DataGridColumnStyle.Edit 方法

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

準備儲存格以編輯某個值。

多載

名稱	Description
Edit(CurrencyManager, Int32, Rectangle, Boolean)	準備一個單元進行編輯。
Edit(CurrencyManager, Int32, Rectangle, Boolean, String)	準備儲存格以指定 、 列號和CurrencyManager參數編輯Rectangle。
Edit(CurrencyManager, Int32, Rectangle, Boolean, String, Boolean)	當在推導類別中覆寫時，準備一個儲存格進行編輯。

Edit(CurrencyManager, Int32, Rectangle, Boolean)

來源:

DataGridColumnStyle.cs

準備一個單元進行編輯。

protected public:
 virtual void Edit(System::Windows::Forms::CurrencyManager ^ source, int rowNum, System::Drawing::Rectangle bounds, bool readOnly);

protected internal virtual void Edit(System.Windows.Forms.CurrencyManager source, int rowNum, System.Drawing.Rectangle bounds, bool readOnly);

abstract member Edit : System.Windows.Forms.CurrencyManager * int * System.Drawing.Rectangle * bool -> unit
override this.Edit : System.Windows.Forms.CurrencyManager * int * System.Drawing.Rectangle * bool -> unit

Protected Friend Overridable Sub Edit (source As CurrencyManager, rowNum As Integer, bounds As Rectangle, readOnly As Boolean)

參數

source

CurrencyManager

該 CurrencyManager 為 DataGridColumnStyle。

rowNum

Int32

要編輯的列號。

bounds

Rectangle

控制點將設置的邊界 Rectangle 。

readOnly

Boolean

一個表示欄位是否為唯讀的值。 true若值為唯讀;否則，。 false

備註

通常，該 Edit 方法會在被編輯格子的位置設置控制點。

Edit(CurrencyManager, Int32, Rectangle, Boolean, String)

來源:

DataGridColumnStyle.cs

準備儲存格以指定 、 列號和CurrencyManager參數編輯Rectangle。

protected public:
 virtual void Edit(System::Windows::Forms::CurrencyManager ^ source, int rowNum, System::Drawing::Rectangle bounds, bool readOnly, System::String ^ displayText);

protected internal virtual void Edit(System.Windows.Forms.CurrencyManager source, int rowNum, System.Drawing.Rectangle bounds, bool readOnly, string displayText);

abstract member Edit : System.Windows.Forms.CurrencyManager * int * System.Drawing.Rectangle * bool * string -> unit
override this.Edit : System.Windows.Forms.CurrencyManager * int * System.Drawing.Rectangle * bool * string -> unit

Protected Friend Overridable Sub Edit (source As CurrencyManager, rowNum As Integer, bounds As Rectangle, readOnly As Boolean, displayText As String)

參數

source

CurrencyManager

該 CurrencyManager 為 DataGridColumnStyle。

rowNum

Int32

本欄正在編輯的列號。

bounds

Rectangle

Rectangle控制中心將設置於何處。

readOnly

Boolean

一個表示欄位是否為唯讀的值。 true若值為唯讀;否則，。 false

displayText

String

要在控制鍵裡顯示文字。

範例

以下程式碼範例使用 Edit 方法來更改 System.Windows.Forms.DataGrid 控制項中點擊儲存格的文字。

public ref class Form1: public Form
{
private:
   DataSet^ myDataSet;
   void dataGrid1_MouseDown( Object^ sender, MouseEventArgs^ e )
   {
      // Use the HitTest method to get a HitTestInfo object.
      System::Windows::Forms::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 CurrencyManager of the
         // clicked table.         
         DataGridTableStyle^ dgt = grid->TableStyles[ 0 ];
         CurrencyManager^ myCurrencyManager = 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.
         MyColumnStyle ^ gridCol = dynamic_cast<MyColumnStyle^>(dgt->GridColumnStyles[ hi->Column ]);

