DataGridTextBoxColumn.Paint Metoda

Reference

Definice

Obor názvů:: System.Windows.Forms

Sestavení:: System.Windows.Forms.dll

Důležité

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Nakreslí sloupec v ovládacím DataGrid prvku.

Přetížení

Paint(Graphics, Rectangle, CurrencyManager, Int32)	Nakreslí ho DataGridColumnStyle se zadaným Graphicsčíslem , Rectangle, CurrencyManagera číslem řádku.
Paint(Graphics, Rectangle, CurrencyManager, Int32, Boolean)	Nakreslí zadanou DataGridColumnStyle Graphicshodnotu , , Rectanglečíslo CurrencyManagerřádku a zarovnání.
Paint(Graphics, Rectangle, CurrencyManager, Int32, Brush, Brush, Boolean)	DataGridColumnStyle Nakreslí barvu se zadaným Graphicsčíslem , číslem Rectangle CurrencyManagerřádku Brusha popředím.

Paint(Graphics, Rectangle, CurrencyManager, Int32)

Nakreslí ho DataGridColumnStyle se zadaným Graphicsčíslem , Rectangle, CurrencyManagera číslem řádku.

protected public:
 override void Paint(System::Drawing::Graphics ^ g, System::Drawing::Rectangle bounds, System::Windows::Forms::CurrencyManager ^ source, int rowNum);

protected internal override void Paint (System.Drawing.Graphics g, System.Drawing.Rectangle bounds, System.Windows.Forms.CurrencyManager source, int rowNum);

override this.Paint : System.Drawing.Graphics * System.Drawing.Rectangle * System.Windows.Forms.CurrencyManager * int -> unit

Protected Friend Overrides Sub Paint (g As Graphics, bounds As Rectangle, source As CurrencyManager, rowNum As Integer)

Parametry

g: Graphics

Objekt Graphics , na který chcete nakreslit.

bounds: Rectangle

Ohraničení Rectangle , do které se má malovat.

source: CurrencyManager

The CurrencyManager of DataGrid the that contains the column.

rowNum: Int32

Počet řádků v podkladové tabulce dat.

Viz také

Platí pro

Paint(Graphics, Rectangle, CurrencyManager, Int32, Boolean)

Nakreslí zadanou DataGridColumnStyle Graphicshodnotu , , Rectanglečíslo CurrencyManagerřádku a zarovnání.

protected public:
 override void Paint(System::Drawing::Graphics ^ g, System::Drawing::Rectangle bounds, System::Windows::Forms::CurrencyManager ^ source, int rowNum, bool alignToRight);

protected internal override void Paint (System.Drawing.Graphics g, System.Drawing.Rectangle bounds, System.Windows.Forms.CurrencyManager source, int rowNum, bool alignToRight);

override this.Paint : System.Drawing.Graphics * System.Drawing.Rectangle * System.Windows.Forms.CurrencyManager * int * bool -> unit

Protected Friend Overrides Sub Paint (g As Graphics, bounds As Rectangle, source As CurrencyManager, rowNum As Integer, alignToRight As Boolean)

Parametry

g: Graphics

Objekt Graphics , na který chcete nakreslit.

bounds: Rectangle

Ohraničení Rectangle , do které se má malovat.

source: CurrencyManager

The CurrencyManager of DataGrid the that contains the column.

rowNum: Int32

Počet řádků v podkladové tabulce dat.

alignToRight: Boolean

Hodnota označující, jestli se má obsah sloupce zarovnat doprava. trueje-li obsah zarovnán doprava; v opačném případě . false

Poznámky

Metoda Paint používá GetColumnValueAtRow k určení hodnoty, která se má nakreslit v buňce. Metoda PaintText se volá k nakreslení buňky a jejího obsahu.

