How to select all checkbox in WPF datagrid

Question

my wpf data grid,

<dg:DataGrid.Columns >
    <dg:DataGridTemplateColumn>
        <dg:DataGridTemplateColumn.Header>
            <CheckBox Content=" Slect All" Click="CheckBox_Click" />
        </dg:DataGridTemplateColumn.Header>
        <dg:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <CheckBox Name="chkSelectAll"   Margin="45 2 0 0" Click="chkSelectAll_Click" />
            </DataTemplate>
        </dg:DataGridTemplateColumn.CellTemplate>
    </dg:DataGridTemplateColumn>
    <dg:DataGridTemplateColumn Header="Edit Row"  >
        <dg:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Button Content="Edit" Click="Button_Click" />
            </DataTemplate>
        </dg:DataGridTemplateColumn.CellTemplate>
    </dg:DataGridTemplateColumn>
    <dg:DataGridTemplateColumn Header="Delete Row">
        <dg:DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Button Content="Delete" Click="DeleteButton_Click" />
            </DataTemplate>
        </dg:DataGridTemplateColumn.CellTemplate>
    </dg:DataGridTemplateColumn>
</dg:DataGrid.Columns>

when you click on the "Select All" checkbox. I need to set all the checkboxes as selected / deselect. Can anyone help me do this. Also, one more thing, Dynamicaly I populate the data in a datgrid.

- thank

Answer 1

Bind the checkBox property to the checkBox heading with : IsChecked ElementName

<dg:DataGridTemplateColumn>
    <dg:DataGridTemplateColumn.Header>
        <CheckBox Content=" Slect All" x:Name="headerCheckBox" />
    </dg:DataGridTemplateColumn.Header>
    <dg:DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
            <CheckBox Name="chkSelectAll" Margin="45 2 0 0"
                      IsChecked="{Binding IsChecked, ElementName=headerCheckBox, 
                                          Mode=OneWay}" />
        </DataTemplate>
    </dg:DataGridTemplateColumn.CellTemplate>
</dg:DataGridTemplateColumn>