Thanks for response.

I am trying to raise below RowExpanded event on parent row of webhierarchicaldatagrid:

Protected Sub ugSearchTrial_RowExpanded(sender As Object, e As Infragistics.Web.UI.GridControls.ContainerRowEventArgs) Handles ugSearchTrial.RowExpanded

'Dim val As string =ugSearchTrial.Rows(e.Row)
End Sub

But this event is not firing when I click on any Parent row.

Also RowIslandsPopulating event not firing.

It will helpful for me if you attach/share any sample code to fire these events from webhierarchicaldatagrid.

Thanks,
Abhijeet 

Hello Abhijeet,

Thank you for the update. I am attaching my sample with both of these firing. As Jose stated before we believe these events are not firing for you because of how you have your grid setup. Please attach the markup for how you have your grid setup. If you have an isolated sample that demonstrates the issue you are seeing this would be more helpful as we would be able to look through it.

Thanks for prompt response,

I am using VB.net to load webhierarchicaldatagrid in our application.

You shared the events code for c#, I am facing issue with vb.net code as mentioned below:

.aspx page is as below:

--------------------------------------------------------------------------------------------------------------------

<asp:ScriptManager runat="server" ID="SGrid">
</asp:ScriptManager>

<ig:webhierarchicaldatagrid id="grid1" runat="server" datakeyfields="cstPQE"

                datamember="Customer" headercaptioncssclass="PartyHeaderClass" autogeneratecolumns="False"

                autogeneratebands="False" width="98%" height="940px" altitemcssclass="PartyAltRowClass"

                itemcssclass="PartyRowClass" initialdatabinddepth="-1" borderwidth="0px" >

                <%--Width="95px"--%>

                <%--<ClientEvents    RowExpanded="whdg_RowExpanded"  />--%>

                <Columns>

                    <ig:BoundDataField DataFieldName="TYPE1P" Key="TYPE1P" Header-Text="Type" Width="70px">

                        <Header Text="Type"></Header>

                    </ig:BoundDataField>

                    <ig:BoundDataField DataFieldName="P1TRD1IND" Key="P1TRD1IND" Header-Text="!"

                        Width="20px">

                        <Header Text="!"></Header>

                    </ig:BoundDataField>                   

                </Columns>

                <Bands>

                    <ig:Band AutoGenerateColumns="false" DataMember="Account" Key="ACCT1PQE" DataKeyFields="ACCT1PQE,P1PQE"

                        HeaderCaptionCssClass="AccountHeaderClass" AltItemCssClass="AccountAltRowClass"

                        ItemCssClass="AccountRowClass" Width="100%">

                        <Columns>

                            <ig:BoundDataField DataFieldName="TYPE1Acct" Key="TYPE1Acct">

                                <Header Text="TYPE"></Header>

                            </ig:BoundDataField>                           

                            <ig:BoundDataField DataFieldName="ACCT1PQE" Key="ACCT1PQE">

                                <Header Text="ACC GSPQE"></Header>

                            </ig:BoundDataField>                           

                            <ig:BoundDataField DataFieldName="P1PQE" Key="P1PQE" Hidden="true">

                            </ig:BoundDataField>

                        </Columns>

                        <Bands>

                            <ig:Band AutoGenerateColumns="false" Width="100%" DataMember="Relationship" Key="RELN1PQE"

                                DataKeyFields="ACCT1PQE,RELN1PQE" HeaderCaptionCssClass="RelationshipHeaderClass"

                                AltItemCssClass="RelationshipAltRowClass" ItemCssClass="RelationshipRowClass">

                                <Columns>

                                    <ig:BoundDataField DataFieldName="TYPE1RELN" Key="TYPE1RELN">

                                        <Header Text="TYPE"></Header>

                                    </ig:BoundDataField>

                                    <ig:BoundDataField DataFieldName="RELN1TRD1IND" Key="RELN1TRD1IND" Width="15px">

                                        <Header Text="!"></Header>

                                    </ig:BoundDataField>

                                    <ig:BoundDataField DataFieldName="Cust1PQE" Key="Cust1ID" Hidden="true">

                                    </ig:BoundDataField>

                                    <ig:BoundDataField DataFieldName="ACCT1PQE" Key="ACCT1PQE" Hidden="true">

                                    </ig:BoundDataField>

                                    <ig:BoundDataField DataFieldName="RELN1PQE" Key="RELN1PQE" Hidden="true">

                                    </ig:BoundDataField>

                                </Columns>

                                <Bands>

                                    <ig:Band AutoGenerateColumns="false" Width="100%" GroupingSettings-GroupedRowCssClass="SystemAltRowClass"

                                        DataMember="System" Key="SYSTEM1EDC" DataKeyFields="SYSTEM1EDC" HeaderCaptionCssClass="SystemHeaderClass"

