Questions on UI for ASP.NET AJAX Forum

3 answers

1.1K+ views

How to block malicious files while uploading

Hi ,

I encountered a scenario i.e. where we have to stop uploading of .exe or .bat files when their extension is changed to acceptable extension (.txt,.html,.htm,.odt,.rtf,.doc,.docx). I have tried to find a solution by using .NET code where I have used header codes of different file extensions, but header codes for .html and .htm get changed and doesn't seem to have a fixed header code. I have used Mime/Extension type but it didn't work. Looking for a solution through Telerik Controls.

Thanks,
Chaitanya.

Upload (Obsolete)

answered on 30 Jul 2014

5 answers

187 views

The handle is invalid

We get this error on occasion in our application and was wondering what may be causing it. Any help/guidance would be appreciated.

System.IO.IOException: The handle is invalid.

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.__Error.WinIOError()
at System.Threading.EventWaitHandle.Set()
at Telerik.Web.UI.RadScheduler.resourceTypeControl_DataBound(Object sender, EventArgs e)
at System.Web.UI.WebControls.BaseDataBoundControl.OnDataBound(EventArgs e)
at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data)
at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback)
at System.Web.UI.WebControls.DataBoundControl.PerformSelect()
at System.Web.UI.WebControls.BaseDataBoundControl.DataBind()
at Telerik.Web.UI.RadScheduler.BindResourcesFromDataSource()
at Telerik.Web.UI.RadScheduler.PerformSelect()
at System.Web.UI.WebControls.BaseDataBoundControl.DataBind()
at Telerik.Web.UI.RadScheduler.EnsureDataBound()
at Telerik.Web.UI.RadScheduler.CreateChildControls(Boolean bindFromDataSource)
at Telerik.Web.UI.RadScheduler.CreateChildControls()
at System.Web.UI.Control.EnsureChildControls()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Scheduler

answered on 30 Jul 2014

3 answers

97 views

IE10 vs. Firefox

Hi!

while testing the RadDiagram I noticed that the text within the shapes is higher aligned when using the Internet Explorer 10. Firefox renders the text vertically centered. Does anybody know a CSS-Trick to "fix" the IE10-behaviour?

Best regards,
Hans

Diagram

answered on 30 Jul 2014

1 answer

189 views

Display the chart series hover tooltip always

I have a radhtmlchart in my page. What I want is I want the tooltip which is displayed on hovering the series to be always visible. How can I do this?

Chart (HTML5)

answered on 30 Jul 2014

3 answers

127 views

[Solved] Remove child item through JavaScript.

Hi,

I want to remove a child menu item from my RadMenu using javascript but the script is not working well. Here is the code I tried.

function RemovePremium()
{  
    var menu1 = $find("<%= RadMenuUser.ClientID %>");  
    var menuItem1 = menu.findItemByText("Get Promo");
    if (menuItem1)  
    {             
        menu1.trackChanges();    
        menu1.remove(menuItem1);
        menu1.commitChanges();

}
} 



Please give your suggestions and help.

Berk.

Menu

answered on 30 Jul 2014

5 answers

412 views

[Solved] Datepicker with client date format

I want the datepicker to use the client settings for date format.
This works if I run it from visual studio. Once I publish it though the datepicker no longer reflects my system date formats.

On my system the date format is yyyy-mm-dd and I see this format used when running from visual studio.
When I run it after publishing it - I see dd/mm/yyyy

What do I have to do to make this work for published and installed sites?
What am I missing?

I have attached a very basic sample project that whipped up to test it and it also does this in the same way as our main app.

Thanks for your help.

I have also pasted the entire web page below (not very long)

01.<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Default" %>

02.

03.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

04.

05.<html xmlns="http://www.w3.org/1999/xhtml">

06.<head runat="server">

07. <title></title>

08. <telerik:RadStyleSheetManager id="RadStyleSheetManager1" runat="server" />

09.</head>

10.<body>

11. <form id="form1" runat="server">

12. <telerik:RadScriptManager ID="RadScriptManager1" runat="server">

13. <Scripts>

14. <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />

15. <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />

16. <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />

17. </Scripts>

18. </telerik:RadScriptManager>

19.

20.

21. <telerik:RadDatePicker ID="dte_startDate" runat="server"></telerik:RadDatePicker>

22.

23. <script type="text/javascript">

24. //Put your JavaScript code here.

25. </script>

26. <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

27. </telerik:RadAjaxManager>

28. <div>

29.

30. </div>

31. </form>

32.</body>

33.</html>

Calendar

answered on 30 Jul 2014

1 answer

127 views

Inline editing without a full grid rebind?

I have a RadGrid containing anywhere from 26 records to a few hundred. Unfortunately, there are some complex data manipulations going on to fill the datatable which i then bind to the grid. This can take 2 seconds for the 26 records and up to 12 seconds for the several hundred records. It's fine for first hit on the page but I want to be able to click edit and cancel without doing a grid rebind. Is this possible?

Grid

answered on 30 Jul 2014

1 answer

424 views

show notification after update or insert

Hello.
excuse me if my english is not good .
i have a radgrid and after update command or insert command i use this code to show notification.

RadGrid1.Controls.Add(New LiteralControl ("My Text"))

it show just a text line under radgrid .
i want show a jquery popup notification like http://simplemodal.plasm.it/

how can i do this ?
thank you

Grid

answered on 30 Jul 2014

8 answers

943 views

PDF and Image Preview???

Hello everyone!

I have some doubts about how to upload and show a preview of a pdf and image, in the case of the image (jpg, png, etc) its not complicated, but I really dont have idea how could I preview a pdf file.
My functionality is the folowing:

In my aspx page the user can upload an image or a pdf (just one) and view the preview of the image or the pdf, then when I click save, I store the image and the pdf in my azure.
Please if someone can help me or give me any clues how could I do this.
Thanks in advance!!!!

AsyncUpload

answered on 30 Jul 2014

4 answers

268 views

RadMultipage with UserControl Javascript not loading

I have a TabStrip of 6 tabs and for each tab i have one user control defined.
in each user control i am rendering radgrid. In each user control i have some javascripts written in it.
In these javascript i am finding object of radgrid mastertableview and using it for filter templates .
I have set property RenderSelectedPage only to true
My problem is, javascript is rendered for the first time page load (first page view i.e. my default pageview)only.
but for subsequent tab selection respective java-scripts are not rendered because of which it does not get subsequent radgrid objects
here i am using server tags like <% ...%> to find radgrid mastertableview objects in java scripts.

Please suggest a solution

TabStrip

answered on 29 Jul 2014