CODEWITHSUNDEEP
c#wpfdatagrid
pivutali
pivutali

Reputation: 161

How to remove selection to all DataGrids?

I've a StackPanel that contains three different DataGrid, this is the structure:

<StackPanel orientation="Vertical" x:Name="DataGridContainer">
    <DataGrid />
    <DataGrid />
    <DataGrid />
</StackPanel>

each DataGrid bind a different ItemSource, and each DataGrid bound the same SelectionChanged event.

What I need to do is remove the Selection from all the DataGrid, except on the clicked one.

Suppose that the SelectionChanged event is this:

private void DataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    /*
       1. Get the DataGrid selected by the user
       2. Get all the DataGrids contained in DataGridContainer
       3. Iterate over all controls and remove the selection except for the DataGrid saved on the step1
    */
}

how can I get all the DataGrid of DataGridContainer and apply this logic?

UPDATE

What I tried:

var datagrid = (DataGrid)sender;
var datagridList = DataGridContainer.Children.OfType<DataGrid>();

foreach(var dt in datagridList)
{
    if(dt != datagrid)
    {
         dt.UnselectAll();
    }
}

doesn't seems to working, the datagridList is empty

Thanks for any help.

Upvotes: 0

Views: 38

Answers (1)

mm8
mm8

Reputation: 169150

UnselectAll() triggers a new SelectionChanged event. Try this:

<StackPanel Orientation="Vertical" x:Name="DataGridContainer"
            DataGrid.SelectionChanged="DataGridContainer_SelectionChanged"
            xmlns:s="clr-namespace:System;assembly=mscorlib">
    <DataGrid>
        <DataGrid.Columns>
            <DataGridTextColumn Binding="{Binding}" />
        </DataGrid.Columns>
        <s:String>A</s:String>
        <s:String>A</s:String>
        <s:String>A</s:String>
    </DataGrid>
    <DataGrid>
        <DataGrid.Columns>
            <DataGridTextColumn Binding="{Binding}" />
        </DataGrid.Columns>
        <s:String>B</s:String>
        <s:String>B</s:String>
        <s:String>B</s:String>
    </DataGrid>
    <DataGrid>
        <DataGrid.Columns>
            <DataGridTextColumn Binding="{Binding}" />
        </DataGrid.Columns>
        <s:String>C</s:String>
        <s:String>C</s:String>
        <s:String>C</s:String>
    </DataGrid>
</StackPanel>

private bool _handle = true;
private void DataGridContainer_SelectionChanged(object sender, RoutedEventArgs e)
{
    if (_handle)
    {
        var datagrid = e.OriginalSource as DataGrid;
        if (datagrid != null)
        {
            var datagridList = DataGridContainer.Children.OfType<DataGrid>();
            foreach (var dt in datagridList)
            {
                if (dt != datagrid)
                {
                    _handle = false;
                    dt.UnselectAll();
                    _handle = true;
                }
            }
        }
    }
}

Upvotes: 1

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