Viz také

Platí pro

Paint(Graphics, Rectangle, CurrencyManager, Int32, Brush, Brush, Boolean)

DataGridColumnStyle Nakreslí barvu se zadaným Graphicsčíslem , číslem Rectangle CurrencyManagerřádku Brusha popředím.

protected public:
 override void Paint(System::Drawing::Graphics ^ g, System::Drawing::Rectangle bounds, System::Windows::Forms::CurrencyManager ^ source, int rowNum, System::Drawing::Brush ^ backBrush, System::Drawing::Brush ^ foreBrush, bool alignToRight);

protected internal override void Paint (System.Drawing.Graphics g, System.Drawing.Rectangle bounds, System.Windows.Forms.CurrencyManager source, int rowNum, System.Drawing.Brush backBrush, System.Drawing.Brush foreBrush, bool alignToRight);

override this.Paint : System.Drawing.Graphics * System.Drawing.Rectangle * System.Windows.Forms.CurrencyManager * int * System.Drawing.Brush * System.Drawing.Brush * bool -> unit

Protected Friend Overrides Sub Paint (g As Graphics, bounds As Rectangle, source As CurrencyManager, rowNum As Integer, backBrush As Brush, foreBrush As Brush, alignToRight As Boolean)

Parametry

g: Graphics

Objekt Graphics , na který chcete nakreslit.

bounds: Rectangle

Ohraničení Rectangle , do které se má malovat.

source: CurrencyManager

The CurrencyManager of DataGrid the that contains the column.

rowNum: Int32

Počet řádků v podkladové tabulce dat.

backBrush: Brush

A Brush to nakresluje pozadí.

foreBrush: Brush

A Brush , která maluje barvu popředí.

alignToRight: Boolean

Hodnota označující, jestli se má obsah sloupce zarovnat doprava. trueje-li obsah zarovnán doprava; v opačném případě . false

Příklady

Následující příklad používá metodu Paint k malování klikané buňky s novou popředím a barvou pozadí.

public ref class MyGridColumn: public DataGridTextBoxColumn
{
public:
   void PaintCol( Graphics^ g, Rectangle cellRect, CurrencyManager^ cm, int rowNum, Brush^ bBrush, Brush^ fBrush, bool isVisible )
   {
      this->Paint( g, cellRect, cm, rowNum, bBrush, fBrush, isVisible );
   }

};

public ref class Form1: public Form
{
protected:
   DataGrid^ dataGrid1;
   DataSet^ myDataSet;

private:
   void PaintCell( Object^ sender, MouseEventArgs^ e )
   {
      
      // Use the HitTest method to get a HitTestInfo object.
      DataGrid::HitTestInfo ^ hi;
      DataGrid^ grid = dynamic_cast<DataGrid^>(sender);
      hi = grid->HitTest( e->X, e->Y );
      
      // Test if the clicked area was a cell.
      if ( hi->Type == DataGrid::HitTestType::Cell )
      {
         
         // If it's a cell, get the GridTable and ListManager of the
         // clicked table.         
         DataGridTableStyle^ dgt = dataGrid1->TableStyles[ 0 ];
         CurrencyManager^ cm = dynamic_cast<CurrencyManager^>(this->BindingContext[ myDataSet->Tables[ dgt->MappingName ] ]);
         
         // Get the Rectangle of the clicked cell.
         Rectangle cellRect;
         cellRect = grid->GetCellBounds( hi->Row, hi->Column );
         
         // Get the clicked DataGridTextBoxColumn.
         MyGridColumn^ gridCol = dynamic_cast<MyGridColumn^>(dgt->GridColumnStyles[ hi->Column ]);
         
         // Get the Graphics object for the form.
         Graphics^ g = dataGrid1->CreateGraphics();
         
         // Create two new Brush objects, a fore brush, and back brush.
         Brush^ fBrush = gcnew System::Drawing::SolidBrush( Color::Blue );
         Brush^ bBrush = gcnew System::Drawing::SolidBrush( Color::Yellow );
         
         // Invoke the Paint method to paint the cell with the brushes.
         gridCol->PaintCol( g, cellRect, cm, hi->Row, bBrush, fBrush, false );
      }
   }

