DataGridTextBoxColumn.Paint 方法

參考

定義

命名空間:: System.Windows.Forms

組件:: System.Windows.Forms.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

在 DataGrid 控制項中繪製資料行。

多載

Paint(Graphics, Rectangle, CurrencyManager, Int32)	繪製 DataGridColumnStyle 成為指定的 Graphics、Rectangle、CurrencyManager 和資料列編號。
Paint(Graphics, Rectangle, CurrencyManager, Int32, Boolean)	繪製 DataGridColumnStyle 為指定的 Graphics、Rectangle、CurrencyManager 和資料列編號和對齊。
Paint(Graphics, Rectangle, CurrencyManager, Int32, Brush, Brush, Boolean)	繪製 DataGridColumnStyle 為指定的 Graphics、Rectangle、CurrencyManager 和資料列編號、Brush 和對齊。

Paint(Graphics, Rectangle, CurrencyManager, Int32)

繪製 DataGridColumnStyle 成為指定的 Graphics、Rectangle、CurrencyManager 和資料列編號。

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)

參數

g: Graphics

要繪製的 Graphics 物件。

bounds: Rectangle

要繪圖的目標周框 Rectangle。

source: CurrencyManager

CurrencyManager 的 DataGrid，包含資料行。

rowNum: Int32

基礎資料表中資料表列的編號。

另請參閱

適用於

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

繪製 DataGridColumnStyle 為指定的 Graphics、Rectangle、CurrencyManager 和資料列編號和對齊。

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)

參數

g: Graphics

要繪製的 Graphics 物件。

bounds: Rectangle

要繪圖的目標周框 Rectangle。

source: CurrencyManager

CurrencyManager 的 DataGrid，包含資料行。

rowNum: Int32

基礎資料表中資料表列的編號。

alignToRight: Boolean

數值，指出是否將資料行內容靠右對齊。如果內容應靠右對齊，則為 true，否則為 false。

備註

方法 Paint 會使用 GetColumnValueAtRow 來判斷要繪製在儲存格中的值。呼叫 PaintText 方法以繪製儲存格及其內容。

另請參閱

適用於

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

繪製 DataGridColumnStyle 為指定的 Graphics、Rectangle、CurrencyManager 和資料列編號、Brush 和對齊。

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)

參數

g: Graphics

要繪製的 Graphics 物件。

bounds: Rectangle

要繪圖的目標周框 Rectangle。

source: CurrencyManager

CurrencyManager 的 DataGrid，包含資料行。

rowNum: Int32

基礎資料表中資料表列的編號。

backBrush: Brush

繪製背景的 Brush。

foreBrush: Brush

繪製前景色彩的 Brush。

alignToRight: Boolean

數值，指出是否將資料行內容靠右對齊。如果內容應靠右對齊，則為 true，否則為 false。

範例

下列範例會 Paint 使用方法來繪製具有新前景和背景色彩的點選儲存格。

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

備註

方法 Paint 會使用 GetColumnValueAtRow 來判斷要繪製在儲存格中的值。呼叫 PaintText 方法以繪製儲存格及其內容。

另請參閱

適用於

DataGridTextBoxColumn.Paint 方法

定義

多載

Paint(Graphics, Rectangle, CurrencyManager, Int32)

參數

另請參閱

適用於

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

參數

備註

另請參閱

適用於

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

參數

範例

備註

另請參閱

適用於

其他資源