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Suhrid
40
WebHierarchical Grid is not displaying expand arrow for child band
posted

Hi,

We are evaluating your product. I am just trying one sample to run. I have manual load for webhierarchical grid through dataset on pageload which is working fine. I want to load child band on demand. I implemented

onrowislandspopulating="WebHierarchicalDataGrid1_RowIslandsPopulating"

 

 

 

method but it is not displaying expand arrows.

Following is my grid code.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<ig:WebHierarchicalDataGrid ID="WebHierarchicalDataGrid1" runat="server" Height="323px" Width="846px" AutoGenerateColumns="False" AutoGenerateBands="False" DataKeyFields="CustomerID" InitialDataBindDepth="0" onrowislandspopulating="WebHierarchicalDataGrid1_RowIslandsPopulating">

 

 

 

<ExpandCollapseAnimation SlideOpenDirection="Auto" SlideOpenDuration="300" SlideCloseDirection="Auto" SlideCloseDuration="300" />

 

 

 

 

 

 

 

 

<Columns>
<ig:BoundDataField DataFieldName="Contact_ID" Hidden="True" Key="Contact_ID">
<Header Text="Contact_ID"/>
</ig:BoundDataField>

 

 

 

<ig:BoundDataField DataFieldName="CustomerID" Key="CustomerID">
<Header Text="CustomerID" />
</ig:BoundDataField>

 

 

 

<ig:BoundDataField DataFieldName="FirstName" Key="FirstName">
<Header Text="FirstName"/>
</ig:BoundDataField>

 

 

 

<ig:BoundDataField DataFieldName="LastName" Key="LastName">
<Header Text="LastName" />
</ig:BoundDataField>

 

 

 

<ig:BoundDataField DataFieldName="CompName" Key="CompName">
<Header Text="CompName" />
</ig:BoundDataField>

 

 

 

</Columns>

<Behaviors>
<ig:Paging PageSize="100" QuickPages="2"></ig:Paging>
<ig:Filtering></ig:Filtering>
<ig:Sorting>
<ColumnSettings>
<ig:SortingColumnSetting ColumnKey="CustomerID"/>
<ig:SortingColumnSetting ColumnKey="FirstName"/>
<ig:SortingColumnSetting ColumnKey="LastName"/>
<ig:SortingColumnSetting ColumnKey="CompName" />
</ColumnSettings>

 

 

 

 

 

</ig:Sorting>

 

 

 

 

 

</Behaviors>

 

 

 

</ig:WebHierarchicalDataGrid>

 

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  • 33839
    Suggested Answer
    posted

    Hi suhrid,

    If you have no child band defined, the grid has no way of knowing that it will have a child.  So, it doesn't check the data for possible children.  What you will need to do is handle the RowInitialize server event and set IsEmptyParent to true for children that you expect to have a child that you will manually load later.  You can get the row from the event args.  You may have to cast it to ContainerGridRecord.

    regards,
    David Young 

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