共用方式為


DataGridViewCell.Paint 方法

定義

繪製目前的 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);
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)

參數

graphics
Graphics

用來繪製 DataGridViewCellGraphics

clipBounds
Rectangle

Rectangle,代表需要重新繪製的 DataGridView 區域。

cellBounds
Rectangle

Rectangle,包含要繪製 DataGridViewCell 的界限。

rowIndex
Int32

正在繪製的儲存格資料列索引。

cellState
DataGridViewElementStates

DataGridViewElementStates 值的位元組合,指定儲存格的狀態。

value
Object

正在繪製之 DataGridViewCell 的資料。

formattedValue
Object

正在繪製之DataGridViewCell 的格式化資料。

errorText
String

與儲存格關聯的錯誤訊息。

cellStyle
DataGridViewCellStyle

DataGridViewCellStyle,其中包含有關儲存格的格式化和樣式資訊。

advancedBorderStyle
DataGridViewAdvancedBorderStyle

DataGridViewAdvancedBorderStyle,包含正在繪製之儲存格的邊框樣式。

paintParts
DataGridViewPaintParts

DataGridViewPaintParts 值的位元組合,指定儲存格需要繪製的部分。

範例

下列程式碼範例示範如何覆寫 PaintDataGridViewButtonCell 方法。 此程式碼範例是How to: Disable Buttons in a Button Column in the Windows Forms DataGridView Control中提供之較大範例的一部分。

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

適用於

另請參閱