[Solved] RadGrid PageSizeChanged Event for Detail Tables

[Bryan Alfaro]

Forum,

I have been unable to find a solution for PageSizeChanged Event for Detail Tables.  The below two code snippets show the RadGrid PageSizeChanged event functionality for Master Table PageSizeChange event.  I am using this functionality for User Profile settings and need the Detail Tables.  Let me know if there is a solution for this issue...

<telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="edsValuation" GridLines="None"
        AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" AllowFilteringByColumn="true"
        OnPageSizeChanged="RadGrid1_PageSizeChanged"
        PagerStyle-AlwaysVisible="true">
</Format Code Block>

protected void RadGrid1_PageSizeChanged(object source, GridPageSizeChangedEventArgs e)
        {
            Profile.LayoutProfile.StoreGridTableViewPageSize(RadGrid1.MasterTableView, e.NewPageSize);
        }

Thanks,
Bryan

Telerik.Web.UI - 2009.2.826.35

[Shinu]

Hi,

You can access the pager item  RadComboBox in the ItemCreated event and fire the SelectedIndexChanged event  where you can access the changed value:

C#

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridPagerItem && e.Item.OwnerTableView.Name == "Reports")
        {
            GridPagerItem pager = (GridPagerItem)e.Item;
            RadComboBox cmbo = (RadComboBox)pager.FindControl("PageSizeComboBox");
            cmbo.AutoPostBack = true;
            cmbo.SelectedIndexChanged +=new RadComboBoxSelectedIndexChangedEventHandler(cmbo_SelectedIndexChanged);
        }
   }


 void cmbo_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
    {
      //Access value here
    }

Thanks,

Shinu

[Bryan Alfaro]

Shinu,

I understand the approach you have given but this does not function with RadGrid properly.  

1.  Because we are intercepting the SelectedIndexChanged on the PagerItemComboBox, the grid does not make the Ajax call to put the new number of rows on the screen.  

2.  I tried setting the SelectedIndexChanged with the new user profile and it does not reflect in the number of rows.  this in turn does not work for the other detail tables of the same name.

I tried to put a rebind in the events but then the whole collapse/expand state gets lost and that's not feasible plus it still did not reflect the right number of rows.  Perhaps I need to set the Page Size at a different point in the Event structure so that the Detail Table reflects the right number of rows.

Updated Code Below:

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
        {
            if (e.Item is GridCommandItem)
            {
                e.Item.FindControl("InitInsertButton").Visible = false;
                e.Item.FindControl("AddNewRecordButton").Visible = false;

            }

            if (e.Item is GridPagerItem && e.Item.OwnerTableView.Name == "ValuationDetail")
            {
                GridPagerItem pager = (GridPagerItem)e.Item;
                RadComboBox cmbo = (RadComboBox)pager.FindControl("PageSizeComboBox");
                cmbo.AutoPostBack = true;
                cmbo.SelectedIndexChanged += new RadComboBoxSelectedIndexChangedEventHandler(VD_PSCB_SelectedIndexChanged);
                Profile.LayoutProfile.RetrieveGridTableViewPageSize("ValuationDetail", cmbo);
            }

            if (e.Item is GridPagerItem && e.Item.OwnerTableView.Name == "ValuationDetailExposure")
            {
                GridPagerItem pager = (GridPagerItem)e.Item;
                RadComboBox cmbo = (RadComboBox)pager.FindControl("PageSizeComboBox");
                cmbo.AutoPostBack = true;
                cmbo.SelectedIndexChanged += new RadComboBoxSelectedIndexChangedEventHandler(VDE_PSCB_SelectedIndexChanged);
                Profile.LayoutProfile.RetrieveGridTableViewPageSize("ValuationDetailExposure", cmbo);
            }
        }

void VD_PSCB_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
        {
            //Access value here
            Console.WriteLine("New Page Size = " + e.Value.ToString());
            Profile.LayoutProfile.StoreGridTableViewPageSize("ValuationDetail", e.Value);
        }

void VDE_PSCB_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
        {
            //Access value here
            Console.WriteLine("New Page Size = " + e.Value.ToString());
            Profile.LayoutProfile.StoreGridTableViewPageSize("ValuationDetailExposure", e.Value);
        }

Thanks,
Bryan

[Pavlina]

Hello Bryan,

For more information about how to retain the expanded/selected state for grid items in hierarchy upon a rebind command, please refer to this code library:
Retain expanded/selected state in hierarchy on rebind

Best wishes,
Pavlina
the Telerik team

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[Bryan Alfaro]

Forum,

Let me ask this specific question:

1.  How do I apply the same AJAX steps that a MasterTable Page Size Change Event performs in a Detail Table PagerItemComboBox.SelectedIndexChanged postback?

Thanks,
Bryan

[Pavlina]

Hello Bryan,

In order to achieve the desired functionality, I suggest you review the following help article, which elaborates on this subject:
Traversing detail tables/items in Telerik RadGrid

Regards,
Pavlina
the Telerik team

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Follow the status of features or bugs in PITS and vote for them to affect their priority.