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How do I hide a row?

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GridView
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Kennet
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Kennet asked on 15 Jul 2010, 05:46 PM
I try to hide a row that have a specific status, When I do like the code below. the row is not shown, but there is space left "blank" in the grid where the row should be. I also tested with Height=0

private void radGrid_RowLoaded(object sender, RowLoadedEventArgs e)
{
    GridViewRow row = e.Row as GridViewRow;
    if (row != null)
    {
                 
        MyClass _MyClass = row.DataContext as MyClass;
        if (row != null && _MyClass != null)
        {
            row.IsExpandable = _MyClass.Category.Equals(5);
        }
        else
        {
            row.IsExpandable = false;
        }
 
        if (_MyClass.MediaCategory.Equals(5) && _MyClass.Status.Equals(-1))
        {
           row.Visibility = System.Windows.Visibility.Collapsed;
        }
     }
}

Any suggestions?

/Ken

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Yavor Georgiev
Telerik team
answered on 16 Jul 2010, 10:20 AM
Hello Kennet,

 In this scenario it is best to use filtering. Here's how you can do what you want in XAML:

<telerik:RadGridView ...>
    <telerik:RadGridView.FilterDescriptors>
        <telerik:CompositeFilterDescriptor LogicalOperator="Or">
            <telerik:CompositeFilterDescriptor.FilterDescriptors>
                <telerik:FilterDescriptor Member="Status" Operator="IsNotEqualTo" Value="5"/>
                <telerik:FilterDescriptor Member="Status" Operator="IsNotEqualTo" Value="-1"/>
            </telerik:CompositeFilterDescriptor.FilterDescriptors>
        </telerik:CompositeFilterDescriptor>
    </telerik:RadGridView.FilterDescriptors>
</telerik:RadGridView>

Kind regards,
Yavor Georgiev
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Kennet
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answered on 16 Jul 2010, 01:01 PM
That is not working for me, and I need to have "IsFilteringAllowed=False" on the RadGrid.

Is there any other way to do it? I prefere with C# code.

/Ken
0
Yavor Georgiev
Telerik team
answered on 16 Jul 2010, 01:10 PM
Hello Kennet,

 Unfortunately, you cannot modify the visibility of a GridViewRow, because that would seriously tamper with virtualziation.

The IsFilteringAllowed property controls whether users can filter the grid via the filtering icon in GridViewHeaderCell. The approach I have suggested still works with this property set to false.

Could you please send me your application so I can see why the filtering does not work?

Greetings,
Yavor Georgiev
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Kennet
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answered on 16 Jul 2010, 01:20 PM
Hi Yavor,

Good to hear that filter works without flags visible in header.

I can't send you my project since it a part of a big project, I will try to take the time to make a mackup on just this function.

How Can I do the filtering by code?

/Ken
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Accepted
Pavel Pavlov
Telerik team
answered on 16 Jul 2010, 01:41 PM
Hello Kennet,

You can learn more about programatic filtering here.

Sincerely yours,
Pavel Pavlov
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Kennet
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Yavor Georgiev
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Kennet
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Pavel Pavlov
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