DataGridViewCell.PaintBorder Metoda

Definice

Obor názvů:

System.Windows.Forms

Sestavení:

System.Windows.Forms.dll

Maluje ohraničení aktuálního DataGridViewCell.

protected:
 virtual void PaintBorder(System::Drawing::Graphics ^ graphics, System::Drawing::Rectangle clipBounds, System::Drawing::Rectangle bounds, System::Windows::Forms::DataGridViewCellStyle ^ cellStyle, System::Windows::Forms::DataGridViewAdvancedBorderStyle ^ advancedBorderStyle);

protected virtual void PaintBorder (System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle bounds, System.Windows.Forms.DataGridViewCellStyle cellStyle, System.Windows.Forms.DataGridViewAdvancedBorderStyle advancedBorderStyle);

abstract member PaintBorder : System.Drawing.Graphics * System.Drawing.Rectangle * System.Drawing.Rectangle * System.Windows.Forms.DataGridViewCellStyle * System.Windows.Forms.DataGridViewAdvancedBorderStyle -> unit
override this.PaintBorder : System.Drawing.Graphics * System.Drawing.Rectangle * System.Drawing.Rectangle * System.Windows.Forms.DataGridViewCellStyle * System.Windows.Forms.DataGridViewAdvancedBorderStyle -> unit

Protected Overridable Sub PaintBorder (graphics As Graphics, clipBounds As Rectangle, bounds As Rectangle, cellStyle As DataGridViewCellStyle, advancedBorderStyle As DataGridViewAdvancedBorderStyle)

Parametry

graphics

Graphics

Použité Graphics k malování ohraničení.

clipBounds

Rectangle

A Rectangle , která představuje oblast DataGridView , kterou je potřeba překreslit.

bounds

Rectangle

A Rectangle obsahující oblast ohraničení, která se maluje.

cellStyle

DataGridViewCellStyle

A DataGridViewCellStyle obsahující informace o formátování a stylu aktuální buňky.

advancedBorderStyle

DataGridViewAdvancedBorderStyle

A DataGridViewAdvancedBorderStyle , který obsahuje styly ohraničení ohraničení, které se maluje.

Příklady

Následující příklad kódu znázorňuje použití této metody. Tento příklad je součástí většího příkladu, který je k dispozici v části Postupy: Zakázání tlačítek ve sloupci tlačítka v ovládacím prvku model Windows Forms DataGridView.

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

Viz také

• DataGridView
• Paint(Graphics, Rectangle, Rectangle, Int32, DataGridViewElementStates, Object, Object, String, DataGridViewCellStyle, DataGridViewAdvancedBorderStyle, DataGridViewPaintParts)
• Graphics
• Rectangle
• DataGridViewCellStyle
• DataGridViewAdvancedBorderStyle