Set focus to the same radcombobox in Radgrid inline edit form

[Vasssek]

Hello Telerik Team,

I know that this kind of topic has been solved many times, but I couldn't have found solution in my case.

I use inline editing form in the radgrid. I have radcombobox control defined inside of the radgrid <EditItemTemplate> section. The combobox has set property EnableLoadOnDemand=true.

What I need to achieve is to set focus on the same combobox when requested item is selected. Now, when user selects some item from the combobox list it's updated properly, but focus in not set on it. I found something similar in this thread: http://www.telerik.com/community/forums/aspnet-ajax/combobox/set-focus-and-cursor-at-the-end-of-text-in-radcombobox.aspx

I use this script in the protected void cmb_Artikel_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e):

StringBuilder script = new StringBuilder();
script.Append("Sys.Application.add_load(function(){");
script.Append("var combo2 = $find('" + combo.ClientID + "');");
script.Append("combo2.get_inputDomElement().focus();");
script.Append("combo2.selectText(combo2.get_text().length, combo2.get_text().length); });");

RadScriptManager.RegisterStartupScript(Page, Page.GetType(), "comboCursor", script.ToString(), true);

The script runs properly, the combobox gets focus after user selects some item. For this steps everything looks good and correct, the problem will appear when user clicks on update button in the edited row.

Then the error message is appeared: Microsoft JScript runtime error: 'null' is null or not an object

Detailed info about this error is in the attachment.

I think that it will be related to Sys.Application.add_load from the above script section. Maybe there must be append some script for unload section when ajax request is completed ?

Please help me to solve this issues.

Best regards

Vasssek

[Helen]

Hi Vasssek,

We tried to reproduce the problem locally, but without much success. Please find attached our test files. Could you please modify our test project, so we can see the problem locally?

Kind regards,
Helen
the Telerik team

[Vasssek]

Hello Helen,

I've changed a bit your example page. Now, when you choose item from combbox and then clik on update button, the error I described above is appeared...

The customized web site is uploaded here http://www.uschovna.cz/download/AWE89ABKJGJ7EL7I/JIURHJRS57

Note: I'm using .Net 3.5 framework and telerik dll version is 2010.3.1422.35...

Best regards

Vasssek

[Helen]

Hello Vasssek,

Please modify your code as the following:

Copy Code

Copy Code

Copy Code

protected void lstRegion_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
   {
       RadComboBox combo = (RadComboBox)o;
       string script = "var combo2 = $find('" + combo.ClientID + "');combo2.get_inputDomElement().focus();combo2.selectText(combo2.get_text().length, combo2.get_text().length);";
       RadAjaxManager1.ResponseScripts.Add(script);
   }

Also find attached the updated project. Hope it helps.

Kind regards,
Helen
the Telerik team

[Vasssek]

Hello Helen,

thank your very much. Your last code block did the job :-)

I really appreciate your help.

Have a nice day.

Vasssek