Question

I’m using Infragistics Ultragrid 2008, I have a button used to check and uncheck the selected column in the grid.

Even if the row filter is activated also when I click the button it checks the hidden rows selected columns too.

I want to set selected column to true only for the rows that are visible. Please help me with the code for vb.net 2008

this is the code I’m using now

    Me.lbltotal.Text = "0.00"

    Dim i As Integer = 0

    Dim nDx As Boolean = False
    If Me.btnSelectAll.Text = "Select All" Then
        nDx = True
    Else
        nDx = False
    End If

    While i < Me.UninvoicedMemosDataGrid.Rows.Count

        Me.UninvoicedMemosDataGrid.Rows(i).Cells(9).Value = nDx
        Me.UninvoicedMemosDataGrid.PerformAction(Infragistics.Win.UltraWinGrid.UltraGridAction.ExitEditMode)
        Me.UninvoicedMemosDataGrid.Update()
        i += 1
    End While

    If Me.btnSelectAll.Text = "Select All" Then
        Me.btnSelectAll.Text = "Deselect All"
    Else
        Me.btnSelectAll.Text = "Select All"
    End If


    Dim r As Integer
    Dim sum As Single = 0.0
    For r = 0 To UninvoicedMemosDataGrid.Rows.Count - 1
       If UninvoicedMemosDataGrid.Rows(r).Cells(9).Value() = True Then sum += UninvoicedMemosDataGrid.Rows(r).Cells(8).Value()

        Me.lbltotal.Text = sum
    Next
    Dim n As Integer
    n = Me.lbltotal.Text
    lbltotal.Text = n.ToString("###,##0.00")

Answer 1

If your intention is to apply your calcs only for the rows not hidden by the current column filter then you should change your loops in this way

For each row in Me.UninvoicedMemosDataGrid.Rows.GetFilteredInNonGroupByRows()
    row.Cells(9).Value = nDx
Next
' Only one cell could be in edit mode, so this should go outside the loop '
row.PerformAction(Infragistics.Win.UltraWinGrid.UltraGridAction.ExitEditMode)
' same for data updating....'
Me.UninvoicedMemosDataGrid.Update()

and this one
(Based on your code above, this should be always true or false for every row)

For each row in UninvoicedMemosDataGrid.Rows.GetFilteredInNonGroupByRows()
   If row.Cells(9).Value() = True Then 
       sum += row.Cells(8).Value
   End if
Next
Me.lbltotal.Text = sum

However I am not very sure of your intention here. So let me know if this is what you are looking for or if I have misanderstood your intentions.