In the attached very simple project, the main window has a single RadExpander containing a single RadNumericUpDown control. The Viewmodel adds a validation rule which always sets the only property (MyValue) as failed. (I tried to attach files but your system no longer lets me!)

When the RadExpander.IsExpanded property is set to false (as in the attached code), and you then expand it, you'll see the RadNumericUpDown appears normally, without any validation error adornment.

If you change RadExpander.IsExpanded property in the xaml to true and you run, you'll see the RadNumericUpDown has the validation error adornment and shows the error tooltip.

Why? If you use either Snoop or the VS tools, you'll see that the RadNumericUpDown has the error in both cases.

I'm using 2017.3.1018.45 on Win 10 x64.

Thanks.

-John.

Hi,

I have a button outside the RadGridView. What I want is to click the button to insert new record to the RadGridView. The problem is that I have a DataPager. It seems to prevent me to insert a new record because I have page size set up.

Or maybe I have to go to last page once I click this button? How to do it?

Hello!

I'm troubled, by export to image RadCartesianChart3D, don't display labels, is this a common problem?

In the attached very simple project, the main window has a single RadExpander containing a single RadNumericUpDown control. The Viewmodel adds a validation rule which always sets the only property (MyValue) as failed. (I tried to attach files but your system no longer lets me!)

When the RadExpander.IsExpanded property is set to false (as in the attached code), and you then expand it, you'll see the RadNumericUpDown appears normally, without any validation error adornment.

If you change RadExpander.IsExpanded property in the xaml to true and you run, you'll see the RadNumericUpDown has the validation error adornment and shows the error tooltip.

Why? If you use either Snoop or the VS tools, you'll see that the RadNumericUpDown has the error in both cases.

I'm using 2017.3.1018.45 on Win 10 x64.

Thanks.
-John.

In the attached very simple project, the main window has a single RadExpander containing a single RadNumericUpDown control. The Viewmodel adds a validation rule which always sets the only property (MyValue) as failed. (I tried to attach files but your system no longer lets me!)

When the RadExpander.IsExpanded property is set to false (as in the attached code), and you then expand it, you'll see the RadNumericUpDown appears normally, without any validation error adornment.

If you change RadExpander.IsExpanded property in the xaml to true and you run, you'll see the RadNumericUpDown has the validation error adornment and shows the error tooltip.

Why? If you use either Snoop or the VS tools, you'll see that the RadNumericUpDown has the error in both cases.

I'm using 2017.3.1018.45 on Win 10 x64.

Thanks.
-John.

Hi all,

I have some padding and margin problems about treeview items. I wanted to mark it at my attachment image. I'm having trouble about the red and the yellow marked spaces. I tried many things but can not succeed.

Here is my treview : 

Here is my custom styles : 

Thank you in advance.

Dear,

I'm using RadGrid to display a filename and a filepath. 

Everything work fine (capture.PNG) when i click on the filename. The document open, but when i change the file name or i delete the file on my desktop, my program crash...

How can i handle this error?

Regards,

                    GridViewDataColumn cFullCompanyName = new GridViewDataColumn();
                    GridViewDataColumn cFileName = new GridViewDataColumn();
                    GridViewDynamicHyperlinkColumn cFilePath = new GridViewDynamicHyperlinkColumn();

                    cFullCompanyName.DataMemberBinding = new Binding("FullCompanyName");
                    cFileName.DataMemberBinding = new Binding("FileName");
                    cFilePath.DataMemberBinding = new Binding("FilePath");

                    cFilePath.NavigateUrlMemberPaths = "FilePath";

                    documentPage.gvDocument.Columns.Add(cFullCompanyName);
                    documentPage.gvDocument.Columns.Add(cFileName);
                    documentPage.gvDocument.Columns.Add(cFilePath);

Hi,

I want to add a drop down list with predefined RowGroup, ColumnGroup and Aggregate Descriptions to ease switching between different data arrangements via RadPivotFieldList. 

I tried to check if I can add such descriptions to the filter list example, but I couldn't find the proper namespace for FiltersCollection and FilterItem in my application. Thus they're giving "type not found" errors. In the example they are defined as below.

...
        xmlns:local="clr-namespace:Telerik.Windows.Examples.PivotGrid.Common.Filtering"

...

        <local:FiltersCollection x:Key="Filters">
            <local:FilterItem DisplayName="&lt;none&gt;" />
            <local:FilterItem DisplayName="The name is in the list: 'Copy holder', 'Glare filter'.">
                <local:FilterItem.GroupFilter>
                    <pivot:LabelGroupFilter>

...