Questions on UI for WPF Forum

1 answer

84 views

GridView - Possible to have different control type for each cell?

I am working on a project where I need a different control type (date picker, combo box, textbox) for each cell on the same column.

Example:

Attributes	Value
Name	Textbox
DOB	Date Picker
Origin	Combo Box (List of Countries)

If it is possible, any sample code would be appreciated.

Thanks.

GridView

answered on 22 Dec 2009

3 answers

130 views

System.ArgumentException

When I do this: RadGridView.ItemsSource = null;
A first chance exception of type 'System.ArgumentException' occurred.What can I do?
Message:
    "Invalid property or field - 'tip' for type: Object"
StackTrace:
   at Telerik.Windows.Data.Expressions.MemberAccessTokenExtensions.CreateMemberAccessExpression(IMemberAccessToken token, Expression instance)
   at Telerik.Windows.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName)
   at Telerik.Windows.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName, Boolean liftMemberAccessToNull)
   at Telerik.Windows.Data.Expressions.PropertyAccessExpressionBuilder.CreateMemberAccessExpression()
   at Telerik.Windows.Data.Expressions.MemberAccessExpressionBuilderBase.CreateLambdaExpression()
   at Telerik.Windows.Data.SortDescriptorCollectionExpressionBuilder.Sort()
   at Telerik.Windows.Data.SortDescriptorCollection.Sort(IQueryable queryable)
   at Telerik.Windows.Data.QueryableExtensions.Sort(IQueryable source, SortDescriptorCollection sortDescriptors)
   at Telerik.Windows.Data.QueryableCollectionView.CreateView()
   at Telerik.Windows.Data.QueryableCollectionView.get_QueryableView()
   at Telerik.Windows.Data.QueryableCollectionView.CreateInternalList()
   at Telerik.Windows.Data.QueryableCollectionView.EnsureInternalList()

GridView

answered on 22 Dec 2009

1 answer

449 views

ContextMenu on RadGridView

Hello,

I need a context menu on my radgrid view, but i need it to operate on the current data context of the cell (I.e. each operation on the context menu will be on the current context of the cell (or row).

I used this code:

<telerik:RadGridView.Resources>

</ContextMenu>

</telerik:RadGridView.Resources>

But i didn't know how to implement Update_Click to operate on the appropriate DataContext

Thanks,

Ofer

GridView

answered on 22 Dec 2009

4 answers

381 views

Infinity is not a valid value for the property Width

Hi Guys,

When I drag the nodes in the treeview, it displays "Infinity is not a valid value for the property Width". What caused this error?

Thanks,

TreeView

answered on 21 Dec 2009

3 answers

145 views

Simple Doc layout blocked by DocumentHost

I am trying to achieve a very simple 2 pane docking layout. I want both panes to fill the space available with a splitter between them. If I hide one pane I want the other to fill the remaining space. Here is my markup:

    
                <Grid> 
        
                    <telerik:RadDocking Name="radDocking1" > 
        
                        <telerik:RadSplitContainer Name="LeftContainer" InitialPosition="DockedLeft" > 
        
                            <telerik:RadPaneGroup> 
        
                                <telerik:RadPane Header="Task List"> 
        
                                </telerik:RadPane> 
        
                            </telerik:RadPaneGroup> 
        
                        </telerik:RadSplitContainer> 
        
                        <telerik:RadSplitContainer Name="RightContainer" InitialPosition="DockedRight"> 
        
                            <telerik:RadPaneGroup> 
        
                                <telerik:RadPane Header="Map"> 
        
                                </telerik:RadPane> 
        
                            </telerik:RadPaneGroup> 
        
                        </telerik:RadSplitContainer> 
        
                    </telerik:RadDocking> 
        
                </Grid>

What seems to be blocking this is the DocumentHost. Even when I remove the document host by following the posted instructions - using blend to grab the style sheet and setting visibility to collapsed I still can't get my 2 panes to fill the space.

Any ideas anyone?