                                        AltItemCssClass="SystemAltRowClass" ItemCssClass="SystemRowClass">

                                        <GroupingSettings GroupedRowCssClass="SystemAltRowClass">

                                        </GroupingSettings>

                                        <Columns>

                                            <ig:BoundDataField DataFieldName="TYPE1SYST" Key="TYPE1SYST">

                                                <Header Text="TYPE"></Header>

                                            </ig:BoundDataField>

                                            <ig:BoundDataField DataFieldName="SYST1TRD1IND" Key="SYST1TRD1IND" Width="15px">

                                                <Header Text="!"></Header>

                                            </ig:BoundDataField>                                           

                                        </Columns>

                                    </ig:Band>

                                </Bands>

                                <Behaviors>

                                    <ig:ColumnResizing Enabled="true">

                                        <ColumnSettings>

                                            <ig:ColumnResizeSetting EnableResize="true" />

                                        </ColumnSettings>

                                    </ig:ColumnResizing>

                                </Behaviors>

                            </ig:Band>

                        </Bands>

                        <Behaviors>

                            <ig:ColumnResizing>

                            </ig:ColumnResizing>

                        </Behaviors>

                    </ig:Band>

                </Bands>

                <Behaviors>

                    <%--  <ig:Paging EnableInheritance="True" >

                        </ig:Paging>--%>

                    <ig:ColumnResizing>

                    </ig:ColumnResizing>

                    <ig:Activation Enabled="true" ActiveRowCssClass="ActiveRowClass">

                    </ig:Activation>

                    <ig:Selection RowSelectType="Single" CellClickAction="Cell" CellSelectType="Single"

                        SelectedCellCssClass="SelCellClass"   >

                        <SelectionClientEvents CellSelectionChanged="grid1_RowSelectionChanged" />

                        <AutoPostBackFlags CellSelectionChanged="True"  RowSelectionChanged="True" />

                    </ig:Selection>

                    <ig:EditingCore>

                        <Behaviors>

                            <ig:RowAdding>

                            </ig:RowAdding>

                        </Behaviors>

                    </ig:EditingCore>

                    <ig:Clipboard>

                    </ig:Clipboard>

                </Behaviors>

            </ig:webhierarchicaldatagrid>

--------------------------------------------------------------------------------------------------------------------

 .aspx.vb page as below from which are handling events:

Protected Sub ugSearch_RowExpanded(sender As Object, e As Infragistics.Web.UI.GridControls.ContainerRowEventArgs) Handles ugSearchTrial.RowExpanded
'Dim val As string =grid1.Rows(e.Row)
End Sub

Protected Sub ugSearch_RowIslandsPopulating(sender As Object, e As Infragistics.Web.UI.GridControls.ContainerRowCancelEventArgs)

End Sub

 --------------------------------------------------------------------------------------------------------------------

Question - Above Events from VB.NET code not able to fire, could you please have look and suggest suitable solution.

OnRowExpanded="ugSearch_RowExpanded" OnRowIslandsPopulating="ugSearch_RowIslandsPopulating" tried this but this not woking 

Hello Abhijeet,

Thank you for the update. To look further into this matter to see what is happening with your code I would like you to send me an isolated sample that reproduces the behavior. For the RowIslandsPopulating event it appears you do not have a Handles ugSearchTrial.RowIslandsPopulating. Have you tried reproducing this in an isolated sample?

Hello Mike, 

Thanks for your guidance. 

Well I tried to run isolated solution which is give by you and its working perfectly, all event are firing properly.

Also I have added your sample code in my solution its working fine. If we compare with your same code with us, there is only one difference that you did not use initialdatabinddepth="-1" and we used it.

In my webhierarchicaldatagrid, initialdatabinddepth="-1" is defined and if I remove this,  i am getting below error:

 ------------------------------

Message from webpage
------------------------------
Runtime Exception: No child grid script descriptors are available!
---------------------------
OK 
---------------------------

Note-  I have added  datakeyfields="****" and DataMember="****" to all Bands. datakeyfields we definewd are our Primary keys.

But still no luck.

Can you look the earlier code sample I shared with you and suggest what could be the possible cause not able to raise events RowExpanded and RowIslandsPopulating from my code?

Please let us know if you need more information on this query.

Hello Abhijeet,

Thank you for the update. You code doesn’t show you are setting up the DataKeyFields and DataMember. Do you have or can create an isolated sample that reproduces this matter? If you like I can create a private case for this matter.

Hello Abhijeet,

If you are still experiencing this issue and are using .NET 4.0 then it is likely because you are somehow not setting up the grid properly. I am attaching a sample that demonstrates how to properly setup the grid. To go further with this matter you are going to have to send an isolated sample that reproduces the issue you are seeing.

Thanks mike, Please have look into it, I think its challenging query for INFRAGISTIC development team.

Hello Abhijeet,

Thank you for the update. I see that those forum threads are already being handled by other team members. I will discussed those threads with them.

Hello Mike,

If you are there please have lookin to it- 

http://es.infragistics.com/community/forums/p/104514/494365.aspx#494365

http://es.infragistics.com/community/forums/t/104512.aspx

Hello Abhijeet,

Thank you for the update. If you have new queries I recommend you create separate forum threads or cases to keep it clear what each one is about.