Grid Binding and Paging | Infragistics Forums

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Grid Binding and Paging

Clint posted over 13 years ago

I have the grid set up for Automatic Load on Deman and Paging. When I try to click the arrow to expand the parent row I get the following error message:

Runtime Exception: No child grid script descriptors are available!

I found a different post where it said to set the InitialDataBindDepth to -1 to load all the data, if I try this I am able to expand the parent row but when I try to page through the grid I get the following error:

Deserialization Failure: Invalid Response.

Any ideas on how I can get the grid to expand the parent row and also enable paging?

Thanks!

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[Infragistics] Petar Ivanov posted over 12 years ago

Hi wins903,

It has been some time since your post, however in case you still need assistance I would be glad to help.

In this case I am obviously unaware of the precise configuration you are using in your grid, however I can suggest that you ensure that the DataMembers and DataKeyFields are setup for all of your bands. It may be worth testing whether load on demand functions with paging turned off as a start.

Please let me know if you have any questions.
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Amruta posted over 12 years ago in reply to [Infragistics] Petar Ivanov

Hello,

          I am having exactly the same issue. I am using WebHierarchicalDataGrid v11.2 and VS 2008. I have just 2 bands in my grid. But when I try to expand the row of parent band, I am getting an error "Runtime Exception: No child grid script descriptors are available! "

I have also assigned DataKeyFields and DataMember to the bands. My code is as follows -

      Dim parentBand As New Band()
      parentBand.AutoGenerateColumns = False
      parentBand.DataMember = "Parent"
      parentBand.DataKeyFields = "ID"
      grdGrid.Bands.Add(parentBand)

      Dim childBand As New Band()
      childBand.AutoGenerateColumns = False
      childBand.DataMember = "Child"
      childBand.DataKeyFields = "GRPID"
      grdGrid.Bands.Add(childBand)

      arrKey(0) = ds.Tables(0).Columns("ID")
      ds.Tables(0).PrimaryKey = arrKey
      dtRl = New DataRelation("Relation", ds.Tables(0).Columns("ID"), ds.Tables(1).Columns("GRPID"))
      ds.Relations.Add(dtRl)
      grdGrid.DataSource = ds
      grdGrid.DataBind()

What exactly is missing here?Also in the aspx I have set AutoGenerateBands=false and AutoGenerateColumns=false.

Please help me with this.

Thanks

Amruta D
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