0 answers

125 views

RadTreeView is not calculating the dropdown data location correctly

The page starts without the element on it, but through another action everything in the image below will show up on the page. Once the element is populated on the page, something isn't calculated correctly in terms of the dropdown list location - the yellow highlighted area just under the "Record Types" widget is where I expect the list to be. In particular, class rddtSlide top property is what is miscalculated. What calculates this position? And how can I get it to calculate properly once it shows up on the page?

TreeView

asked on 06 Jun 2023

0 answers

259 views

MaxJsonLength exceeded in RadMultiSelect

I am getting the following error when using RadMultiSelect with over 13000 records:

Error InnerException Message: Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property.
Error InnerException StackTrace:    at System.Web.Script.Serialization.JavaScriptSerializer.Serialize(Object obj, StringBuilder output, SerializationFormat serializationFormat)
   at Telerik.Web.UI.AdvancedJavaScriptSerializer.Serialize(Object obj)
   at Telerik.Web.UI.RadMultiSelect.DescribeItems(IScriptDescriptor descriptor)
   at Telerik.Web.UI.RadMultiSelect.DescribeComponent(IScriptDescriptor descriptor)
   at Telerik.Web.UI.ScriptRegistrar.GetScriptDescriptors(Control control)
   at Telerik.Web.UI.RadDataBoundControl.GetScriptDescriptors()
   at System.Web.UI.ScriptControlManager.RegisterScriptDescriptors(IScriptControl scriptControl)
   at Telerik.Web.UI.RadDataBoundControl.RegisterScriptDescriptors()
   at Telerik.Web.UI.RadDataBoundControl.Render(HtmlTextWriter writer)
   at Telerik.Web.UI.RadMultiSelect.Render(HtmlTextWriter writer)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)

I already have <jsonSerialization maxJsonLength="2147483647"> in my web.config but still errors out.

Telerik.Web.UI Version: 2022.2.622.45

Seems similar to this issue: https://www.telerik.com/forums/maxjsonlength-exceeded-in-radmap

But updating to higher version than 2020 didn't seem to solve it. Was the fix only for RadMap?

MultiSelect

asked on 05 Jun 2023

8 answers

1.3K+ views

Invalid Json Primitive

Hello telerik,

I am getting an error on every page wherever i have used rad controls.In fact my project has completely stopped working due to these errors:
Before it was working fine. The error is:
Sys.WebForms.PageRequestManagerServerErrorException:
Sys.WebForms.PageRequestManagerServerErrorException: Invalid JSON
primitive:
{"enabled":true,"emptyMessage":"","validationText":"","valueAsString":"","minValue":0,"maxValue":70368744177664,"lastSetTextBoxValue":""}.

Please tell me the solution for this so that i can fix it and work on my project asap

Ajax

answered on 01 Jun 2023

0 answers

129 views

RadMap - Show Tooltips initially

Hello,

is it possible to show the Marker Tooltips initially (code behind)?

i didnt find any example.

Map

asked on 01 Jun 2023

0 answers

171 views

Org Chart for large dataset..

I have a large dataset of employees.

I want to load one node initially and all other node collapsed and load other node on demand.

But this control is loading complete data on page load which is making it slow.

is there any way to rebind the org chart on expand and bind all child nodes?

Ajax

OrgChart

asked on 01 Jun 2023

0 answers

125 views

Video source element is being closed by RadEditor

RadEditor is closing the source element that is nested inside the video element . For example, in the attached screen shots show the “source” element which we add it to Rich text field. After we save the Rich Text field and open it again, we see the source element is closed. Is there a configuration setting that would allow us to bypass the closure of the source element?

Editor

asked on 30 May 2023

0 answers

981 views

"System.ArgumentException: Illegal characters in path" Exception!

Hi,

I'm getting the following exception multiple time throughout the application in error log. It's very difficult to identify the exact reason for exception occurrence as the application is vast to debug in depth. Also, I'm using Telerik Control as well as Telerik Reporting in multiple place in the application. The version of Telerik.Web.UI which I am currently using is 2023.1.323.45

EXCEPTION URL :

https://adba.roc-p.com:443/Telerik.Web.UI.WebResource.axd?type=rau

EXCEPTION MESSAGE :

System.ArgumentException: Illegal characters in path. at System.IO.Path.CheckInvalidPathChars(String path, Boolean checkAdditional) at System.IO.Path.GetExtension(String path) at Telerik.Web.UI.AsyncUploadHandler.ProcessUploadedFile() at Telerik.Web.UI.HandlerRouter.ProcessHandler(String handlerKey, HttpContext context) at Telerik.Web.UI.WebResource.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Can anyone please provide all the possible reason behind this exception along with its step to resolve. Any help will be highly appreciated!

NOTE :

I have already visited multiple forum in which it is mentioned that this issue occurs in the previous version of the Telerik.Web.UI. Please confirm whether the exception mentioned above still exist in the version of Telerik.Web.UI which I am currently using i.e. 2023.1.323.45. And If not then please provide the possible reason that we need to verify on our end.

Ajax

AjaxPanel

asked on 30 May 2023

2 answers

279 views

Hide RadProgressArea after Response.End()

Hi,
I'm trying to use RadProgressArea to monitor custom progress.Everything works good, but the last part of my method is to return file to a user for a download. I do this through writing stream to a response and ending it with Response.End(). Something like this:

RadProgressContext progress = RadProgressContext.Current;

progress.SecondaryValue = 1;

progress.SecondaryPercent = 1;

progress.SecondaryTotal = 100;

System.Threading.Thread.Sleep(3000);

progress.SecondaryValue = 50;

progress.SecondaryPercent = 50;

System.Threading.Thread.Sleep(3000);

//testing response

byte[] b = File.ReadAllBytes("c:\\image1.jpg");

Context.Response.ContentType = "image/jpg";

Response.AddHeader("content-disposition", "attachment; filename=image.jpg");

Response.BinaryWrite(b);

Response.End();

It works great except RadProgressArea is not hidden after method is complete. I guess this happens because of the abruption of the response stream, because it hides if I do not have last 5 lines of code.
Is there any workaround of this issue?

Thanks.

ProgressArea

updated answer on 30 May 2023

3 answers

231 views

RadGrid(Paging) in an UpdatePanel

I have a RadGrid(with Paging) in an updatepanel, and as a result the paging no longer works.
If I do the updatepanel away the paging works, unfortunatly this breaks the page layout.
Any ideas how to get a radgrids paging to work in an updatepanel.

Grid

answered on 26 May 2023

1 answer

226 views

Import Spreadsheet reading row by row

I need to import a spreadsheet into a dataset. The spreadsheets have rows and columns of data, but some of the columns are totaled at the bottom. I think this is giving me error when trying to use the DataTableFormatProvider.Export.

So I want to open the file and read the cells row by row. Are there any examples on how to open a spreadsheet and walk through it row by row?

Spreadsheet

answered on 26 May 2023