With large datasets paging seems to crash and doesnt expand child bands. Can someone give me an example of how I can prevent this from happening. DO I need to rebind grid on every postback. How can i call rowIslandsPopulating on demand?
Hello dev_here,
What is the error that you are getting? You may try to increase the timeout:
http://community.infragistics.com/forums/p/65426/336473.aspx
Good sample for manual load on demand can be found here:
http://samples.infragistics.com/aspnet/Samples/WebHierarchicalDataGrid/Performance/ManualLoadOnDemand/Default.aspx?cn=hierarchical-data-grid&sid=0f1ddcc5-07c6-4406-a1f2-ed2d15c40279
I hope this helps
I get a 'Runtime Exception: No child grid script descriptors are available!' when i try to expand teh parent for pages beyond the first. also if i include paging in child bands then on clicking the 2nd page for the child, the grid is no longer seen
Please refer to the following thread regarding this matter:
http://community.infragistics.com/forums/t/70735.aspx
Finally found the way to get around this:
EnableDataViewState
="True" EnableAjax="False"
Thsi helps in getting data from large datasets with paging.
Thank you for sharing your solution.
EnableDataViewState may make a difference depending on whether the grid is being rebound on each postback and disabling AJAX may also make a difference if the grid is placed inside an UpdatePanel:
http://help.infragistics.com/NetAdvantage/ASPNET/2012.1/CLR4.0/?page=Infragistics4.Web.v12.1~Infragistics.Web.UI.GridControls.WebHierarchicalDataGrid~EnableDataViewState.html
Please do not hesiate to contact me if you have any additional questions.
Petar,
Can you give me an example of a manual on demand WHDG inside an updatepanel?
As i am still facing issues in navigation of child bands. cannot seem to be able to page/filter
Hi dev_here,
There seems to be a separate thread regarding this matter, please refer to it:
http://community.infragistics.com/forums/p/71083/360710.aspx#360710