DataGridViewCell.Paint Method
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Paints the current DataGridViewCell.
protected:
virtual void Paint(System::Drawing::Graphics ^ graphics, System::Drawing::Rectangle clipBounds, System::Drawing::Rectangle cellBounds, int rowIndex, System::Windows::Forms::DataGridViewElementStates cellState, System::Object ^ value, System::Object ^ formattedValue, System::String ^ errorText, System::Windows::Forms::DataGridViewCellStyle ^ cellStyle, System::Windows::Forms::DataGridViewAdvancedBorderStyle ^ advancedBorderStyle, System::Windows::Forms::DataGridViewPaintParts paintParts);
protected virtual void Paint (System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle cellBounds, int rowIndex, System.Windows.Forms.DataGridViewElementStates cellState, object value, object formattedValue, string errorText, System.Windows.Forms.DataGridViewCellStyle cellStyle, System.Windows.Forms.DataGridViewAdvancedBorderStyle advancedBorderStyle, System.Windows.Forms.DataGridViewPaintParts paintParts);
protected virtual void Paint (System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle cellBounds, int rowIndex, System.Windows.Forms.DataGridViewElementStates cellState, object? value, object? formattedValue, string? errorText, System.Windows.Forms.DataGridViewCellStyle cellStyle, System.Windows.Forms.DataGridViewAdvancedBorderStyle advancedBorderStyle, System.Windows.Forms.DataGridViewPaintParts paintParts);
abstract member Paint : System.Drawing.Graphics * System.Drawing.Rectangle * System.Drawing.Rectangle * int * System.Windows.Forms.DataGridViewElementStates * obj * obj * string * System.Windows.Forms.DataGridViewCellStyle * System.Windows.Forms.DataGridViewAdvancedBorderStyle * System.Windows.Forms.DataGridViewPaintParts -> unit
override this.Paint : System.Drawing.Graphics * System.Drawing.Rectangle * System.Drawing.Rectangle * int * System.Windows.Forms.DataGridViewElementStates * obj * obj * string * System.Windows.Forms.DataGridViewCellStyle * System.Windows.Forms.DataGridViewAdvancedBorderStyle * System.Windows.Forms.DataGridViewPaintParts -> unit
Protected Overridable Sub Paint (graphics As Graphics, clipBounds As Rectangle, cellBounds As Rectangle, rowIndex As Integer, cellState As DataGridViewElementStates, value As Object, formattedValue As Object, errorText As String, cellStyle As DataGridViewCellStyle, advancedBorderStyle As DataGridViewAdvancedBorderStyle, paintParts As DataGridViewPaintParts)
- graphics
- Graphics
The Graphics used to paint the DataGridViewCell.
- clipBounds
- Rectangle
A Rectangle that represents the area of the DataGridView that needs to be repainted.
- cellBounds
- Rectangle
A Rectangle that contains the bounds of the DataGridViewCell that is being painted.
- rowIndex
- Int32
The row index of the cell that is being painted.
- cellState
- DataGridViewElementStates
A bitwise combination of DataGridViewElementStates values that specifies the state of the cell.
- value
- Object
The data of the DataGridViewCell that is being painted.
- formattedValue
- Object
The formatted data of the DataGridViewCell that is being painted.
- errorText
- String
An error message that is associated with the cell.
- cellStyle
- DataGridViewCellStyle
A DataGridViewCellStyle that contains formatting and style information about the cell.
- advancedBorderStyle
- DataGridViewAdvancedBorderStyle
A DataGridViewAdvancedBorderStyle that contains border styles for the cell that is being painted.
- paintParts
- DataGridViewPaintParts
A bitwise combination of the DataGridViewPaintParts values that specifies which parts of the cell need to be painted.