         // Edit the value.
         gridCol->EditVal( myCurrencyManager, hi->Row, cellRect, false, "New Text" );
      }
   }


public:
   ref class MyColumnStyle: public DataGridTextBoxColumn
   {
   public:
      void EditVal( CurrencyManager^ cm, int row, Rectangle rec, bool readOnly, String^ text )
      {
         this->Edit( cm, row, rec, readOnly, text );
      }
   };
};

public class Form1: Form
{
static void Main(){}

protected DataSet myDataSet;

private void dataGrid1_MouseDown(object sender, MouseEventArgs e)
{
    // Use the HitTest method to get a HitTestInfo object.
    System.Windows.Forms.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 CurrencyManager of the
       // clicked table.         
       DataGridTableStyle dgt = grid.TableStyles[0];     
       CurrencyManager myCurrencyManager = (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.
       MyColumnStyle gridCol =(MyColumnStyle) 
       dgt.GridColumnStyles[hi.Column];
       // Edit the value.
       gridCol.EditVal(myCurrencyManager, hi.Row, cellRect, false, "New Text");
    }
 }

public class MyColumnStyle:DataGridTextBoxColumn{
    public void EditVal(CurrencyManager cm, int row, Rectangle rec, 
    bool readOnly, string text){
        this.Edit(cm, row, rec, readOnly, text);
    }
}
}

Public Class Form1
   Inherits Form

   Protected myDataSet As DataSet

   Shared Sub Main()
   End Sub
    
    Private Sub dataGrid1_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs)
        ' Use the HitTest method to get a HitTestInfo object.
        Dim hi As System.Windows.Forms.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 CurrencyManager of the
            ' clicked table.         
            Dim dgt As DataGridTableStyle = grid.TableStyles(0)
            Dim myCurrencyManager 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 MyColumnStyle = CType(dgt.GridColumnStyles _
            (hi.Column), MyColumnStyle)
            ' Edit the value.
            gridCol.EditVal(myCurrencyManager, hi.Row, cellRect, False, "New Text")
        End If
    End Sub
End Class 

Public Class MyColumnStyle
   Inherits DataGridTextBoxColumn
   Public Sub EditVal(cm As CurrencyManager, row As Integer, _
   rec As Rectangle, bReadOnly As Boolean, text As String)
      MyBase.Edit(cm, row, rec, bReadOnly, text)
   End Sub
End Class

備註

通常，該 Edit 方法會在被編輯格子的位置設置控制點。

Edit(CurrencyManager, Int32, Rectangle, Boolean, String, Boolean)

來源:

DataGridColumnStyle.cs

當在推導類別中覆寫時，準備一個儲存格進行編輯。

protected public:
 abstract void Edit(System::Windows::Forms::CurrencyManager ^ source, int rowNum, System::Drawing::Rectangle bounds, bool readOnly, System::String ^ displayText, bool cellIsVisible);

protected internal abstract void Edit(System.Windows.Forms.CurrencyManager source, int rowNum, System.Drawing.Rectangle bounds, bool readOnly, string displayText, bool cellIsVisible);

abstract member Edit : System.Windows.Forms.CurrencyManager * int * System.Drawing.Rectangle * bool * string * bool -> unit

Protected Friend MustOverride Sub Edit (source As CurrencyManager, rowNum As Integer, bounds As Rectangle, readOnly As Boolean, displayText As String, cellIsVisible As Boolean)

參數

source

CurrencyManager

該 CurrencyManager 為 DataGridColumnStyle。

rowNum

Int32

本欄正在編輯的列號。

bounds

Rectangle

Rectangle控制中心將設置於何處。

readOnly

Boolean

一個表示欄位是否為唯讀的值。 true若值為唯讀;否則，。 false

displayText

String

要在控制鍵裡顯示文字。

cellIsVisible

Boolean

一個表示格子是否可見的數值。 true如果格子是可見的;否則，。 false

備註

通常，該 Edit 方法會在被編輯格子的位置設置控制點。