};

public class Form1: Form
{
 protected DataGrid dataGrid1;
 protected DataSet myDataSet;

private void PaintCell(object sender, MouseEventArgs e)
{
    // Use the HitTest method to get a HitTestInfo object.
    DataGrid.HitTestInfo hi;
    DataGrid grid = (DataGrid)sender;
    hi=grid.HitTest(e.X, e.Y);
    // Test if the clicked area was a cell.
    if(hi.Type == DataGrid.HitTestType.Cell)
    {
       // If it's a cell, get the GridTable and ListManager of the
       // clicked table.         
       DataGridTableStyle dgt = dataGrid1.TableStyles[0];
       CurrencyManager cm = (CurrencyManager)this.BindingContext[myDataSet.Tables[dgt.MappingName]];
       // Get the Rectangle of the clicked cell.
       Rectangle cellRect;
       cellRect=grid.GetCellBounds(hi.Row, hi.Column);
       // Get the clicked DataGridTextBoxColumn.
       MyGridColumn  gridCol =(MyGridColumn)dgt.GridColumnStyles[hi.Column];
       // Get the Graphics object for the form.
       Graphics g = dataGrid1.CreateGraphics();
       // Create two new Brush objects, a fore brush, and back brush.
       Brush fBrush = new System.Drawing.SolidBrush(Color.Blue);
       Brush bBrush= new System.Drawing.SolidBrush(Color.Yellow);
       // Invoke the Paint method to paint the cell with the brushes.
       gridCol.PaintCol(g, cellRect, cm, hi.Row, bBrush, fBrush, false);
     }
 }
}

public class MyGridColumn:DataGridTextBoxColumn{
   public void PaintCol(Graphics g, Rectangle cellRect, 
    CurrencyManager cm, int rowNum, Brush bBrush, 
    Brush fBrush, bool isVisible){
      this.Paint(g, cellRect, cm, rowNum, bBrush, fBrush, isVisible);
   }
}

Public Class Form1
   Inherits Form
   Protected dataGrid1 As DataGrid
   Protected myDataSet As DataSet
    
   Private Sub PaintCell(sender As Object, e As MouseEventArgs)
      ' Use the HitTest method to get a HitTestInfo object.
      Dim hi As DataGrid.HitTestInfo
      Dim grid As DataGrid = CType(sender, DataGrid)
      hi = grid.HitTest(e.X, e.Y)
      ' Test if the clicked area was a cell.
      If hi.Type = DataGrid.HitTestType.Cell Then
         ' If it's a cell, get the GridTable and ListManager of the
         ' clicked table.         
         Dim dgt As DataGridTableStyle = dataGrid1.TableStyles(0)
         Dim cm As CurrencyManager = CType(Me.BindingContext _
         (myDataSet.Tables(dgt.MappingName)), CurrencyManager)
         ' Get the Rectangle of the clicked cell.
         Dim cellRect As Rectangle
         cellRect = grid.GetCellBounds(hi.Row, hi.Column)
         ' Get the clicked DataGridTextBoxColumn.
         Dim gridCol As MyGridColumn = CType _
         (dgt.GridColumnStyles(hi.Column), MyGridColumn)
         ' Get the Graphics object for the form.
         Dim g As Graphics = dataGrid1.CreateGraphics()
         ' Create two new Brush objects: a fore brush and back brush.
         Dim fBrush As New SolidBrush(Color.Blue)
         Dim bBrush As New SolidBrush(Color.Yellow)
         ' Invoke the Paint method to paint the cell with the brushes.
         gridCol.PaintCol(g, cellRect, cm, hi.Row, bBrush, fBrush, False)
      End If
   End Sub
End Class

Public Class MyGridColumn
Inherits DataGridTextBoxColumn
   Public Sub PaintCol(g As Graphics , cellRect As Rectangle , _
      cm As CurrencyManager , rowNum As integer , bBrush as Brush , _
      fBrush As Brush , isVisible As Boolean )
      me.Paint(g, cellRect, cm, rowNum, bBrush, fBrush, isVisible)
   End Sub
End Class

Poznámky

Metoda Paint používá GetColumnValueAtRow k určení hodnoty, která se má nakreslit v buňce. Metoda PaintText se volá k nakreslení buňky a jejího obsahu.

Viz také

Platí pro

Sdílet prostřednictvím

DataGridTextBoxColumn.Paint Metoda

Definice

Přetížení

Paint(Graphics, Rectangle, CurrencyManager, Int32)

Parametry

Viz také

Platí pro

Paint(Graphics, Rectangle, CurrencyManager, Int32, Boolean)

Parametry

Poznámky

Viz také

Platí pro

Paint(Graphics, Rectangle, CurrencyManager, Int32, Brush, Brush, Boolean)

Parametry

Příklady

Poznámky

Viz také

Platí pro

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