我无法更改DataGridView cells
的前景色。我有多个运行时生成DataGridView
,我使用以下代码:
For Each tbp As TabPage In frmTimingP2P.tabctrlTimingTable.TabPages
For Each ctrl As Control In tbp.Controls
Dim dgv As DataGridView = TryCast(ctrl, DataGridView)
If Not dgv Is Nothing Then
For Each dc As DataGridViewColumn In dgv.Columns
If dc.Name.EndsWith("Gain/Loss") Then
For Each dr As DataGridViewRow In dgv.Rows
If Not dr.Cells(dc.Index).Value Is DBNull.Value Then
If dr.Cells(dc.Index).Value = 0 Then
dr.Cells(dc.Index).Style.ForeColor = Color.Blue
ElseIf dr.Cells(dc.Index).Value < 0 Then
dr.Cells(dc.Index).Style.ForeColor = Color.Red
ElseIf dr.Cells(dc.Index).Value > 0 Then
dr.Cells(dc.Index).Style.ForeColor = Color.Green
End If
End If
Next
End If
Next
dgv.Refresh()
End If
Next
Next
此代码仅适用于当前关注的DataGridView,但不适用于其他DataGridview
。
我修改了我的代码,现在提出以下内容:
Private Sub dgvOverview_CellFormatting(sender As Object, e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles dgvOverview.CellFormatting
Dim dgv As New DataGridView
dgv = sender
If dgv.Columns(e.ColumnIndex).Name.EndsWith("Gain/Loss") Then
If e.Value IsNot DBNull.Value Then
Dim intCellValue As Integer = CType(e.Value, Integer)
If intCellValue = 0 Then
e.CellStyle.ForeColor = Color.Blue
ElseIf intCellValue > 0 Then
e.CellStyle.ForeColor = Color.Green
ElseIf intCellValue < 0 Then
e.CellStyle.ForeColor = Color.Red
End If
End If
End If
End Sub
这一切都运作良好。谢谢你的帮助!
答案 0 :(得分:1)
更好的方法是处理DataGridView CellFormatting事件。有关详细信息,请参阅http://msdn.microsoft.com/cs-cz/library/system.windows.forms.datagridview.cellformatting.aspx。
答案 1 :(得分:0)
我为你做了一件小事......
For i As Integer = 0 To Me.dataGridView1.RowCount - 1
If Me.dataGridView(3, i).Value = 0 Then
Me.dataGridView(4, i).Style.BackColor = Color.Blue
End If
Next