I am using 2013 q3 of the radgridview, and I need to validate my object in the row validating and cell validating event because some properties are required field.  In the row validating event, I'm explicitly clearing all the validationResults and appending 1 or more new validationresults to certain properties.  However, I found that Cell.Errors are not cleared when I clear validationResults, instead they are appeneded everytime I add a new validationresult in the row validating event.  How do I clear individual cell errors?


//rowvalidating event
if(conditionNotValid)
{
var r = param as Telerik.Windows.Controls.GridViewRowValidatingEventArgs;
r.IsValid = false;
r.ValidationResults.Clear();


foreach (.Infrastructure.ValidationError error in errors)
{
              r.ValidationResults.Add(new GridViewCellValidationResult() { ErrorMessage = error.ErrorMessage, PropertyName = error.PropertyName });
}

return;
}


//////////////////////
//Cell validating event
////////////////////// 
var c = param as Telerik.Windows.Controls.GridViewCellValidatingEventArgs;
c.Cell.Errors // errors does  not get cleared, but gets appended to this list !!!!!!!!!!

HI.

In the following example, I use a RadComboBox with TextSearchMode="Startswith".

<telerik:RadComboBox  
                        ItemsSource="{Binding RelativeSource={RelativeSource FindAncestor,  AncestorType={x:Type UserControl}},Path=DataContext.Sagsbehandler}" 
                        SelectedValue="{Binding SagsbehandlerId, ValidatesOnDataErrors=True, UpdateSourceTrigger=LostFocus}" 
                        SelectedValuePath="SagsbehandlerId"
                        DisplayMemberPath="Navn"                    
                        IsEditable="True"
                        TextSearchMode="StartsWith"
                        >
When typing the first letters of an item in the itemssource, the first match is selected/autocompleted in the editable area.

However: If I change TextSearchMode to "Contains", there is no autocompletion as I initially would have expected. Only the typed text is shown and the user has no clue if the typed text has any match in the itemssource.
How can I change this behaviour? That is, how can I enable autocompletion when using a contains search.

I am using a horizontally sliced TreeMap. Is it possible to control the VERTICAL distance (Y-Direction)?  I understand the horizontal distance is determined by the values (X-Direction).  

Ideally, the space would be equidistant vertically with all 3 groups having the same vertical distance.  Similar to a Grid with 3 RowDefinitions where Height="*"

Current XAML:

StaticResource IcicleStyle:



A screenshot of the current layout is attached.  If you look at the last section labelled "S", Ideally,  (S.Height === %G1.Height).  Even if I remove the third level of data {1,2,3,4}, the result is the same.

Any help is appreciated.

Thanks,
Jacob

HI,

I'm trying to use your Diagram control which is very cool by the way. But i'm struggling to understand how the structure works inside. Can I ask if you can compose one fully working example of OrgChart diagram like in demo. So I can study it.

Thanks in advance

Hi Team,
I have the following columns in a grid in my MVVM project.
checkbox_Column Textbox1_column Textbox2_Column.

My requirement is - when i check the checkbox, Textbox2_Column should get disabled and when i un-check the checkbox Textbox1_column should get disabled.

Can you please tell me how to do this.

Thanks,

Hi,
I am facing an Issue with binding in RadGrid. Here is my XAML

 <telerik:GridViewDataColumn Width="Auto" DataMemberBinding="{Binding IsTermChange}"  Header="Change Term" x:Name="TermChange">
                    <telerik:GridViewDataColumn.CellTemplate>
                        <DataTemplate>
                            <CheckBox IsChecked="{Binding IsTermChanged, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"/>
                        </DataTemplate>
                    </telerik:GridViewDataColumn.CellTemplate>
                </telerik:GridViewDataColumn>
                <telerik:GridViewDataColumn Width="Auto" DataMemberBinding="{Binding IsActive}"  Header="Change Mileage">
                    <telerik:GridViewDataColumn.CellTemplate>
                        <DataTemplate>
                            <CheckBox IsChecked="{Binding IsActive, Mode=TwoWay}"/>
                        </DataTemplate>
                    </telerik:GridViewDataColumn.CellTemplate>
                </telerik:GridViewDataColumn>
                <telerik:GridViewDataColumn Width="Auto" DataMemberBinding="{Binding IsActive}"  Header="Add Option">
                    <telerik:GridViewDataColumn.CellTemplate>
                        <DataTemplate>
                            <Grid>
                                <CheckBox Name="optionCheckBox"/>
                            </Grid>
                        </DataTemplate>
                    </telerik:GridViewDataColumn.CellTemplate>
                </telerik:GridViewDataColumn>
                <telerik:GridViewDataColumn Width="Auto" DataMemberBinding="{Binding IsActive}"  Header="Add Maint.">
                    <telerik:GridViewDataColumn.CellTemplate>
                        <DataTemplate>
                            <CheckBox IsChecked="{Binding IsActive, Mode=TwoWay}"/>
                        </DataTemplate>
                    </telerik:GridViewDataColumn.CellTemplate>
                </telerik:GridViewDataColumn>
                <telerik:GridViewDataColumn Width="Auto" DataMemberBinding="{Binding IsActive}"  Header="Remove Maint.">
                    <telerik:GridViewDataColumn.CellTemplate>
                        <DataTemplate>
                            <CheckBox IsChecked="{Binding IsActive, Mode=TwoWay}"/>
                        </DataTemplate>
                    </telerik:GridViewDataColumn.CellTemplate>
                </telerik:GridViewDataColumn>
                <telerik:GridViewColumn Header="Proposed Term" >
                    <telerik:GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <telerik:RadComboBox Width="80" HorizontalAlignment="Left" Margin="3,1,0,0" Text="{Binding Path=TermRequested, Mode=TwoWay,   UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True, NotifyOnValidationError=True}" IsEditable="True" ItemsSource="{Binding AvailableTermsList}" StaysOpenOnEdit="True" />
                        </DataTemplate>
                    </telerik:GridViewColumn.CellTemplate>
                </telerik:GridViewColumn>

I want to bind the IsEnabled property of radcombobox (bold one) only when IsChecked property is true for checkbox(bold one). I am not abble to achieve that. Please help it is urgent.

I am fairly new to WPF and have not mastered MVVm so I'm building my treeview manually like so:


The image file for the state does not load despite it being in the relative path in the project.  Does it ned to be loaded in as a resource somehow rather than just specifying the relative path? 

Also what is the format of the path when bringing a TreeViewItem into view (auto scrolling) in a non-bound scenario like this, when there is more than one level involved?  I thought I saw somewhere to separate the levels items with a " | " but it doesn't seem to work.

as in:


Thanks,
Jonathan

Hello Telerik Team,
i have a user control Project. I declared the theme files in MergedDictionaries to style the ganttcontrol.
The structure is designed as Mvvm. When i start the Application i get a Null reference exception.
How can i fix this issue? Thank you and regards Robert ...
 

Hi,

I wonder if Telerik WPF controls has a textbox that supports autocomplete as the user types in, similar to the Google search textbox (not a combo box). I have a repository of around 4000 items that I want bind as the data source for this autocomplete, and display a matching result as the user types (just top 7 or 8 of course). With Each new character typed, the suggested list get updated accordingly from those 4000 items.

Any suggestion how to achieve this behavior?

Regards

Hello,

We want to create an AutoComplete (or RadComboBox IsEditable=true) binded to a collection of 60.000 items so we would like that the control create the query in database (with like % for exemple) as to the user type the keyword and view the result in the choice popup of the combo

How to do this ?
Thx