I've created a CustomGridViewToggleRowDetailsColumn class that descends from GridViewBoundColumnBase.  Its purpose is to display the row details toggle control only if the row in question contains data to be displayed in the row details.

In order to speed up the retrieval of data from my database, I have added a boolean flag to the view model object that is displayed in the RadGridView that indicates whether the object has data for the row details.  This flag is set when the row is retrieved from the database.  However, I do not want to retrieve the data for the row details at the same time.  Rather, I want to wait for the user to click on the button to expand the details and go get the data at that time.  The underlying View Model objects implement INotifyPropertyChanged, so the WPF controls get notification of changes.

The CustomGridViewToggleRowDetailsColumn class has a Click event that I want to program.  When the user clicks on the button, I want the code to check to see if the detail data has been retrieved from the database yet, and if not, to go and get it.

Here's the definition of the CustomGridViewToggleRowDetailsColumn class:


Here is the Click event handler that I wrote that is called when the user clicks on the toggle button for a row that has details to be displayed:


The problem is that the parameters to the ExpandAlarms_Click method always refer to the same row, no matter which row I click on.  I think there is something wrong, either in the ToggleButton_Click method or in the CreateCellElement method.  But I don't know what the issue could be.  I think I need to save the Cell passed to the CreateCellElement somewhere other than were I'm saving it now, but I'm not sure where that would be.

Please help

Tony

Hello,

I have the following column defined in my xaml code

<telerik:GridViewMaskedTextBoxColumn Mask="P1" MaskType="Numeric" 
DataMemberBinding="{Binding CurrentAllocationWeight}" 
DisplayIndex="1" IsReadOnly="True" DataFormatString="{}{0:P1}"  
Header="% Of Total" ColumnGroupName="CurrentAllocation"/> 

The bound property is a null-able decimal value. I have no other validation in the code-behind. When I try to enter a value in the cell, I get a validation error: "DecimalConverter cannot convert from System.Double".

How should I fix this, so that the user can enter say, 5.5, and it would display that value as "5.5%" in the cell?

Hasanain

Hi all,

I have two grids. Grid A has data where some of the columns have drop downs. Grid B is used to administrate the lists in the those drop downs.

When a change occurs in Grid B then the values in Grid A are updated using INotifyPropertyChanged. However, I also want validation to kick in (Its possible to delete values from Grid B but Grid A needs to have appropriate values)

For basic cell level validation I have used the cell validating event and that works pretty well. If possible, when Grid B has been updated I would want cell validation to start.

Thanks in advance

Arthur

Hi.

I'd like to be able to add more manipulation points to a RadDiagramConnection programmatically. Is this possible and how would I go about doing it?

Regards.

Let me edit this to be more clear.  I am trying to dynamically change the values of the needle, thus making it Animated and have it move according to the live data being stored.  I have live data that is being thrown in a Records (ObservableCollection<QRecords<double>>) which (QRecords) has the properties "Value" and "TimeStamp" in it.  In the ChartView control, I use:


to add a new LineSeries accompanied with addition VerticalAxes.  This is the binding that takes care of all my data changing dynamically. 

Now, I'm trying to apply this data to allow the user to user a Gauge to display the same data, just in a different fashion (Gauge vs. ChartView).  However, when I do something like or

My needle doesn't move at all, whatsoever.  What steps should I take to achieve changing the value of the Gauge's needle?

Kevin

I am currently working on a project which uses the RadGridView, part of the required functionality is to hide and show records based on various user interaction with the grid, it would appear the best way to get this to work is using a CompositeFilterDescriptor and add and remove the filters as required.

My issue is as follows, the project has been written using MVVM and from all the reading i have done it doesn't seem possible to use binding for the indvidual FilterDescriptor lines, the RadGridView in question is contained with in a datatemplate (and there maybe more than one on the screen at one time) so it's can't be accessed directly from the code behind.

So my question is, is there anyway of changing the FilterDescriptor lines with out directly accessing the grid from the code behind.

 

Is it possible to have Column Groups in Tree List View like we have it in Grid View?

Do you have an example project that does that please?

Hi,

I have a radListcontrol with several items inserted at runtime....

Atruntime I like get the RadListItem object where I used the dobleclick on it.....

how i can do that???

Hi,

here is the situation... In my application, I have two combobox, one for department selection and one for billing code selection. When my dialog is loaded, I call my back-end (wcf call) to get all billing codes for all existing departments. I would like to know if it's possible to filter data in my billing code combobox base on the combobox department selection changed without calling my back-end again?

Thank's

Is there a Telerik sample application that uses the ribbon with the docking component all inside a ribbon window? I like the way the Telerik Work Item Manager is done, but don't see a sample for how we can achieve the same layout. In my prototype application, I'm having layout issues and things don't seem to want to work together well.

Thanks in advance...
-Tony