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RadGrid created from code-behind not triggering filter postbacks
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This is a migrated thread and some comments may be shown as answers.
Amod
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Amod asked on 15 Jan 2016, 05:30 AM

Hi,

I have a radgrid built completely from code-behind as a server-control. I am trying to add column filters to some of its columns. When I set the properties required for filtering (AllowFilteringByColumn on the grid) I see the filters on the columns. I then create the columns in code-behind - set the filter properties on them - and add it to the grid's column collection. When I type text in the filter column and press Enter the page/grid doesn't postback. Nothing happens. What am I missing in the below code?

The constructor that initializes the control
public RadGridOpportunity()
{
    this.ID = "grdOpportunity";
    this.MasterTableView.AutoGenerateColumns = false;
    this.MasterTableView.DataKeyNames = new string[] { "ID" };
    this.MasterTableView.Columns.Add(ColStatus());
    this.MasterTableView.HierarchyLoadMode = GridChildLoadMode.ServerBind;
    this.MasterTableView.NoRecordsTemplate = new TemplateNoRecords();
    this.ItemCommand += RadGridOpportunity_ItemCommand;           
    this.ItemCreated += RadGridOpportunity_ItemCreated;
    this.MasterTableView.NestedViewTemplate = new TemplateNestedView();
    this.NeedDataSource += RadGridOpportunity_NeedDataSource;
 
    //filtering
    this.AllowFilteringByColumn = true;
    this.MasterTableView.AllowFilteringByColumn = true;
}

 The column that is built and added to the columns collection-

protected GridColumn ColStatus()
{
    GridBoundColumn col = new GridBoundColumn();
    col.HeaderText = "Status";
    col.DataField = "Status";
    col.CurrentFilterFunction = GridKnownFunction.Contains;
    col.ShowFilterIcon = false;
    col.AutoPostBackOnFilter = true;
    col.DataType = Type.GetType("System.String");
    return col;
}

 

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Viktor Tachev
Telerik team
answered on 19 Jan 2016, 01:08 PM
Hi Amod,

What event are you using to create the RadGrid control?

I tested the behavior with the RadGrid created in Page_Init and the filtering is working as expected on my end. Check out the attached sample for illustration.



Regards,
Viktor Tachev
Telerik
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Amod
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answered on 19 Jan 2016, 05:17 PM

Hi Viktor,

Thanks for your reply. Your sample works. I have the below hierarchy on the page.

++Page

++++RadTabStrip

++++++RadMultipage.RadPagView

++++++++PlaceHolder

++++++++++Dynamic RadGrid.

I am injecting the grid in the placeholder at runtime. If I remove the above hierarchy and inject the grid directly on the page it works. Otherwise it doesn't. The grid is initialized in the RadTabStrip's init event. Am I missing something here?

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Viktor Tachev
Telerik team
answered on 22 Jan 2016, 10:59 AM
Hello Amod,

Try to use the Init event of the RadMultiPage control and see how the behavior changes. I tested the behavior and it is working as expected on my end. Check out the attached sample as reference.


Regards,
Viktor Tachev
Telerik
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Viktor Tachev
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Amod
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