Hi, 

Thats b/c you don't have an EditorTemplate defined for your DepartmentID column, so the columns is not editable. 

-SteveZ

Hi here is my xaml for this case:

<ig:XamGrid ItemsSource="{Binding EmployeeDepartments}" AutoGenerateColumns="false" CellEnteredEditMode="XamGrid_CellEnteredEditMode">
<ig:XamGrid.EditingSettings>
    <ig:EditingSettings AllowEditing="Row" IsMouseActionEditingEnabled="DoubleClick" IsEnterKeyEditingEnabled="True" IsF2EditingEnabled="True" IsOnCellActiveEditingEnabled="False" />
</ig:XamGrid.EditingSettings>
<ig:XamGrid.Columns>
    <ig:TemplateColumn Key="PrimaryInd"   >       
        <ig:TemplateColumn.HeaderTemplate>
            <DataTemplate>
                <TextBlock  Text="{Binding ghPrimaryInd, Source={StaticResource localizedStrings}}" HorizontalAlignment="Center" />
            </DataTemplate>
        </ig:TemplateColumn.HeaderTemplate>
        <ig:TemplateColumn.ItemTemplate>
            <DataTemplate>
                <RadioButton IsChecked="{Binding PrimaryInd,Mode=TwoWay}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </DataTemplate>
        </ig:TemplateColumn.ItemTemplate>
    </ig:TemplateColumn>
    <ig:TemplateColumn Key="DepartmentID"   >
        <ig:TemplateColumn.HeaderTemplate>
            <DataTemplate>
                <TextBlock  Text="{Binding ghDepartment, Source={StaticResource localizedStrings}}" HorizontalAlignment="Center" />
            </DataTemplate>
        </ig:TemplateColumn.HeaderTemplate>
        <ig:TemplateColumn.ItemTemplate>
            <DataTemplate>
                <ComboBox x:Name="TheDepartments" DisplayMemberPath="DepartmentName"   />
            </DataTemplate>
        </ig:TemplateColumn.ItemTemplate>
    </ig:TemplateColumn>
    <ig:TextColumn Key="Department.DepartmentName"   >
        <ig:TextColumn.HeaderTemplate>
            <DataTemplate>
                <TextBlock  Text="{Binding ghDepartment, Source={StaticResource localizedStrings}}" HorizontalAlignment="Center" />
            </DataTemplate>
        </ig:TextColumn.HeaderTemplate>
    </ig:TextColumn> 
</ig:XamGrid.Columns>
</ig:XamGrid>

here is the code as you suggested:

private void XamGrid_CellEnteredEditMode(object sender, Infragistics.Controls.Grids.EditingCellEventArgs e)
        {
            if (e.Cell.Column.Key == "DepartmentID")
            {
                ((ComboBox)e.Editor).ItemsSource = ((MyViewModel)this.DataContext).Departments;
            }
        }

When debugging the app, (e.Cell.Column.Key == "DepartmentID") never happened. Double click on the column for combobox, even not trigger above event CellEnteredEditMode.

Hi, 

I'm not sure what you're asking. 

All columns thats are editable, support double click editing. (Note you need to make sure that on your Editing settings you have MouseClickAction set to double, however that is the default)

Also, for TemplateColumns and UnboundColumns, they are editiable if and only if you have the EditorTemplate set. 

Could you be more specific with your case and the problem you're running into?

-SteveZ

Hi,

If use CellEnteredEditModeevent, this event will be triggered by double click on any editable cell like TextBox, but above templateCoulmn not support double click event to enter Edit Mode.

How to resolve this problem?

Hi Shahzad, 

The CellEnteredEditMode event fires for each cell in view on the Add New Row. 

So the same approach will work. 

-SteveZ