Hi All,

My /host/extensions module is not loading -   I've tracked the issue down to

/DesktopModules/Admin/Extensions/InstalledExtensions.ascx.cs Line 447

DataGrid extensionsGrid = item.Controls[1] as DataGrid;  assigns null to extensionsGrid

(item.Controls[1] appears to be just a System.Web.UI.DataBoundLiteralControl) with clientID  "dnn_ctr345_Extensions_installedExtensionsControl_extensionTypeRepeater_ctl00_0"

When BindGrid(kvp.Key, extensionsGrid, noResultsLabel); is called  (line 119)

The null ref exception is thrown at line 123

grid.ItemDataBound += extensionsGrid_ItemDataBound;

Exception

System.NullReferenceException: Object reference not set to an instance of an object.
   at DotNetNuke.Modules.Admin.Extensions.InstalledExtensions.BindGrid(String packageType, DataGrid grid, Label noResultsLabel) in c:\development\novi\DesktopModules\Admin\Extensions\InstalledExtensions.ascx.cs:line 123
   at DotNetNuke.Modules.Admin.Extensions.InstalledExtensions.extensionTypeRepeater_ItemDataBound(Object sender, RepeaterItemEventArgs e) in c:\development\novi\DesktopModules\Admin\Extensions\InstalledExtensions.ascx.cs:line 451

 Any insight to this error would be much appreciated!

Hey Cathal,

Thanks for your suggestions!  Will post here for bug issues from now on.

I ran the two stored procedures for each module and all packages return fine.

dnn_GetPackageTypes and dnn_GetPckagesByType null,'Module' 

I've been stepping through the code and in

private void extensionTypeRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)

both the below are being assigned to null

DataGrid extensionsGrid = item.Controls[1] as DataGrid;Label noResultsLabel = item.Controls[3] as Label;

item.Controls[1] is a DataBoundLiteral control with the Text value of "Modules" and

item.controls[3] is a DataBoundLiteral control with the Text value of "Modules"

It looks like the cast from item.controls[x] is not working and hence not populating the extensionsGrid and noResultsLable objects being passed to

BindGrid(kvp.Key, extensionsGrid, noResultsLabel);

Odd that no error is thrown during the above assignment/cast...

 The null ref exception is thrown at line 123

grid.ItemDataBound += extensionsGrid_ItemDataBound;

Something is strange here.  BTW. All other admin tabs work i.e. security, user accounts etc...

I'd love to hear any of your thoughts on the above!

 Seth

Thanks for all the input.  I had a bit to look at this again today.  The quick fix is a core modification in

 DesktopModules/Admin/Extensions/InstalledExtensions.ascx.cs

 Line 447 and  449 in extensionTypeRepeater_ItemDataBound

Changed

DataGrid extensionsGrid = item.Controls[1] as DataGrid;
Label noResultsLabel = item.Controls[3] as Label;

TO

DataGrid extensionsGrid = item.Controls[5] as DataGrid;
Label noResultsLabel = item.Controls[7] as Label; 

(also needs to be done in AvailableExtensions.ascx.cs - extensionTypeRepeater_ItemDataBound)

For some reason my datagrid and label controls got shifted in the extensionTypeRepeater controls collection.  The ascx page was never touched.  I imagine that this might be an issue with the skin.

 If anyone has seen this behavior in the past I'd appreciate any insight.

At some point, I'll revert my core modifications and fix this bug for real.  I'll post my findings when I do.

 Thanks,

Seth