DataGridViewCellPaintingEventArgs.Value Property
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Gets the value of the current DataGridViewCell.
public:
property System::Object ^ Value { System::Object ^ get(); };
C#
public object Value { get; }
C#
public object? Value { get; }
member this.Value : obj
Public ReadOnly Property Value As Object
The value of the current DataGridViewCell.
The following code example demonstrates the use of this member.
C#
private void dataGridView1_CellPainting(object sender,
System.Windows.Forms.DataGridViewCellPaintingEventArgs e)
{
if (this.dataGridView1.Columns["ContactName"].Index ==
e.ColumnIndex && e.RowIndex >= 0)
{
Rectangle newRect = new Rectangle(e.CellBounds.X + 1,
e.CellBounds.Y + 1, e.CellBounds.Width - 4,
e.CellBounds.Height - 4);
using (
Brush gridBrush = new SolidBrush(this.dataGridView1.GridColor),
backColorBrush = new SolidBrush(e.CellStyle.BackColor))
{
using (Pen gridLinePen = new Pen(gridBrush))
{
// Erase the cell.
e.Graphics.FillRectangle(backColorBrush, e.CellBounds);
// Draw the grid lines (only the right and bottom lines;
// DataGridView takes care of the others).
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left,
e.CellBounds.Bottom - 1, e.CellBounds.Right - 1,
e.CellBounds.Bottom - 1);
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1,
e.CellBounds.Top, e.CellBounds.Right - 1,
e.CellBounds.Bottom);
// Draw the inset highlight box.
e.Graphics.DrawRectangle(Pens.Blue, newRect);
// Draw the text content of the cell, ignoring alignment.
if (e.Value != null)
{
e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,
Brushes.Crimson, e.CellBounds.X + 2,
e.CellBounds.Y + 2, StringFormat.GenericDefault);
}
e.Handled = true;
}
}
}
}
Private Sub dataGridView1_CellPainting(ByVal sender As Object, _
ByVal e As System.Windows.Forms.DataGridViewCellPaintingEventArgs) _
Handles dataGridView1.CellPainting
If Me.dataGridView1.Columns("ContactName").Index = _
e.ColumnIndex AndAlso e.RowIndex >= 0 Then
Dim newRect As New Rectangle(e.CellBounds.X + 1, e.CellBounds.Y + 1, _
e.CellBounds.Width - 4, e.CellBounds.Height - 4)
Dim backColorBrush As New SolidBrush(e.CellStyle.BackColor)
Dim gridBrush As New SolidBrush(Me.dataGridView1.GridColor)
Dim gridLinePen As New Pen(gridBrush)
Try
' Erase the cell.
e.Graphics.FillRectangle(backColorBrush, e.CellBounds)
' Draw the grid lines (only the right and bottom lines;
' DataGridView takes care of the others).
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, _
e.CellBounds.Bottom - 1, e.CellBounds.Right - 1, _
e.CellBounds.Bottom - 1)
e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1, _
e.CellBounds.Top, e.CellBounds.Right - 1, _
e.CellBounds.Bottom)
' Draw the inset highlight box.
e.Graphics.DrawRectangle(Pens.Blue, newRect)
' Draw the text content of the cell, ignoring alignment.
If (e.Value IsNot Nothing) Then
e.Graphics.DrawString(CStr(e.Value), e.CellStyle.Font, _
Brushes.Crimson, e.CellBounds.X + 2, e.CellBounds.Y + 2, _
StringFormat.GenericDefault)
End If
e.Handled = True
Finally
gridLinePen.Dispose()
gridBrush.Dispose()
backColorBrush.Dispose()
End Try
End If
End Sub
The Value property contains the value of the cell before any formatting occurs.
Termék | Verziók |
---|---|
.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, 10 |
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