Grid does not refresh after rebind Chrome in UI for ASP.NET AJAX

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Grid does not refresh after rebind Chrome

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Grid

This is a migrated thread and some comments may be shown as answers.

Marcel asked on 26 Jul 2018, 06:35 PM

Hello,

I have an old style ASP .NET AJAX SharePoint web part with a user control that has a grid on it. I have a Search button which, when clicked, posts back to the server and populates the grid with search results based on search text. In IE11 everything works fine. In Chrome (and Edge), the first search works, but subsequent searches do not refresh the grid. In debug mode, I see the server code works correctly to retrieve the data, data bind and rebind the results, but those results never get back to the client and the grid is not refreshed. I repeat - everything works correctly in IE.

I also noticed that on the second search, when the server is finished, none of the client side JavaScript is executed - e.g. I added an alert which is never executed.

I need some guidance on how to identify the problem, or if this is a known issue.

Chrome: Version 67.0.3396.99 (Official Build) (64-bit)

IE: 11.165.17134.0 Update version: 11.0.75

Telerik: v4.0_2017.3.913

Thank you

8 Answers, 1 is accepted

answered on 31 Jul 2018, 06:25 AM

Hello Marcel,

When AJAX is temporarily disabled, you can also check whether there any script errors interfering:
https://www.telerik.com/support/kb/aspnet-ajax/ajaxmanager/details/get-more-descriptive-errors-by-disabling-ajax

You can also check these resources for further information:
https://docs.telerik.com/devtools/aspnet-ajax/sharepoint/troubleshooting/sharepoint-ajax-updates
https://docs.telerik.com/devtools/aspnet-ajax/sharepoint/2013/installation-and-deployment/create-an-ajax-enabled-sharepoint-webpart-with-telerik-controls
https://docs.telerik.com/devtools/aspnet-ajax/sharepoint/2007/create-an-ajax-enabled-sharepoint-webpart-that-uses-the-telerik-controls

I hope this will prove helpful.

Regards,
Eyup
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answered on 03 Aug 2018, 10:08 PM

Eyup,

I have simplified my code by removing all my javascript. I now have a SharePoint webpart that adds a radAjaxPanel via code, and I add a user control to the radAjaxPanel. I have also added a RadAjaxManager and AjaxSettings via code.

01.protected override void OnInit(EventArgs e)

02. {

03. base.OnInit(e);

04. this.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Left;

05. _radAjaxLoadingPanel = new RadAjaxLoadingPanel();

06. _radAjaxLoadingPanel.ID = "RadAjaxLoadingPanel1";

07. _radAjaxLoadingPanel.Skin = "Windows7";

08. _radAjaxLoadingPanel.MinDisplayTime = 500;

09. _radAjaxLoadingPanel.Transparency = 30;

10.

11. _radAjaxPanel = new RadAjaxPanel();

12. _radAjaxPanel.ID = "RadAjaxPanel1";

13. _radAjaxPanel.LoadingPanelID = "RadAjaxLoadingPanel1";

14. _radAjaxPanel.EnableAJAX = false; // freshdesk issues 5434, 4419, 4558 - chrome browser

15.

16. _docSearchUserControl = Page.LoadControl(_ascxPath) as DocSearchUserControl;

17. _docSearchUserControl.ID = "DocSearchUserControl";

18. _docSearchUserControl.ParentWebPart = this; // add reference to this web part

19.

20. _radAjaxPanel.Controls.Add(_docSearchUserControl);

21.

22. ajaxmgr = RadAjaxManager.GetCurrent(Page);

23. if (ajaxmgr == null)

24. {

25. ajaxmgr = new RadAjaxManager() { ID = "RadAjaxManager1" };

26. Page.Items.Add(typeof(RadAjaxManager), ajaxmgr);

27. }

28.

29. if (Page.Form != null)

30. {

31. Page.Form.Controls.AddAt(0, ajaxmgr);

32. }

33.

34. Controls.Add(_radAjaxLoadingPanel);

35. Controls.Add(_radAjaxPanel);

36.

37. EnsureChildControls();

38. //end code ref: https://docs.telerik.com/devtools/aspnet-ajax/sharepoint/troubleshooting/sharepoint-ajax-updates

39.

40. }

41.

42. protected override void CreateChildControls()

43. {

44. RadAjaxLoadingPanel loadingPanel = _radAjaxLoadingPanel;

45.

46. RadGrid grid = null;

47. RadSearchBox searchRadSearchBox = null;

48. RadButton button1 = null;

49. Panel panel1 = null;

50.

51. if (_docSearchUserControl != null)

52. {

53. grid = _docSearchUserControl.FindControl("SearchResultsRadGrid") as RadGrid;

54. searchRadSearchBox = _docSearchUserControl.FindControl("SearchRadSearchBox") as RadSearchBox;

55. button1 = _docSearchUserControl.FindControl("Button1") as RadButton;

56. panel1 = _docSearchUserControl.FindControl("Panel1") as Panel;

57. }

58. if (ajaxmgr != null)

59. {

60. if (searchRadSearchBox != null)

61. {

62. AjaxSetting ajaxSetting3 = new AjaxSetting();

63. ajaxSetting3.AjaxControlID = button1.ID;

64. ajaxSetting3.UpdatedControls.Add(new AjaxUpdatedControl(panel1.ID, loadingPanel.ID));

65. ajaxmgr.AjaxSettings.Add(ajaxSetting3);

66. }

67. }

68. }

The user control has a single RadButton which posts back. This code works perfectly in IE, but in Chrome/Edge, it works only the first time. Subsequent clicks of the button DO post back, but do not show the loading panel. There are no errors in the debugger. So now I have tried the loading panel with both a radajaxpanel and a radajaxmanager and both behave exactly the same. Any clues - this looks like a bug to me. What is the next step?

1.protected void Button1_Click(object sender, EventArgs e)

2.{

3. //simulate longer load time

4. System.Threading.Thread.Sleep(1000);

5.}