Hello,

I have a form with 3 "drop down" selectors that are used to filter a data grid. They have quite a few records in them. The first one has 1800, second has 4100 and the third has 12800.

I have tried quite a few drop down objects. The default .net combobox control, then the raddropdownlist. The data returned from the query is fast but the binding to the control is slow for the .net object. The raddropdownlist is extremely fast and I was going to use that except for two things. First, I can't seem to get the control to "text align=left" so when a value that's wider then the control is chosen your cursor goes off the object. Second it doesn't have multiple columns. After I read the "Auto Complete" doesn't work for the multicolumncombobox, I wasn't going to use it.

But then I went through the demo and the filtering functionality is good enough to simulate auto complete even if the user still has to choose a selection, they sacrifice the auto population for the multiple column view.

I've tried to use the multicolumncombobox for the 1800 record control and it is slow to respond. Even after it binds the data, changing selections or filters has some hiccups. The box is bound to an .xsd with three columns in it and only refreshes when the form loads. Is there something I can toggle to improve performance of the suggestion popup box?

Alternately, if there is a way to set the "text align=left" on the raddropdownlist control, the speed of that object is unmatched and I would rather use that.

Thank you

Hallo Telerik Team,

I would like to know how I add a list of images to a ListView as Icon View. The path images are in a List<string> and they are into:
C://Documents/Pic/.
How can I do that? The images paths are saved in a dataTable in a database.

Thank you very much.

Best regards,

Alfonsina Mello

Hello!

In my desktop application I´m trying to implement telerik winform controls.

when I have used radbutton I´ve got a problem. I´m not able to click on the buttons.

This is the code I´ve used fot a button which is not clickable in my case:


The commented lines are because radbuttons don´t recognize those properties. They were used before with windows form controls.

do you know why button can´t be clickable?

Than you in advance.

I have a radGridView on a form which has cell and row validation implemented. No problem with that, works well.

The problem arises when I leave a row incomplete and then click on the Save button elsewhere on the form. The RowValidating code snippet below does not work, because once the focus moves away from the GridView to the Save button, the 'if (row != null)' check always returns false, and the RowValidating code is never executed.



How can I retain focus in the grid to ensure that the entire grid validates before allowing the user to leave the grid?

I see in the examples application that row details can be used for editing.

Specifically, it says "Row Details can also be used for providing a more convenient editing environment for the end user."

I can't find any documentation, examples, videos or posts about this functionality though. Has anyone used this or know where to find information on it?

Thanks.

Hello,

I am trying to format a cell. I am returning a Boolean value and instead of displaying a true or false in the cell I want to display a 1 for true and a 0 for false. I have this in the cell formatting event and I have two columns, the first returns the true/false value which I am reading and then displaying the 1,0 in another column. It works fin when the true/false column is visible but when I hide it I do not see the 1,0 in the other column.

Here is what I have:
​ //Cell formatting for start bit visual indication. The Start column has been hidden.
if (e.CellElement.ColumnInfo.HeaderText == "Start")
{
if ((bool)e.CellElement.RowInfo.Cells["Start"].Value == true)
{
e.CellElement.RowInfo.Cells["StartBit"].Value = "1";
}
else
{
e.CellElement.RowInfo.Cells["StartBit"].Value = "0";
}
}


Can this be done in the expression editor for the true/false column or what is the best way to achieve this.

Thank you,

chom

I am trying to add a page programatically and I am unable to see newly added page.

However, I have noticed the PageIndex is increasing.

The following is the code:

Telerik.WinControls.UI.RadPageViewPage page1= new Telerik.WinControls.UI.RadPageViewPage();

page1.Text = "Search";

RadPageView1.Pages.Add(page1);

What I found is Page1 visible property is set to false.

Can anyone help me on this.

Thanks
Charan.

Hi,
i want to know how can i retrieve values of edit recurrence form after i press button ok in edit appointment form
 to reflect in radscheduler and save values of recurrence form in sql db

We have a problem about the ‘RadRepeatButton’ on the touchscreen computer. We have tried the ‘repeat button application’ under the ‘buttons’ tab in the ‘Demo Applicaion – RadControls for WinForms Q3 2013’ on Windows 8 but the button works only when we double tap. When we tried the same application on Windows 7 the button works properly as soon as we tap on it. Does the ‘Rad RepeatButton’ not work on Windows 8? Or does this button works when you double tap on it. We think it should operate when you touch it.

The problem we experience occurs only when we tap on the  touchscreen. Other than that, when we use the mouse, it operates properly on both operating systems.

What can we do in order to make the rad repeat button operate when we tap and hold on it (not double tap) on Windows 8?

Hello everyone,


I have a little problem with your calculated columns.
I need to get all calculated cells with value less than 0, but when I iterate to get the values < 0 I get fewer results. I guess is something related to the moment when is refreshed the calculated value. 

how can I get the count of cells with value < 0

right now I am making a linq query like this:


but I get only 5 results. It seems that the refresh event of the calculated cells is fired when I scroll down, is that correct? can I force the program to calculate all of them?

thanks :)