CODEWITHSUNDEEP
wpfvb.netdatagrid
xcrookedxedge
xcrookedxedge

Reputation: 51

PreviewMouseLeftButtonUp doesn't work with Items in the DataGrid

iI'm working on a program which should change the checkbox state by clicking on it.

I used a "PreviewMouseLeftButtonUp" Event. The Problem is that, it doesn't get called when i press on an item. It only get called if i click on an empty place in the Datagrid.

Code:

    Private Sub BefundePat1_PreviewMouseLeftButtonUp(sender As Object, e As MouseButtonEventArgs) Handles BefundePat1.PreviewMouseLeftButtonUp

    Dim cell As DataGridCell = getGridCell(e.OriginalSource)
    If Not cell Is Nothing Then
        If BefundePat1.Columns(BefundePat1.Columns.Count - 1) Is cell.Column Then
            If TypeOf cell.DataContext Is DataRowView Then
                Dim dr As DataRowView = cell.DataContext
                If dr.Row.Item("NR_TAKE") = True Then
                    dr.Row.Item("NR_TAKE") = False
                Else
                    dr.Row.Item("NR_TAKE") = True
                End If
            End If
        End If
    End If

End Sub

Is it possible that it get distracted by the PreviewMouseLeftButtonDown Event i also have in the programm?

Kind Regards

Upvotes: 0

Views: 298

Answers (1)

mm8
mm8

Reputation: 169200

I am not sure what you are trying to do here but tou could try to define a CellStyle that raises the event for each DataGridCell. Remove Handles BefundePat1.PreviewMouseLeftButtonUp from your event handler and add the style in your XAML markup:

<DataGrid x:Name="BefundePat1" ...>
    <DataGrid.CellStyle>
        <Style TargetType="DataGridCell">
            <EventSetter Event="PreviewMouseLeftButtonUp" Handler="BefundePat1_PreviewMouseLeftButtonUp" />
        </Style>
    </DataGrid.CellStyle>
    ...
</DataGrid>

If this doesn't work, you could try handling the PreviewMouseLeftButtonDown event. Please clarify your requirements if you need any further help.

Upvotes: 1

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