Hi,

I've a RadTabControl with some RadTabItem and one of them contains a RadGridView with a lot of content (I bind an ObservableCollection).
When I switch from any tab to this one it always takes some time (a few seconds) so it seems that in some how the gridview is loaded again.

Since this list is static, are there a way to improve the performance?

Hi,

i use a RadTabControl with a AutoCompleteBox on it. Here i select a customer and fill the TabItem with data.
After changing the Tab the TabItem is empty? the AutoCompelteBox is empty, too!

The Main Problem is that i create each tab by code and in each tab a usercontrol is loaded. Now i select a customer
and display the data in the tabitem. When i change the tab the first one is empty again when i come back.

What is to do to hold the information in the TabItem?

THanks
Best Regards
Rene

Hi,
I want to "protect" mergefield inside my document, to prevent user to change the display of the field directly in the richtextbox(i use a specific editor to edit the value of my mergefield).

I tried to write a procedure to put or remove readonly on my mergefield, but I have some trouble to make it work :

private void SetMergeFieldReadOnly(MergeField field, RadRichTextBox richTextBox, bool isReadonly)

        {

            var fieldEnd = richTextBox.Document.EnumerateChildrenOfType<FieldRangeEnd>()

                .FirstOrDefault(fs => (fs.FieldRangeStart.Field is MergeField)

                                   && (((MergeField)fs.FieldRangeStart.Field).PropertyPath == field.PropertyPath));

            if (fieldEnd != null)

            {

                var fieldStart = fieldEnd.FieldRangeStart;

                var posFieldStart = new DocumentPosition(richTextBox.Document);

                var posFieldEnd = new DocumentPosition(richTextBox.Document);

                posFieldStart.MoveToInline(fieldStart);

                posFieldEnd.MoveToInline(fieldEnd);

                if (isReadonly) // add readonlyrange

                {

                    richTextBox.Document.Selection.Clear();

                    richTextBox.Document.Selection.SetSelectionStart(posFieldStart);

                    richTextBox.Document.Selection.AddSelectionEnd(posFieldEnd);

                    richTextBox.InsertReadOnlyRange();

                }

                else // remove readonlyrange

                {

                    // 1st method - doesn't work.

                    //richTextBox.Document.Selection.Clear();

                    //richTextBox.Document.Selection.SetSelectionStart(posDebField);

                    //richTextBox.Document.Selection.AddSelectionEnd(posFinField);

                    //richTextBox.DeleteReadOnlyRange();  // <-- no error but the field is still readonly after that.

 

                    // 2nd method - works but not properly

                    var readOnlyRangeStarts = richTextBox.Document.EnumerateChildrenOfType<ReadOnlyRangeStart>();

                    var posDebReadOnly = new DocumentPosition(richTextBox.Document);

                    var posFinReadOnly = new DocumentPosition(richTextBox.Document);

                    foreach (var readOnlyRangeStart in readOnlyRangeStarts)

                    {

                        if (readOnlyRangeStart.End != null)

                        {

                            posDebReadOnly.MoveToInline(readOnlyRangeStart);

                            posFinReadOnly.MoveToInline(readOnlyRangeStart.End);

                            if ((posFinReadOnly >= posFieldStart) && (posDebReadOnly <= posFieldEnd))

                            {

                                richTextBox.DeleteReadOnlyRange(readOnlyRangeStart);   // remove the protection on ALL the readonly range !!!

                            }

                        }

                    }

                }

            }

        }

I wonder if there are not some easier way to do this ? (Or I might be doing something wrong ?)

At the moment, I can only set/unset readonly ALL the mergefield of the document. It works, but sadly it's really slow ...

Are they're some way to "lock" the fields without using some ReadOnlyRange ?

Thanks.

Hello Telerik team,

 

I’m having trouble with hosting an Addin UI in RadDock.

I wrote a demo to reproduce this issue. download demo here
You can see if you unpin the RadPane, you will no longer be able to focus the textbox. I’m wondering if this is a known issue and is there any workaround for this?

I have read this (http://www.telerik.com/community/forums/wpf/docking/wpf-frame-control-not-visible-in-floating-window.aspx) and this (http://www.telerik.com/community/forums/wpf/docking/radpane-not-displaying-webbrowser-content-while-floating.aspx) threads to make the UI display in RadPane. But when RadPane is in unpinned state, the UI inside it is not able to be used. When I click it, the RadPane automatically hides.

 

 

Hello,
i want to display a matrix that holds a weighted graph, so for example:
               Point A   Point B    Point C
Point A     10             1          15
Point B     15             8           8
Point C     5               10         1

The pivot control looks very nice and it is also possible to create categories and collapse them, 
but how can i edit the cells? 
It would be enough to double click on a cell and edit it in another window ...
thanks!

HI,

i use your AutoCompleteBox from you wpf-example. It works fine. In your "Contatc.cs" are two properties, firstname and lastname.
Your TextSearchParh in the xaml file ist "FirstName".

Is it possible to you both properties "FirstName" and "lastName"??

Thanks
Best Regards
Rene

Good afternoon.

Are trying to run an event in instaciado RadWindow inside a usercontrol, but returns me an error: Object reference not set to an instance of an object.

what could be the cause?

Hi Everyone,

     Is there any way to get the total size (width/height) of columns/rows of a Pivot grid? 
     See attached file.

Thanks,
     

Hi,

i've got a strange behavior when i try to remove a filter by using RadDataFilter's UI remove button (red cross).
Whenever i remove any CompositeFilter other than the root Filter, i've got the following exception.

System.NullReferenceException wurde nicht von Benutzercode behandelt.
  HResult=-2147467261
  Message=Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
  Source=Telerik.Windows.Controls.Data
  StackTrace:
       bei Telerik.Windows.Controls.Data.DataFilter.CompositeFilterViewModel.get_LogicalOperator() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Controls\Data\DataFilter\CompositeFilterViewModel.cs:Zeile 47.
  InnerException:

I am using the 2013 Q1 SP1 controls. RadDataFilter is used in "unbound" mode.
The source property ist bound an IEnumrable<T> and AutoGenerateItemPropertyDefinitions is set to true.
The IEnumrable<T> has no items at all. It's only for auto generating the property definitions.
Even if i set no source property on RadDataFilter the above exception is thrown.
My RadDataFilter sits inside a Grid, the Grid itself is hosted by a UserControl which gets injected by Prism Region Manager.
When i use RadDataFilter directly on a Window without any Prism Regions Stuff then there seems to be no problem !?

Kind Regards
Kim 

Hello,
is it in some way possible that RadDataForm uses the IDataErrorInfo interface to validate user input and to show the according error messages?

Regards