I was working with the previous version of this control but for some reason it would not render some of our pdf files.  I upgraded to the latest version but now I am running into a new issue.  I can't seem to clear the document from the viewer.  I have attached some sample code that will reproduce the NullReferenceException errors I am getting.

WPF Code:

C# Code:

I could not attach the pdf I was using but any pdf will reproduce the problem.  Please let me know if there is some workaround for this.

Ideally it would be great if the PdfViewer had a Clear() function that would release all resources referenced and displayed.

Thanks,
Lee Keel

Hi, 

Is it possible to transform the RadGridView by 90degrees so that the column headers are displayed down the side? I have a lot of headers but not much data so it makes sense to flip the orientation.

Thanks for your help!

I'm working on a new WPF application, and am making extensive use of the RadMaskedNumericInput control. I've defined a couple of validation classes based upon the ValidationRule class. I'm using this in every instance where I use a RadMaskedNumericInput control. I want it such that if the RadMaskedNumericInput control shows up and the user does nothing with it, then the lowest value is saved back to the database. This isn't happening. What's happening is a null is being saved to the database. Now, I know that I could define a default value in the table definition, and perhaps that's what I'll have to do, but I'd like to know if there's a way to make the RadMaskedNumericInput control automatically save the lowest value (in all my cases that happens to be a 0, but it could technically be any numeric value) to the backend database. You see, it's weird because the RadMaskedNumericInput control is showing a 0 in it, when it comes up, but I've found that in testing if I do nothing with that control, or just tab to it and then past it, a null is what's saved to the database. That's counterintuitive.

i'm using RadGridView in my application, for displaying all users registered in my app, also i can edit them. When i started editing and wanted to move to another screen i need to "close" or "end" editing mode programmatically(on my ViewModel). Help me how to handle this.

Hi

The dataform works well when AutoGenerateFields is true, but once i turn it off and supply it with 3 different DataTemplates it throws the Exception "Parameter count mismatch", the Object implements  IDataErrorInfo, IEditableObject and the problem seems to be the
IDataErrorInfo, any ideas
thanks

   at System.Reflection.RuntimeMethodInfo.InvokeArgumentsCheck(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)
   at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index)
   at Telerik.Windows.Data.ItemPropertyInfoExtensions.GetValue(ItemPropertyInfo itemProperty, Object item) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\ItemProperties\ItemPropertyInfoExtensions.cs:line 105

Hi folks.

I have a treelist control on my page where I load the items dynamicaly. At each section I'd like to have aggregated sums at the bottom. I thing I have all set correctly regarding online demos but the result footer are all empty.

I use this code:

     <telerik:RadTreeList ID="rtlData" AllowLoadOnDemand="true" runat="server" AutoGenerateColumns="false"
         OnChildItemsDataBind="RadTreeList_ChildItemsDataBind" OnNeedDataSource="RadTreeList_NeedDataSource"
          DataKeyNames="CssClass,ParentId" ParentDataKeyNames="CssClass,ParentId" OnItemCreated="RadTreeList_ItemCreated"
         OnItemDataBound="RadTreeList_ItemDataBound" ShowFooter="true">
          <Columns>
               <telerik:TreeListBoundColumn DataField="ProductCatL3" UniqueName="ProductCatL3" HeaderText="Produkt L3">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="ProductCatL2" UniqueName="ProductCatL2" HeaderText="Produkt L2">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="ProductCatL1" UniqueName="ProductCatL1" HeaderText="Produkt L1">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="State" UniqueName="State" HeaderText="Stav" DataType="System.Decimal" DataFormatString="{0:C2}" Aggregate="Sum">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="Avg1Month" UniqueName="Avg1Month" HeaderText="Průměr 1 měsíc" DataFormatString="{0:C2}" Aggregate="Avg">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="Avg3Months" UniqueName="Avg3Months" HeaderText="Průměr 3 měsíce" DataFormatString="{0:C2}" Aggregate="Avg">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="ApprovedLimit" UniqueName="ApprovedLimit" HeaderText="Schválený limit" DataFormatString="{0:C2}" Aggregate="Sum">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="CssClass" UniqueName="Css" HeaderText="CSS" Visible="false">
               </telerik:TreeListBoundColumn>
               <telerik:TreeListBoundColumn DataField="ParentId" UniqueName="ParentId" HeaderText="ParentId" Visible="false">
               </telerik:TreeListBoundColumn>
          </Columns>
     </telerik:RadTreeList>

What am I doing wrong that no footer are calculated and it only shows empty fields?

Sincerely
Scarlaxx

Hello!

I need real-time update. 
When I updated properties, everything was ok, but there were problems with sorting, filtering and grouping. 
According to your demo, I start to replace whole object. 
Everything works fine, but scroll's behaviour becomes very strange.

There is example: Sample

1. If you scroll grid for a while, you will see scroll "jumps" sometimes.. Here it is small jump, but in my app it is more noticeable.

2. If there are enough columns for horizontal scroll, it will also jump from right side, and it would be very difficult to use last column.

What should I do?

Thanks. 

Hi ,
I am using RadRichtextBox for print of RadGridView Data.Print is working but All the column in RadGridView  is not cmming.Its get cuts from end.
 My reqirement is when there is more column then those column should appear automatically in the next page consecutively or next document.

Please find my attached document also.And please help me it is very urgent ..

Thanks in advanced...
Regards
Rahman

public void test()

        {

            LineSeries line1 = new LineSeries() { };

            for (int i = 0; i < 10; i++)

            {

                line1.DataPoints.Add(new Telerik.Charting.CategoricalDataPoint() { Value = i });

            }

 

            line1.MouseLeftButtonDown += (sender, args) => MouseLeftDown(sender, args, chart1);

 

            chart1.Series.Add(line1);

        }

 

        public void MouseLeftDown(object sender,MouseButtonEventArgs args,RadCartesianChart chart)

        {

         

        }

Can I use MouseEvent to get the  datapoint of line?

I set  MouseDown in LineSeries and I want to add datapoint where I trigger this event.

But I can't find any data about  the position of line. 

Use LabelInterval can control  regular pattern of label.

If I only want to show the last label? (attachment1)
if I wnat to show the  Irregular label? (attachment2)