Select all using Checkbox in datagrid header?

i have datagrid...i display all the values using binding....

Eg:

In that grid i have checkbox column...

IsChecked="{Binding Path = SelectedItem,

Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"/>

If i check the check box in datagrid header it need update all the check boxes in that column...

The behaviour is shown in picture

I got the answer:

If someone need in future they can use it...

XAML:

IsChecked="{Binding Path = SelectedItem,

Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"

PreviewMouseLeftButtonDown="CheckBox_PreviewMouseLeftButtonDown"/>

CS file:

private void chkSelectAll_Checked(object sender, RoutedEventArgs e)

{

foreach (SampleResult enty in ResultDataGrid.ItemsSource)

{

enty.SelectedItem = true;

}

private void chkSelectAll_Unchecked(object sender, RoutedEventArgs e)

{

foreach (SampleResult enty in ResultDataGrid.ItemsSource)

{

enty.SelectedItem = false;

}

private void chkSelectAll_Indeterminate(object sender, RoutedEventArgs e)

{

foreach (SampleResult enty in ResultDataGrid.ItemsSource)

{

enty.SelectedItem = null;

}

View model:

public bool? selectedItem;

public bool? SelectedItem

{

get

{

return selectedItem;

}

set

{

this.selectedItem = value;

OnPropertyChanged("SelectedItem");

}

Hope it helps anyone in future

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Praveen Gopal9y ago
I got the answer:
If someone need in future they can use it...

XAML:

IsChecked="{Binding Path = SelectedItem,
Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
PreviewMouseLeftButtonDown="CheckBox_PreviewMouseLeftButtonDown"/>

CS file:

private void chkSelectAll_Checked(object sender, RoutedEventArgs e)
{
foreach (SampleResult enty in ResultDataGrid.ItemsSource)
{
enty.SelectedItem = true;
}
}
private void chkSelectAll_Unchecked(object sender, RoutedEventArgs e)
{
foreach (SampleResult enty in ResultDataGrid.ItemsSource)
{
enty.SelectedItem = false;
}
}
private void chkSelectAll_Indeterminate(object sender, RoutedEventArgs e)
{
foreach (SampleResult enty in ResultDataGrid.ItemsSource)
{
enty.SelectedItem = null;
}
}

View model:

public bool? selectedItem;

public bool? SelectedItem
{
get
{
return selectedItem;
}
set
{
this.selectedItem = value;

OnPropertyChanged("SelectedItem");
}
}

Hope it helps anyone in future
Amit Gupta9y ago
Check the below link

http://www.c-sharpcorner.com/forums/wpf-grdiview-select-all-notworking

Hope it helps