Cheers

Steve

Docking

answered on 21 Dec 2009

2 answers

171 views

[Solved] ScrollBar DoubleClick

Hi, I have a problem, when I select a row of my RadGriView Q3 and this hase a ScrollBar, If I do Double Click in the arrow of the scrollbar, this executes the event "MousDoubleClik" of my RadGrid, I need to block this event in the scroll bar, help me

Regards!!

GridView

answered on 21 Dec 2009

18 answers

1.1K+ views

[Solved] Multiple child tables in hierachical radgridview

I managed to make RadGridView show multiple related tables (LINQ to SQL) by approach used in FirstLook sample (create GridViewTableDefinition and TableRelation). If I add two table definitions it works OK (besides showing empty table if no related record exists).

I'd like to know if there exists a way, to show each of related tables in separate tab of RadTabControl. If I define HierarchyChildTemplate/DataTemplate with RadTabControl where each tab containins GridViewDataControl, I get two tab-controls instead of one, first one showing first relation on all tabs and second tab-control showing second related table on all tabs. Is there a Way to show child-table per tab-item (or expander or something alike)?

Thanks.

Branko

GridView

answered on 21 Dec 2009

1 answer

107 views

Drag drop between two tree views not possible?

Hi,

I'm new in using your nice controls. Great job guys!

Now to my problem:
My application needs the functionality to drag & drop tree nodes between two treeviews which are placed in separate grid columns.
Drag and Drop does not work. If I try to drag an item, the mouse cursor does not change and I have no idea why.

The definition of the first treeview is:
<telerik:RadTreeView IsOptionElementsEnabled="True"
                                   ItemsOptionListType="CheckList"
                                   IsLineEnabled="True"
                                   IsTriStateMode="True"
                                   LoadOnDemand="oTreeViewSource_LoadOnDemand"
                                   ItemPrepared="oTreeViewSource_ItemPrepared"
                                   IsDragDropEnabled="True"
                                   IsDragTooltipEnabled="False"
                                   AllowDrop="True"
                                   Margin="6"
                                   SelectionMode="Multiple"
                                   Name="oTreeViewSource" />

and the definition of the second is:
<telerik:RadTreeView IsDragDropEnabled="True"
   AllowDrop="True"
   Name="oTreeViewTarget"
   Margin="6"></telerik:RadTreeView>

The items in the first treeview were added like this:
            RadTreeViewItem oTreeViewTargetItem = new RadTreeViewItem();
           oTreeViewTargetItem.Header = "New item";
            nIndex = oTreeViewSource.Items.Add(oTreeViewTargetItem);

Does anyone has an idea what is wrong?

Thanks
Dieter

TreeView

answered on 21 Dec 2009

1 answer

136 views

Changing items in ItemsSource

I want to change the items in my TileView's items source at runtime. The item's are being shown correctly after I've populated the Itemssource for the first time. When changing the source the items move over each other.

Example code:

    
            public Window1()  
        
                  {  
        
                     InitializeComponent();  
        
                     RadTileView1.ItemsSource = new ObservableCollection<Test> {   
        
                        new Test() { Description = "11" },   
        
                        new Test() { Description = "22" } ,  
        
                        new Test() { Description = "33" } ,  
        
                        new Test() { Description = "44" } ,  
        
                        new Test() { Description = "55" } ,  
        
                        new Test() { Description = "66" }   
        
                     };  
        
                  }  
        
                 private void button1_Click(object sender, RoutedEventArgs e)  
        
                  {  
        
                     ObservableCollection<Test> col = (ObservableCollection<Test>)RadTileView1.ItemsSource;  
        
                     col.Clear();  
        
                     col.Add(new Test() { Description = "aa" });  
        
                     col.Add(new Test() { Description = "bb" });  
        
                     col.Add(new Test() { Description = "cc" });  
        
                     col.Add(new Test() { Description = "dd" });  
        
            }

Regards,
Michael

TileView

answered on 21 Dec 2009

13 answers

258 views

[Solved] Where to put the XAML for the window?

I've created a dialog box in XAML using a RadWindow, and I've just put the XAML into my main page, so it shows up in the design view in Visual Studio, hiding everything underneath it. Do you have any tips for a better way to do this?

Steve

Window

answered on 21 Dec 2009