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How to bind values to a radtreelistviewgrid column in runtime

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Chocks
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Chocks asked on 09 Aug 2012, 09:22 AM
Hi All, I am using Telerik Radtreelistview grid. I have a Checkbox in the screen "Display Code"
I am assigning the Itemsource to the grid as below mlist.ItemsSource = e.Result.objPrbListView.MasterList; Now the grid is populated.  
In my Grid I have a column to display code or text with Header like "Code / Text" Based on the checkbox select and unselect I have to display Code or Text in grid column. I will be having both Code and Text in serparately in the observable collection.  How can I bind values to that column based on the checkbox click.  Thanks for any suggestion to code this.
Regards, V.Chocks. 

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Vlad
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answered on 09 Aug 2012, 11:03 AM
Hello,

 Have you tried to define custom CellTemplate for this column or IValueConverter for the DataMemberBinding where you can place your logic?

All the best,
Vlad
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Chocks
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answered on 10 Aug 2012, 05:39 AM
Hi,

I browsed some samples in forum, but I am not sure that matches this requirement.

The below Name TextBlock is existing
<TextBlock Grid.Column="3" Text="{Binding Name}" VerticalAlignment="Center" x:Name="txtName" TextWrapping="Wrap"/>

now added the below Code TextBlock in XAML. Both TextBlock are in same GridColum.
<TextBlock Grid.Column="3" Text="{Binding Code}" VerticalAlignment="Center" x:Name="txtCode" TextWrapping="Wrap"/>

Is it possible to make any one visible based on the CheckBox Click.
Thanks for any code and suggesstions.


Regards,
V.Chocks.
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Vlad
Telerik team
answered on 10 Aug 2012, 06:14 AM
Hello,

 Indeed you can bind the IsCheckec property of the CheckBox to a property in your view-model and you can bind any component Visibility to your view-model property using BooleanToVisibilityConverter.

All the best,
Vlad
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Chocks
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answered on 10 Aug 2012, 07:16 AM
Hi Vlad

Actually the checkbox is not inside the grid, it is place separately above the grid.
Is it possible, that i could do this by using Linq or any other binding method which would not affect the performance and change the value in the column. Give any sample code if available. I think I can't implement View Model type, because I dont have 
separate folders for View and Model.

I tried something like below, but it seams, it will affect performance, It will be helpful, If i am resolving this by any binding or any other Linq update queries.

 ObservableCollection<PList> lstPrb = mlist.ItemsSource as ObservableCollection<PList>;
            foreach (PList list in lstPrb)
            {
                if (chkDisplayFreeorCodedText.IsChecked.Value)
                {
                    list.PrbName = list.FreeText;
                }
                else
                {
                    list.PrbName =  list.Code ;
                }
                
            }

Thanks,
V.Chocks.
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Chocks
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answered on 13 Aug 2012, 04:24 AM

Hi,

The below is working fine when the checkbox is selected, is there any way to check for the Unchecked property to bind.
I trid by giving !IsChecked as in 2nd TextBlock., it doesnt work. Thanks for any codes.

<TextBlock Grid.Column="3" Text="{Binding FText}" Visibility="{Binding IsChecked, ElementName=chkDisplayFText}" ></TextBlock>
<TextBlock Grid.Column="3" Text="{Binding CText}" Visibility="{Binding !IsChecked, ElementName=chkDisplayFText}" ></TextBlock> 



Thanks,
V.Chocks.
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