Edit Datagrid combobox or textbox

Question

I have a datagrid and I want the users to be able to edit the values in one of the columns. However depending on the value in another column I either need to have them enter the values in a textbox (other column value = 0) or pick a value from a combobox (other column value > 00) that I will populate from a Dictionary.

How would I do something like this?

Answer 1

You can define the TemplateColumn for your DataGrid and define its CellTemplate as below:

 <DataGrid>
        <DataGrid.Columns>
            <DataGridTemplateColumn>
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <ContentControl x:Name="ContentPlaceholder">
                            <ContentControl.Style>
                                <Style TargetType="{x:Type ContentControl}">
                                    <Setter Property="ContentTemplate">
                                        <Setter.Value>
                                            <DataTemplate>
                                                <ComboBox />
                                            </DataTemplate>
                                        </Setter.Value>
                                    </Setter>
                                    <Style.Triggers>
                                        <DataTrigger Binding="{Binding COLUMNTWOPROPERTY}" Value="0">
                                            <Setter Property="ContentTemplate">
                                                <Setter.Value>
                                                    <DataTemplate>
                                                        <TextBox Text="{Binding PROPERTYFORTEXTBOX}"/>
                                                    </DataTemplate>
                                                </Setter.Value>
                                            </Setter>
                                        </DataTrigger>
                                    </Style.Triggers>
                                </Style>
                            </ContentControl.Style>
                        </ContentControl>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>
    </DataGrid>

Here COLUMNTWOPROPERTY is the value which decides whether cell should show textbox or combobox.

Thanks