DataGridViewCell.BorderWidths(DataGridViewAdvancedBorderStyle) 方法

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

傳回 Rectangle，表示所有儲存格邊界的寬度。

protected:
 virtual System::Drawing::Rectangle BorderWidths(System::Windows::Forms::DataGridViewAdvancedBorderStyle ^ advancedBorderStyle);

protected virtual System.Drawing.Rectangle BorderWidths (System.Windows.Forms.DataGridViewAdvancedBorderStyle advancedBorderStyle);

abstract member BorderWidths : System.Windows.Forms.DataGridViewAdvancedBorderStyle -> System.Drawing.Rectangle
override this.BorderWidths : System.Windows.Forms.DataGridViewAdvancedBorderStyle -> System.Drawing.Rectangle

Protected Overridable Function BorderWidths (advancedBorderStyle As DataGridViewAdvancedBorderStyle) As Rectangle

參數

advancedBorderStyle

DataGridViewAdvancedBorderStyle

DataGridViewAdvancedBorderStyle，要為它計算邊界。

傳回

Rectangle

Rectangle，表示所有儲存格邊界的寬度。

範例

下列程式碼範例示範如何使用 BorderWidths 類別的 DataGridViewCell 方法來判斷儲存格中的可用繪圖區域。 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

備註

儲存格框線的預設寬度是一個圖元。 使用下列 DataGridViewAdvancedCellBorderStyle 值來修改框線的寬度：

• 值 None 表示寬度為 0 圖元。

• 或 InsetDouble 值會將 OutsetDouble 預設寬度增加 1 圖元。

此外，如果為 DividerHeight 儲存格的擁有資料列設定 屬性，則矩形的高度會以 的值 DividerHeight 來增加。 如果已 DividerWidth 為儲存格擁有的資料行設定 屬性，矩形的寬度將會隨著 的值 DividerWidth 而增加。

另請參閱

• DataGridView
• DataGridViewCellBorderStyle
• DataGridViewAdvancedCellBorderStyle