DataGridColumnStyle.Edit Methode
Definition
Wichtig
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Bereitet die Zelle für das Bearbeiten eines Werts vor.
Überlädt
Edit(CurrencyManager, Int32, Rectangle, Boolean) |
Bereitet eine Zelle für die Bearbeitung vor. |
Edit(CurrencyManager, Int32, Rectangle, Boolean, String) |
Bereitet die Zelle unter Verwendung des angegebenen CurrencyManager, der Zeilennummer und der Rectangle-Parameter für die Bearbeitung vor. |
Edit(CurrencyManager, Int32, Rectangle, Boolean, String, Boolean) |
Bereitet beim Überschreiben in einer abgeleiteten Klasse eine Zelle für die Bearbeitung vor. |
Edit(CurrencyManager, Int32, Rectangle, Boolean)
Bereitet eine Zelle für die Bearbeitung vor.
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)
Parameter
- source
- CurrencyManager
Der CurrencyManager für den DataGridColumnStyle.
- rowNum
- Int32
Die Nummer der zu bearbeitenden Zeile.
- readOnly
- Boolean
Ein Wert, der angibt, ob die Spalte schreibgeschützt ist. true
, wenn der Wert schreibgeschützt ist, andernfalls false
.
Hinweise
In der Regel werden die Edit Methoden auf dem Raster an der Position der bearbeiteten Zelle gespeichert.
Gilt für
Edit(CurrencyManager, Int32, Rectangle, Boolean, String)
Bereitet die Zelle unter Verwendung des angegebenen CurrencyManager, der Zeilennummer und der Rectangle-Parameter für die Bearbeitung vor.
protected public:
virtual void Edit(System::Windows::Forms::CurrencyManager ^ source, int rowNum, System::Drawing::Rectangle bounds, bool readOnly, System::String ^ instantText);
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 instantText);
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
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, instantText As String)
Protected Friend Overridable Sub Edit (source As CurrencyManager, rowNum As Integer, bounds As Rectangle, readOnly As Boolean, displayText As String)
Parameter
- source
- CurrencyManager
Der CurrencyManager für den DataGridColumnStyle.
- rowNum
- Int32
Die Nummer der Zeile in dieser Spalte, die bearbeitet wird.
- readOnly
- Boolean
Ein Wert, der angibt, ob die Spalte schreibgeschützt ist. true
, wenn der Wert schreibgeschützt ist, andernfalls false
.
- instantTextdisplayText
- String
Der im Steuerelement anzuzeigende Text.
Beispiele
Im folgenden Codebeispiel wird die Edit Methode verwendet, um den Text einer geklickten Zelle im System.Windows.Forms.DataGrid Steuerelement zu ändern.
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
Hinweise
In der Regel werden die Edit Methoden auf dem Raster an der Position der bearbeiteten Zelle gespeichert.
Gilt für
Edit(CurrencyManager, Int32, Rectangle, Boolean, String, Boolean)
Bereitet beim Überschreiben in einer abgeleiteten Klasse eine Zelle für die Bearbeitung vor.
protected public:
abstract void Edit(System::Windows::Forms::CurrencyManager ^ source, int rowNum, System::Drawing::Rectangle bounds, bool readOnly, System::String ^ instantText, bool cellIsVisible);
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 instantText, 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
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, instantText As String, cellIsVisible As Boolean)
Protected Friend MustOverride Sub Edit (source As CurrencyManager, rowNum As Integer, bounds As Rectangle, readOnly As Boolean, displayText As String, cellIsVisible As Boolean)
Parameter
- source
- CurrencyManager
Der CurrencyManager für den DataGridColumnStyle.
- rowNum
- Int32
Die Nummer der Zeile in dieser Spalte, die bearbeitet wird.
- readOnly
- Boolean
Ein Wert, der angibt, ob die Spalte schreibgeschützt ist. true
, wenn der Wert schreibgeschützt ist, andernfalls false
.
- instantTextdisplayText
- String
Der im Steuerelement anzuzeigende Text.
- cellIsVisible
- Boolean
Ein Wert, der angibt, ob die Zelle sichtbar ist. true
, wenn die Zelle sichtbar ist, andernfalls false
.
Hinweise
In der Regel werden die Edit Methoden auf dem Raster an der Position der bearbeiteten Zelle gespeichert.