Hello,

could you tell me how do I change the header (see attachment) with a button click event.

I would like to change the font color or the background color

I did it myself header hinbekommen the micelles to change color with a button, but unfortunately I can not find the code for the group

with this code can i change the cell color

DataGridViewStatus.Rows(1).Cells(3).BackColor = Color.Red
this works fine


Please help me

In iGrid, the contents of group rows are stored in so called "row text cells". For a row, you can access it through the RowTextCell property instead of Cells like in your code:

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
DataGridViewStatus.Rows(1).RowTextCell.BackColor = Color.Blue
DataGridViewStatus.Rows(2).RowTextCell.BackColor = Color.Black
DataGridViewStatus.Rows(3).RowTextCell.BackColor = Color.Red




End Sub

Only the Rows(3) change the color of the header
But for all the header rows

I want each row header in a another color.

and the event is best with a click.

Unfortunately I can not find the command for each row header editing

(see the attachment)

Oops.. Sorry - my fault. I forgot that when iGrid creates group rows automatically, it assigns the same cell style object to all row text cells with the same hierarchy level. That's why in our code we actually change the background color for all group rows, and only the last setting has the effect.

A sidenote: These cell styles are retrieved from the GroupRowLevelStyles array property you can populate before grouping. By default, it has one item used in all group rows on all levels, but you can define a personal style for each level. This approach allows you to apply the same formatting to all group rows with the same level.

To do it the right way, we need to create a personal style object for every group row:


***********************

Note also that our .NET DataGridView also has the AfterAutoGroupRowCreated event you can use to apply formatting like this on-the-fly during the grouping process.

Hi this works great,

there is also a possibility the number of Grouped Rows read.

example

Grouped Row
under Row
under row
Grouped Row
under Row
Grouped Row
under row
under row

Grouped Rows are 3

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim i As Integer
Dim z As Integer
Dim b As Integer
i = 0


Do While i < DataGridViewStatus.Rows.Count
'MsgBox(DataGridViewStatus.Rows(i).Cells(0).Value)
'MsgBox(i)

For z = DataGridViewStatus.Cols.Count To 1 Step -1
b = z - 1
If DataGridViewStatus.Rows(i).Cells(b).Value.ToString = "IT" Then
MsgBox(i)
DataGridViewStatus.Rows(i).Cells(b).BackColor = Color.Yellow

DataGridViewStatus.Rows(i).RowTextCell.BackColor = Color.Blue (This works not only because, unfortunately, the value "IT" is always in the bottom row)


Exit For
ElseIf DataGridViewStatus.Rows(i).Cells(b).Value.ToString = "" Then
'DataGridViewStatus.Rows(i).Cells(0).Style.BackColor = Color.Green

End If
Next
i = i + 1
Loop




End Sub

It's not clear from your last post what you need to do, but it seems you are going to colorize group rows based on their contents (cell value). This can be done using the CellDynamicFormatting event. For instance, if you need to use the blue background color for group rows which display the "IT" value, your code might look like this:


P.S. If your cell values are strings, there is no need to convert them to string using the .ToString() method like you do in your code. Just read them through the Value property "as is".