radgrid.needdatasource is not working while calling radgrid.rebind

[Priya]

Sir
I called radgrid.rebind() in linkbutton click.But the needdatasource event of that grid is not firing.Any help..
The aspx code is

<telerik:RadDock runat="server" ID="rddockPrjTypes" Title="Project Types">
<ContentTemplate>
<telerik:RadGrid runat="server" ID="grdProjectTypes" Skin="Vista" AutoGenerateColumns="False"CssClass="gridnew" GridLines="None" ShowHeader="false">
<ClientSettings AllowColumnsReorder="True" ReorderColumnsOnClient="True">

 <Selecting AllowRowSelect="True" />
</ClientSettings>
<MasterTableView NoDetailRecordsText="" NoMasterRecordsText="">
<Columns>
<telerik:GridTemplateColumn UniqueName="TemplateColumn">                                <ItemTemplate>

<asp:LinkButton ID="lnkPTypes" runat="server" Text='<%#DataBinder.Eval(Container,"DataItem.projecttypedesc") %>'></asp:LinkButton> (<asp:LinkButton ID="lnkCount" runat="server" Text='<%#DataBinder.Eval(Container,"DataItem.counts") %>'></asp:LinkButton>                                                             ) </ItemTemplate>
</telerik:GridTemplateColumn>

  </Columns>
<EditFormSettings>
<PopUpSettings ScrollBars="None"></PopUpSettings>                            </EditFormSettings><ExpandCollapseColumn Visible="False" Resizable="False"><HeaderStyle Width="20px"></HeaderStyle></ExpandCollapseColumn>            </MasterTableView></telerik:RadGrid> </ContentTemplate></telerik:RadDock>

thanks

[Shinu]

Hi Priya,

I guess you are setting the NeedDataSource event handler in the code behind. Sending your code behind will be more good.

Thanks
Shinu.

[Priya]

Protected Sub grdProjectTypes_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles grdProjectTypes.NeedDataSource

Try

Dim ds As New DataSet()

ds = GetProjectTypes(

"PType")

If ds.Tables(0).Rows.Count > 1 Then

grdProjectTypes.DataSource = ds

End If

Catch ex As Exception

Dim er As ErrHandler = New ErrHandler(ex)

er.RaiseError()

End Try

End Sub

[Priya]

any idea...plz help me..its urgent

[Priya]

I hav three grids grdProjectTypes,grdPriority,grdStatus

Protected

Sub lnkRemoveFilter_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkRemoveFilter.Click

grdProjectTypes.Rebind()

grdPriority.Rebind()

grdStatus.Rebind()

End Sub

and when clicking on the linkbutton sometimes only grdProjectTypes needdatasource  is working.Sometimes only grdPriority needdatasource event  is working .wht wib the prbm.I actually much confused by this prblm
Plz help me....

[Shinu]

Hi Priya,

Could you please paste the portion of the code in which you are adding the NeedDataSource Event handler ?

Shinu

[Priya]

Thanks alot..

i m using .net2005.
Did u mean 

Protected Sub grdProjectTypes_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles grdProjectTypes.NeedDataSource

Try

Dim ds As New DataSet()

ds = GetProjectTypes(

"PType")

If ds.Tables(0).Rows.Count > 1 Then

grdProjectTypes.DataSource = ds

End If

Catch ex As Exception

Dim er As ErrHandler = New ErrHandler(ex)

er.RaiseError()

End Try

End Sub

[Shinu]

Hi Priya,

Sorry for the confusion. I asked if you have set something like this in the code behind:

RadGrid1.NeedDataSource += new GridNeedDataSourceEventHandler(this.RadGrid1_NeedDataSource);

The event will not be raised if you have not set the proper event handler.

Shinu

[Priya]

I am using asp.net(VB) 2005.I cant see tht event handlers definition.I didnt add that handler manualy
thanks

[Princy]

Hi Priya,

Try adding the NeedDataSource event handler either in the code behind or set it in the aspx page.

//Code behind
VB:

AddHandler RadGrid1.NeedDataSource, AddressOf Me.RadGrid1_NeedDataSource

or

ASPX:

<telerik:RadGrid ID="RadGrid1" runat="server" OnNeedDataSource="RadGrid1_NeedDataSource">

Regards
Princy

[Priya]

Thanks..
i added another grid.Its rebind is working properly.It doesnot have the event handler.All grids have the same aspx codes.The only difference is Errorful grids are within RadDock.

[Priya]

After adding the event handler the needdatasource is executing twice.But when i call rebind,needdatasource is not executing.
I tried by seting the enableviewstate to true and false.But no change.Rebind is stil not executing

[Priya]

any help plz ...

[Priya]

plz help me.....

[Scott]

have you received any solution to this?  My NeedDataSource event handler is also firing twice.

Thanks

[Priya]

no.I didnt get solution.I just removed tht eventhandler from aspx page
ie,
onneeddatasource="grid1_needdatasource" .i removed it.Now its working only once.
But my prbm is grid1.rebind() is not workg.I didnt get any solution

Thanks Scott

[Sharmin]

I do not know whether you already got the answer. If not, try setting the radgrid's datasource to null and then rebind.

RadGrid1.DataSource = null;

RadGrid1.Rebind();

Thanks,
Sharmin