DataGridViewPaintParts 枚举
重要
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定义用于指定要绘制的 DataGridViewCell 部分的值。
此枚举支持其成员值的按位组合。
public enum class DataGridViewPaintPartsC#
[System.Flags]
public enum DataGridViewPaintParts[<System.Flags>]
type DataGridViewPaintParts = Public Enum DataGridViewPaintParts- 继承
- 属性
| 名称 | 值 | 说明 |
|---|---|---|
| All | 127 | 应绘制单元格的所有部分。 |
| Background | 1 | 应绘制单元格的背景。 |
| Border | 2 | 应绘制单元格的边框。 |
| ContentBackground | 4 | 应绘制单元格内容的背景。 |
| ContentForeground | 8 | 应绘制单元格内容的前景。 |
| ErrorIcon | 16 | 应绘制单元格错误图标。 |
| Focus | 32 | 应当在单元格周围绘制聚焦框。 |
| None | 0 | 不应绘制任何内容。 |
| SelectionBackground | 64 | 当选择该单元格时，应绘制该单元格的背景。 |
下面的代码示例演示了此类型的用法。 此示例是How to： Customize the Appearance of Rows in the Windows 窗体 DataGridView 控件中提供的更大示例的一部分。
C#
// Paints the custom selection background for selected rows.
void dataGridView1_RowPrePaint(object sender,
DataGridViewRowPrePaintEventArgs e)
{
// Do not automatically paint the focus rectangle.
e.PaintParts &= ~DataGridViewPaintParts.Focus;
// Determine whether the cell should be painted
// with the custom selection background.
if ((e.State & DataGridViewElementStates.Selected) ==
DataGridViewElementStates.Selected)
{
// Calculate the bounds of the row.
Rectangle rowBounds = new Rectangle(
this.dataGridView1.RowHeadersWidth, e.RowBounds.Top,
this.dataGridView1.Columns.GetColumnsWidth(
DataGridViewElementStates.Visible) -
this.dataGridView1.HorizontalScrollingOffset + 1,
e.RowBounds.Height);
// Paint the custom selection background.
using (Brush backbrush =
new System.Drawing.Drawing2D.LinearGradientBrush(rowBounds,
this.dataGridView1.DefaultCellStyle.SelectionBackColor,
e.InheritedRowStyle.ForeColor,
System.Drawing.Drawing2D.LinearGradientMode.Horizontal))
{
e.Graphics.FillRectangle(backbrush, rowBounds);
}
}
}
' Paints the custom selection background for selected rows.
Sub dataGridView1_RowPrePaint(ByVal sender As Object, _
ByVal e As DataGridViewRowPrePaintEventArgs) _
Handles dataGridView1.RowPrePaint
' Do not automatically paint the focus rectangle.
e.PaintParts = e.PaintParts And Not DataGridViewPaintParts.Focus
' Determine whether the cell should be painted with the
' custom selection background.
If (e.State And DataGridViewElementStates.Selected) = _
DataGridViewElementStates.Selected Then
' Calculate the bounds of the row.
Dim rowBounds As New Rectangle( _
Me.dataGridView1.RowHeadersWidth, e.RowBounds.Top, _
Me.dataGridView1.Columns.GetColumnsWidth( _
DataGridViewElementStates.Visible) - _
Me.dataGridView1.HorizontalScrollingOffset + 1, _
e.RowBounds.Height)
' Paint the custom selection background.
Dim backbrush As New _
System.Drawing.Drawing2D.LinearGradientBrush(rowBounds, _
Me.dataGridView1.DefaultCellStyle.SelectionBackColor, _
e.InheritedRowStyle.ForeColor, _
System.Drawing.Drawing2D.LinearGradientMode.Horizontal)
Try
e.Graphics.FillRectangle(backbrush, rowBounds)
Finally
backbrush.Dispose()
End Try
End If
End Sub
此枚举由受保护的 DataGridViewCell.Paint 方法和控件的 CellPainting、 RowPrePaint和 RowPostPaint 事件的 DataGridView 处理程序使用。
| 产品 | 版本 |
|---|---|
| .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 |
