VB.net Datagridview cellstyle colors

  • Thread starter Thread starter Steve
  • Start date Start date
S

Steve

Hi All

I am using VB.net 2005 professional

I set the background color of a datagridview cell to different colors
depending on many reasons

I set them in the cellformatting event and all works great, i.e the colors
appear as requested
e.g e.CellStyle.BackColor = Color.Red

When I try to read the color in Datagridview.mouseclick event using...
If
dgvgroup.Rows(hit.RowIndex).Cells(hit.ColumnIndex).InheritedStyle.BackColor
= mycolor Then

it always returns false

end if

Note: mycolor = color.salmonpink and actual grid cell color =
color.salmonpink

but
dgvgroup.Rows(hit.RowIndex).Cells(hit.ColumnIndex).InheritedStyle.BackColor
returns color.honeydew which is the defaultcellstyle.backcolor set in

datagridview properties defaultcellstyle in design environment

what am I doing wrong

Regards

Steve
 
Hi Steve,

When you set the DataGridViewCellFormattingEventArgs.CellStyle.BackColor in
the CellFormatting event handler, you don't change the corresponding cell's
Style.

The DataGridViewCell.InheritedStyle property inherits its value from a
hierarchy of properties of type DataGridViewCellStyle. These properties are
listed below in the order in which the InheritedStyle for non-header cells
obtains its values.

1. System.Windows.Forms.DataGridViewCell.Style
2. System.Windows.Forms.DataGridViewRow.DefaultCellStyle
3. System.Windows.Forms.DataGridView.AlternatingRowsDefaultCellStyle (only
for cells in rows with odd index numbers)
4. System.Windows.Forms.DataGridView.RowsDefaultCellStyle
5. System.Windows.Forms.DataGridViewColumn.DefaultCellStyle
6. System.Windows.Forms.DataGridView.DefaultCellStyle

That's why you get Color.Honeydew from the
'dgvgroup.Rows(hit.RowIndex).Cells(hit.ColumnIndex).InheritedStyle.BackColor
' because the DefaultCellStyle.BackColor is set to Color.Honeydew in your
practice.

If you modify your code as follows, you can get the actual color of the
cell through the InheritedStyle.BackColor property:

Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e
As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles
DataGridView1.CellFormatting
If (e.RowIndex = 0) Then

Me.DataGridView1.Rows(e.RowIndex).Cells(e.ColumnIndex).Style.BackColor =
Color.Red
End If
End Sub

For more information on cell styles in the DataGridView control, you may
refer to the following MSDN document:
'Cell Styles in the Windows Forms DataGridView Control'
http://msdn2.microsoft.com/en-us/library/1yef90x0(VS.80).aspx

Hope this helps.
If you have any question, please feel free to let me know.

Sincerely,
Linda Liu
Microsoft Online Community Support

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Hi Steve,

How about the problem now?

If you have any question, please feel free to let me know.

Thank you for using our MSDN Managed Newsgroup Support Sevice!

Sincerely,
Linda Liu
Microsoft Online Community Support
 
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