Dear Telerik Team,

I am using Telerik Rad Grid with GridDateTimeColumn. Please find below code pasted for reference. When this column as empty values and if user filters this date column it shows an error in IE. Also when user adds string like "test" in date picker in filterbar then nothing happens. Please also find the error message below.

Code:
<telerik:GridDateTimeColumn DataField="dtmTermDate" HeaderText="Termination Date" DataFormatString="{0:MM/dd/yyyy}"
SortExpression="dtmTermDate" UniqueName="dtmTermDate" HeaderTooltip="Termination Date" PickerType="DatePicker" ShowFilterIcon="true" ConvertEmptyStringToNull="true">
</telerik:GridDateTimeColumn>


Error in IE: 

Message: Sys.WebForms.PageRequestManagerServerErrorException: Specified cast is not valid.
Line: 4723
Char: 21
Code: 0
URI: http://localhost/Test/ScriptResource.axd?d=6gQs4Ep8lZdvCRTPnRQh8ewwwsj0oRdqcYcj0780GUlE7uHPItLaQBPSqRnOCJ6nFZOBafLdJr9TM4kY6q2ceFVLqoVgM5Nu1uJkbrcLvcU1&t=ffffffffec2d9970

Please help. Thank you.

Regards

Pathan L.

Hi:

I have a RadGrid where I have set EnablePostBackOnRowClick="true".  On special situation, however, when a user click on a specific row (e.g.: if the value on a key is "xyz"), then I don't want the postback to take place. 

I have tried to trap the OnRowSelecting event and was hoping that the following 2 lines of codes could cancel the postback.  However, they don't. The postback occur anyway.
            
eventArgs.set_cancel(true);
return false;

Is there a way to cancel a postback when EnablePostBackOnRowClick="true"?

Justin

I have one form with multiple RadWindows. Each RadWindow has a Radgrid. The grids settings are similar and each is added to an RadAjaxManger.

Grid 1 has it's next / previous buttons renders as follows:



Grid 2 has it's next / previous buttons renders as follows:


Why does grid 2 render its button as a submit and grid 1 doesn't? This is causing the RadAjaxLoadingPanel to not appear for grid 2.

Here is grid 2 declaration:

I am creating a RadGrid dynamically based on data that comes through.  The number of grids can vary.  What I want to do is allow for the collapsing of these grids.  For example, if 10 grids are created, the length is unwieldy and I would like to collapse all but the first, and have the user be able to expand them on click.  I have looked around and do not see a solution within the grid itself.  I would like to keep the header row as the column names, and use something above it sort of detailing the grid like "Number of Customers: #".

My theoretical solution was to use a RadPanelBar, inserting the grid into a RadPanelItem, and then into the PanelBar.  Looking at the demo of the calendar shows:


However, I am required to create this from the codebehind.  I've gone through quite a few iterations and can't seem to find the syntax.  I am guessing it has to do with ItemTemplate.InstantiateIn(grid), but do I have to extend the ITemplate or something?

Hi,

we have radcombobox inside a user control (scheduler AdvancedEdit to be exact from a sample on your site). We are populating the RCB with values easily enough and passing a value to set the selected item as follows

 public int EventTypeId
        {
            get
            {
              
                    return Convert.ToInt32(ResrcbActivityType.SelectedValue);
               
            }

            set
            {
                try
                {
                    RadComboBoxItem itm = new RadComboBoxItem();

                    if (value > 0)
                        itm = ResrcbActivityType.FindItemByValue(Convert.ToString(value));
                    if (itm != null)
                    {
                        itm.Selected = true;
                    }
               
                }
                catch (Exception ex)
                {
                }
                
            }
        }

When debugging the value when we set is non zero which is correct, the itm object is a valid radComboBoxItem object and itm.Selected = true; evaluates without error. However, the first item in the radcomboBox list is always displayed no matter what. I am guessing this is something stupid - please anyone?

Hello,

I want to maintain the gropheader state even though page has a postback event. I found link. Can you please provide it in VB since I am not able to hook up itemcommand event.

I hope someone can help

We have a problem with inline editing on a radgrid.  Code below.  Whenever we click on the Add Row icon, it looks like a postback is happening but no row gets added to the grid.  We're missing something, just can't tell what it is.

Help!

Hello, I have a grid-template-column defined like this( to save time and space i'll only put the column) :

And I want on the PreRender event, to extract the value of this column

The grid is already databinded! 

Any idea how to fix it? PLZ!!!

Thx a lot.

Hello,

Im having a problem using a ToolTip in a Radgrid that has paging enabled. Everything works fine on the first page, but just fails to work at the other pages. I have tried several things like checking the itemIndex + pagesize and on what i currently am.

I can not supply all the code, but this should do it. Its about the tooltip manager i think. ItemDataBound triggers the FillData.


Im pretty sure its a small thing i am missing.

Ive also used this around it.


The OnAjaxUpdate works fine since it works on the first page of the grid.

Hello,

I am using the latest version of controls. Observed that the text on the chart is blured. These charts are placed in radDock controls.

Is there any compression effect which makes the text blur ?
What could be the reason and how to fix this issue ?

Code used to create the chart at runtime: