Is there any easy way to convert RadDataFilter.Expression to FilterDescriptorCollection, so ill be able add it do CompositeFilterDescriptor of the RadGridView.FilterDescriptors.

RadGridView.FilterDescriptors.Add(new CompositeFilterDescriptor() { FilterDescriptors = RadDataFilter.Expression? });

Hello,

So I've come across this weird (possible) bug whereupon if you bing a datatable as datasource in a multicolumn combobox and then try to change the SelectedIndex before the combobox has been drawn to the UI, you get an Index out of range exception even though the index is perfectly fine.

If you wait for it to be drawn, then it works fine.

I've created a reproducible example where I have a form with a PageView control; there's an "Employee" class whose "NewPage(AvoidBug As Boolean)" function returns a PageViewPage which has a MultiColumn cb inside with a datatable as its DataSource.

The 1st button on the main form will add the PageViewPage control that the NewPage(False) function returned to the PageView and the mccb.SelectedIndex will be changed inside the NewPage() function (so before it's drawn to the UI)

The 2nd button will do the same, only calling the NewPage(True) will result in a Public Variable inside the Class being set to the Index we want the mccb.SelectedIndex to be changed to, but the mccb.SelectedIndex will NOT change. After the control is added on the main form, the mccb.SelectedIndex now changes, and no exception is produced.

*So does that mean the the DataSource indexing on a mbcb occurs only after the control is drawn/visible to the user?

*Another thing I noticed, even when the second button is pushed, the bug avoidance only works once. If you push it again (to add a second PageViewPage) then exception occurs again

*However, if you delete the first PageViewPage before pushing the second button a second time, essentially adding a first PageViewPage again, then the exception doesn't occur

Things will become much clearer by using the reproducible code: https://www.dropbox.com/s/4ccjr37n60mavt4/TelerikWinFormsApp1%20%282%29.rar?dl=1

Best regards,

Ioannis Mamalikidis

Hi.

I have a problem.

How can print a picture from a picturebox?

How can put correct object in Associateobjet to print it?

hi

is possible set scroll bar for one cell?

Hi!

I have a tri-state RadCheckBox and tried to change its intermediate state background color with the "SetThemeValueOverride", but nothing happens.

The code is the following:

checkBox.ButtonElement.CheckMarkPrimitive.CheckElement.GradientStyle = GradientStyles.Solid;

checkBox.ButtonElement.CheckMarkPrimitive.SetThemeValueOverride(FillPrimitive.BackColorProperty, Color.Black, "ToggleState=Intermediate", typeof(FillPrimitive));

What do I wrong?

Thank you,

Sandor

Hello there. 

This code returns negative MaxSize on 100% dpi, since it overflows int.

I use that code to descale some sizes on runtime per suggestion on the forum, also I have seen similar code in Telerik sources. When control receives negative max size it becomes invisible. You may want to investigate this cases. 

I use Telerik 2018.3.1016.20 with .Net 3.5 on Server 2008 R2 SP1.

Best regards.

Hello,

I am trying to streamline a process using radGridView that allows users to tab through only the necessary controls on a form. When they hit the radGridView control, they're currently tabbing through all existing cells. This is desired - but when they leave the last cell of an existing cell, we want to disable the ability to add a new row. We don't want to them to have to add a new row unless they click on "Click here to add new row". 

I've attached a screenshot of the behavior that I do not want. The yellow cells is from my conditional formatting. I'm not entirely sure what this row is because it doesn't have the default values that I've set when you click on "Click here to add new row".

How can I disable this behavior?

Thank you!