Questions on UI for WPF Forum

1 answer

165 views

GridViewMaskedTextBoxColumn throwing validation errors for numeric input with MaskType="Numeric"

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

TreeListView

answered on 27 Jul 2012

13 answers

631 views

Force grid view validation

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

GridView

answered on 27 Jul 2012

5 answers

303 views

Connection manipulation points

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.

Diagram

answered on 27 Jul 2012

1 answer

209 views

Using ValueSource

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:

var lineSeries = new LineSeries();

lineSeries.CategoryBinding = new PropertyNameDataPointBinding() { PropertyName = "TimeStamp" };

lineSeries.ValueBinding = new PropertyNameDataPointBinding() { PropertyName = "Value" };

lineSeries.ItemsSource = (chart.Chart as GuiAnalogQueue).Records;

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

<telerik:Needle x:Name="needle" IsAnimated="True" Value="{Binding Value}"/>

or

<telerik:Needle x:Name="needle" IsAnimated="True" Value="{Binding chart.Chart.Value}"/>

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

Kevin

Gauges

answered on 27 Jul 2012

1 answer

113 views

Programmatically changing CompositeFilterDescriptor records

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.

GridView

answered on 27 Jul 2012

1 answer

129 views

Merged Column Headers / Column Groups

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?

TreeListView

answered on 26 Jul 2012

1 answer

96 views

Get a RadListItem with dbl-click

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???

ListBox

answered on 26 Jul 2012

1 answer

228 views

Filtering ItemsSource

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

ComboBox

answered on 26 Jul 2012

1 answer

154 views

Looking for sample with RadRibbonView and RadDocking controls

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

Docking

answered on 26 Jul 2012

1 answer

128 views

Cell Selection Bug

Hello,

Not life threatening or anything, but when you select a row, and then reload the gantt tasks, the non-tree columns remains greyed like they are selected (see attached image). This is reporducable in your demos (easily in the "scrolling performance" one. This is important because if you reload all of the tasks, that row may not corresond to the same task, and it is unexpected that the row should continue to be highlighted. Side note, ganttview.SelectedItems.Clear() does not work, it just makes it so everything stays selected. Is there a way of solving this, either from code-behind or editing the style xaml file?

Thanks,
Eric

GanttView

answered on 26 Jul 2012