Hi!

How can I get the next or previous Date when i push the the Navigation button in code behind?
It's possible?

How to export the radgrid in xlsx format.

Hello,
I have a MDI web form and dynamically creating new radwindows inside that MDI form. I want to some operations on close (X) of that window. For that i have added RadWindow1.OnClientClose = "OnClientCloseClick"; . In OnClientCloseClick event, i have called __doPostBack() in order to implement my logic. On closing window, postback is working. But when i am checking  Request.Form["__EVENTTARGET"] , it's value becomes null. When i am doing the same in a normal aspx page(no windowmanager here), it is showing some value.
             In MDI form  i have added new window dynamically.
    protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                RadWindow RadWindow1 = new RadWindow();
                RadWindow1.ID = "RadWindow1";
                RadWindow1.VisibleOnPageLoad = true;
                RadWindow1.OnClientClose = "OnClientCloseClick";
                RadWindow1.NavigateUrl = String.Format("Default.aspx?ID=" + Request.QueryString["ID"]);
                RadWindowManager1.Windows.Add(RadWindow1);
}
}
JS
 function OnClientCloseClick(sender, args) {
                   __doPostBack('SaveSettingOnClose', 'OnClose');
                   }
function __doPostBack(eventTarget, eventArgument) {
           document.Form1.__EVENTTARGET.value = eventTarget;
           document.Form1.__EVENTARGUMENT.value = eventArgument;
           document.Form1.submit();
        }
HTML
<input type="hidden" name="__EVENTTARGET" value="">
    <input type="hidden" name="__EVENTARGUMENT" value="">

---------------
In Default.aspx (new window created)
in page load
 if (Request.Form["__EVENTTARGET"] == "SaveSettingOnClose")
            {

                SaveSettingOnClose();

            }
Here Request.Form["__EVENTTARGET"] becomes null. so control is not going inside the if block.

Please provide me solution to solve this issue.

Thanks
Abhi

Drag and Drag from RadTreeView inside user control to RadEditor don't work well.
I was able to do drag and drop but all items from tree view always paste at the beginning not on the cursor. This works w/o a problem when my treeview is in the same page with the editor. Also I cant do drag and drop to both textbox and radEditor, and lastly how can I do double click to paste items to both controls? My InsertNode don't work well.

Any help would be greatly appreciated.

Here's my code:
My User Control

My Page:

Thanks,
Ryan

Stand alone dialogs are not working anymore when switching to 2012.2.724.40

I rebuild with your KB  article code and keep getting:

Bericht: Object reference not set to an instance of an object.

[NullReferenceException: Object reference not set to an instance of an object.]
   Telerik.Web.UI.Editor.DialogControls.ImageManagerDialog.OnLoad(EventArgs e) +232
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207

Please help

Hello,

I have a RadGrid that binds to a collection of custom object. In my application users can insert/update the rows of the grid and the changes will not be persisted to the database until they click on a save button. Each row has a key column containing the key value (ProviderLanguageID) assigned to each of the object when data is persisted to DB.

The grid's markup is like this:

When multiple rows are inserted to the grid, and one of the rows is subsequently edited (before saved to DB), the edited row is accessible in UpdateCommand event like this:

I'm using the key value to locate the actual custom object in the collection stored in the page.

This works if each of the record already has a key. When a new record is created, the key value is empty (Guid.Empty). So we'd have to use different means to locate the custom object. I'm thinking of comparing the SavedOldValues with the saved values to locate the actual object.

I notcied that e.Item.DataItem is null in UpdateCommand event, but not in ItemDataBound event. Is there any way we can access the custom object the row being updated is bound to?

Thanks in advance,
Makoto

Hi,

I am trying to ensure that when the user clicks on a link within a pager control, that a control on the page (a datalist) is updated. So far the AJAX works fine, however the loading panel won't show up.
 
I've tried programmatically adding the AjaxSettings in the ItemDataBound event of the repeater (as well as the ItemCreated, and PreRender events) to each of the Hyperlinks within the RepeaterItem, however I'm continually getting either an 'Object reference not set to instance of object' error, or a 'value cannot be null error'.


And the code behind


Any ideas?

I am moving a web page with a RadGrid on it from an older app (v2009.1.527.35) to a more recent app (v2011.2.915.35).  They are 2 different VB.Net solutions.  I want to maintain the same look/style of the grid and it appears the grid width and footer have some rendering issues.  Attached (v2009.jpg) is the original appearance of the grid I need to replicate. Attached (v2011.jpg) displays the issues in the more recent version of the app.

The default Skin for RadGrids in the v2011 app is already using Vista with modifications to the Telerik_Styels.css.  v2009 also had a default skin using Vista.  I wanted to use a clean copy of the css that has .RadGrid_Vista so I copied all of .RadGrid_Vista from the v2011 skins folder, pasted into my Telerik_Styles.css, and renamed the class to .RadGrid_VistaSOS.  I also have a skin in v2011 to turn paging on in the footer and use the older paging icons.  This skin uses Skin "VistaSOS".

Here is my RadGrid markup:


Here is my skin:


As I already stated, "VistaSOS" is just a clean copy of "Vista".  I need help getting the grid width to fill in wider and the page selector drop down is not rendering correctly. 

Thanks,
Rob

I have two radpanes both having contenturl to different aspx pages. 
One of the page contains the tree controls and the another page contains the grid control. So the structure would be two iframes as RadPane with contenturl translates to an iframe. 
Now the requirement is to drag an item from the grid which is in page1 to the tree which is in the page2. Is it possible for telerik's drag and drop framework to get this functionality out of the box ?
Can you please reply me ASAP as we have some very important decisions dependent on this. 

Hi,

I am using a RadSlidingPane. It works just fine if the pane is docked, but as soon as i undock it and expand it again (just expand it, not dock it), the content shrinks to a few pixels on the left side of the pane, leaving the rest of it blank white.
I've got some sample code right here:


I can tell that the problem has to be connected to the RadSplitter3, because I used the .css attached to it for a border on the right side of it. However, that border shows up, but only after the already mentioned few pixels on the left side of the SlidingPane, seemingly limiting the whole content.

Thanks in advance,
Robin