The following code example demonstrates how to override the Paint method of a DataGridViewButtonCell. This code example is part of a larger example provided in How to: Disable Buttons in a Button Column in the Windows Forms DataGridView Control.
protected override void Paint(Graphics graphics,
Rectangle clipBounds, Rectangle cellBounds, int rowIndex,
DataGridViewElementStates elementState, object value,
object formattedValue, string errorText,
DataGridViewCellStyle cellStyle,
DataGridViewAdvancedBorderStyle advancedBorderStyle,
DataGridViewPaintParts paintParts)
{
// The button cell is disabled, so paint the border,
// background, and disabled button for the cell.
if (!this.enabledValue)
{
// Draw the cell background, if specified.
if ((paintParts & DataGridViewPaintParts.Background) ==
DataGridViewPaintParts.Background)
{
SolidBrush cellBackground =
new SolidBrush(cellStyle.BackColor);
graphics.FillRectangle(cellBackground, cellBounds);
cellBackground.Dispose();
}
// Draw the cell borders, if specified.
if ((paintParts & DataGridViewPaintParts.Border) ==
DataGridViewPaintParts.Border)
{
PaintBorder(graphics, clipBounds, cellBounds, cellStyle,
advancedBorderStyle);
}
// Calculate the area in which to draw the button.
Rectangle buttonArea = cellBounds;
Rectangle buttonAdjustment =
this.BorderWidths(advancedBorderStyle);
buttonArea.X += buttonAdjustment.X;
buttonArea.Y += buttonAdjustment.Y;
buttonArea.Height -= buttonAdjustment.Height;
buttonArea.Width -= buttonAdjustment.Width;
// Draw the disabled button.
ButtonRenderer.DrawButton(graphics, buttonArea,
PushButtonState.Disabled);
// Draw the disabled button text.
if (this.FormattedValue is String)
{
TextRenderer.DrawText(graphics,
(string)this.FormattedValue,
this.DataGridView.Font,
buttonArea, SystemColors.GrayText);
}
}
else
{
// The button cell is enabled, so let the base class
// handle the painting.
base.Paint(graphics, clipBounds, cellBounds, rowIndex,
elementState, value, formattedValue, errorText,
cellStyle, advancedBorderStyle, paintParts);
}
}
Protected Overrides Sub Paint(ByVal graphics As Graphics, _
ByVal clipBounds As Rectangle, ByVal cellBounds As Rectangle, _
ByVal rowIndex As Integer, _
ByVal elementState As DataGridViewElementStates, _
ByVal value As Object, ByVal formattedValue As Object, _
ByVal errorText As String, _
ByVal cellStyle As DataGridViewCellStyle, _
ByVal advancedBorderStyle As DataGridViewAdvancedBorderStyle, _
ByVal paintParts As DataGridViewPaintParts)
' The button cell is disabled, so paint the border,
' background, and disabled button for the cell.
If Not Me.enabledValue Then
' Draw the background of the cell, if specified.
If (paintParts And DataGridViewPaintParts.Background) = _
DataGridViewPaintParts.Background Then
Dim cellBackground As New SolidBrush(cellStyle.BackColor)
graphics.FillRectangle(cellBackground, cellBounds)
cellBackground.Dispose()
End If
' Draw the cell borders, if specified.
If (paintParts And DataGridViewPaintParts.Border) = _
DataGridViewPaintParts.Border Then
PaintBorder(graphics, clipBounds, cellBounds, cellStyle, _
advancedBorderStyle)
End If
' Calculate the area in which to draw the button.
Dim buttonArea As Rectangle = cellBounds
Dim buttonAdjustment As Rectangle = _
Me.BorderWidths(advancedBorderStyle)
buttonArea.X += buttonAdjustment.X
buttonArea.Y += buttonAdjustment.Y
buttonArea.Height -= buttonAdjustment.Height
buttonArea.Width -= buttonAdjustment.Width
' Draw the disabled button.
ButtonRenderer.DrawButton(graphics, buttonArea, _
PushButtonState.Disabled)
' Draw the disabled button text.
If TypeOf Me.FormattedValue Is String Then
TextRenderer.DrawText(graphics, CStr(Me.FormattedValue), _
Me.DataGridView.Font, buttonArea, SystemColors.GrayText)
End If
Else
' The button cell is enabled, so let the base class
' handle the painting.
MyBase.Paint(graphics, clipBounds, cellBounds, rowIndex, _
elementState, value, formattedValue, errorText, _
cellStyle, advancedBorderStyle, paintParts)
End If
End Sub
Προϊόν | Εκδόσεις |
---|---|
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
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