Hi Magued,

Thanks for Your reply.

As per your reply I add this Register tag prefix

<%

@ Register assembly="Infragistics35.Web.v10.1, Version=10.1.20101.1011,

Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"

namespace="Infragistics.Web.UI.ListControls" tagprefix="ig" %>

at the top of the page and it worked fine.

But when I bind Items from an SqlDataSource it throws this error

The control collection cannot be modified during DataBind,

Init, Load, PreRender or Unload phases.

Please help.

Thank You

Praveen

Hi Praveenkm,

I have included a sample that demonstrates binding an sqldatasource to a webdropdown. Please download and uncompress. You may need to run the project upgrade utility to upgrade the project to the NetAdvantage version that you are using. You will need to change the connection string to point to your NorthWind DataBase. I have removed the ig_res folder to decrease the size of the sample.

Please test and send me regarding any questions. Also feel free to modify the sample to reproduce the error you are getting..

Magued

Hi Magued,

I used the application You had attached. The WebDropDown -> DataBinding will work fine if the

control is used independently.

In my case I am using a DropDownProvider which is an EditorProvider and using this

for a column in RowAdding Behavior. The Items in the WebDataGrid is also bound from an

SqlDataSource and also trying to bind DropDownProvider items from SqlDataSource.

When the PageLoad happens I get this error :

The control collection cannot be modified during DataBind,

Init, Load, PreRender or Unload phases.

Please help

Praveen

Hi Parveen,

Please refer to the following link on how to use a WebDropDown as an editor provider for the WebDataGrid. The link describes the same scenario as your application. if you are still having an issue then try to reproduce it on a sample or send me more information on how to reproduce it.

Magued  

Hi Magued,

I cannot see the link anywhere.Please post it.

Praveen

I'm runing NetAdvantage 10.3 clr 4x, and I have the same problem. I can't have a dropdown as an editor provider if there's a template data field with an itemtemlate tag in the webdatagrid.

Thanks

Upgrading to the latest service release (2105) seems to have fixed the problem.

I have the same problem with 10.3.  If I remove my TemplateDataField, it works.  With the TemplateDataField in there, I get this stack trace:

[HttpException (0x80004005): The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.]
   System.Web.UI.ControlCollection.Add(Control child) +8701175
   Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.get_TemplateContainerControl() +117
   Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.Infragistics.Web.UI.IControlMain.get_TemplateContainerControl() +33
   Infragistics.Web.UI.Framework.RunBot.InstantiateTemplate(ITemplatedObject item, ITemplate template, String templateContainerID) +127
   Infragistics.Web.UI.GridControls.BaseGrid.InstantiateTemplate(ITemplatedGridObject item, ITemplate defaultTemplate, String id) +366
   Infragistics.Web.UI.GridControls.WebDataGrid.InstantiateTemplates() +1532
   Infragistics.Web.UI.GridControls.BaseGrid.EnsureTemplates() +34
   Infragistics.Web.UI.GridControls.WebDataGrid.DataBind() +884
   System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +66
   Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.EnsureDataBound() +86
   Infragistics.Web.UI.GridControls.WebDataGrid.EnsureDataBound() +186
   Infragistics.Web.UI.GridControls.WebDataGrid.CreateChildControls() +51
   System.Web.UI.Control.EnsureChildControls() +102
   Infragistics.Web.UI.GridControls.WebDataGrid.EnsureChildControls() +129
   System.Web.UI.Control.FindControl(String id, Int32 pathOffset) +20
   System.Web.UI.Control.FindControl(String id) +12
   System.Web.UI.WebControls.DataBoundControlHelper.FindControl(Control control, String controlID) +81
   System.Web.UI.WebControls.DataBoundControl.GetDataSource() +67
   Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.GetDataSourceObject(Boolean designModeCheck) +185
   Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.GetDataSourceObject() +38
   Infragistics.Web.UI.Framework.Data.FlatDataBoundControl.GetDataSource() +59
   System.Web.UI.WebControls.DataBoundControl.ConnectToDataSourceView() +159
   System.Web.UI.WebControls.DataBoundControl.OnLoad(EventArgs e) +19
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207

Hello boruchsiper,

I am having the same exact issue.

Did you ever find a resolution?

Thanks,
Jeff 

Hi,

Please attach the markup for the WebDataGrid. If this is a different issue then please open a new forum thread.

Magued