRefObject) |
GetMinimumHeight() |
Obtém a altura de uma célula em uma coluna. |
GetPreferredHeight(Graphics, Object) |
Obtém a altura usada ao redimensionar colunas. |
GetPreferredSize(Graphics, Object) |
Obtém a melhor largura e altura de uma célula dado um valor específico para conter. |
GetService(Type) |
Retorna um objeto que representa um serviço fornecido pelo Component ou pelo seu Container. (Herdado de Component) |
GetType() |
Obtém o Type da instância atual. (Herdado de Object) |
InitializeLifetimeService() |
Obsoleto.
Obtém um objeto de serviço de tempo de vida para controlar a política de tempo de vida para essa instância. (Herdado de MarshalByRefObject) |
Invalidate() |
Redesenha a coluna e faz com que uma mensagem de pintura seja enviada para o controle. (Herdado de DataGridColumnStyle) |
MemberwiseClone() |
Cria uma cópia superficial do Object atual. (Herdado de Object) |
MemberwiseClone(Boolean) |
Cria uma cópia superficial do objeto MarshalByRefObject atual. (Herdado de MarshalByRefObject) |
Paint(Graphics, Rectangle, CurrencyManager, Int32) |
Desenha o DataGridBoolColumn com o determinado Graphics, Rectangle e o número de linha. |
Paint(Graphics, Rectangle, CurrencyManager, Int32, Boolean) |
Desenha o DataGridBoolColumn com o determinado Graphics, Rectangle, número de linha e configurações de alinhamento. |
Paint(Graphics, Rectangle, CurrencyManager, Int32, Brush, Brush, Boolean) |
Desenha o DataGridBoolColumn com o determinado Graphics, Rectangle, número de linha, Brush e Color. |
ReleaseHostedControl() |
Permite que a coluna libere recursos quando o controle que ela hospeda não é necessário. (Herdado de DataGridColumnStyle) |
ResetHeaderText() |
Redefine o HeaderText para seu valor padrão, |
SetColumnValueAtRow(CurrencyManager, Int32, Object) |
Define o valor de uma linha especificada. |
SetDataGrid(DataGrid) |
Define o controle DataGrid ao qual esta coluna pertence. (Herdado de DataGridColumnStyle) |
SetDataGridInColumn(DataGrid) |
Define o DataGrid para a coluna. (Herdado de DataGridColumnStyle) |
ToString() |
Retorna um String que contém o nome do Component, se houver. Esse método não deve ser substituído. (Herdado de Component) |
UpdateUI(CurrencyManager, Int32, String) |
Atualiza o valor de uma linha especificada com o texto especificado. (Herdado de DataGridColumnStyle) |
Eventos
AlignmentChanged |
Ocorre quando o valor da propriedade Alignment muda. (Herdado de DataGridColumnStyle) |
AllowNullChanged |
Ocorre quando a propriedade AllowNull é modificada. |
Disposed |
Ocorre quando o componente é disposto por uma chamada ao método Dispose(). (Herdado de Component) |
FalseValueChanged |
Ocorre quando a propriedade FalseValue é modificada. |
FontChanged |
Ocorre quando a fonte da coluna é alterada. (Herdado de DataGridColumnStyle) |
HeaderTextChanged |
Ocorre quando o valor da propriedade HeaderText muda. (Herdado de DataGridColumnStyle) |
MappingNameChanged |
Ocorre quando o valor MappingName é alterado. (Herdado de DataGridColumnStyle) |
NullTextChanged |
Ocorre quando o valor NullText é alterado. (Herdado de DataGridColumnStyle) |
PropertyDescriptorChanged |
Ocorre quando o valor da propriedade PropertyDescriptor muda. (Herdado de DataGridColumnStyle) |
ReadOnlyChanged |
Ocorre quando o valor da propriedade ReadOnly muda. (Herdado de DataGridColumnStyle) |
TrueValueChanged |
Ocorre quando o valor da propriedade TrueValue é alterado. |
WidthChanged |
Ocorre quando o valor da propriedade Width muda. (Herdado de DataGridColumnStyle) |
Implantações explícitas de interface
IDataGridColumnStyleEditingNotificationService.ColumnStartedEditing(Control) |
Informa ao controle DataGrid que o usuário começou a editar a coluna. (Herdado de DataGridColumnStyle) |