Questions on UI for WPF Forum

2 answers

237 views

Hello, I have a simple question, here's what I want to do:

<telerik:RadCartesianChart Grid.Row="1" DataContext="{Binding Chart}" Grid.Column="0" Grid.ColumnSpan="2"></telerik:RadCartesianChart>

I want to be able to bind a RadCartesianChart to a RadCartesianChart object in my view model, do I have to use a different attribute than the one above. I can get it to work using a holder StackPanel then calling doing this:

chartHolder.Children.Add

But I'd rather just directly manipulate the Chart object and have it directly interact with the chart rather than removing the chart, regenerating it, then adding it back to the holder.

Is this possible?

ChartView

answered on 05 Aug 2013

5 answers

274 views

[Solved] How to check if any cell was modified in RowValidating event handler

Is it possible to check whether any cell was actually modified in RowValidating event handler.
Probably it's possible to do it comparing all cell values with GridViewRowValidatingEventArgs.OldValues, but may be there is a better way to find it?

Thanks
Alex

GridView

answered on 05 Aug 2013

1 answer

66 views

Print issues

Hi,

How do you

- Set Margins
- Handle print width when columns exceed physical page width (overflow pages?).

I am using "PrintExtensions". Are there any document(s) that explains the various properties.

Thanks
Rich

GridView

answered on 05 Aug 2013

1 answer

221 views

Change radgriview readonly property for specific row

Is there any way to change the IsReadOnly column property for just the InsertRow that is being created?
I am using the RadGridView control to enter data (e.g. line items in a shopping cart). The first column is the part number, a keyed entry in the underlying data schema. The column is defined as a readonly column because a user cannot change the part number in the grid once it has been committed to the database. But when the program executes the BeginInsert method to allow data entry for a new grid line item, the column for just the insert row must allow for data entry so that the part number can be entered. If I change the column to IsReadOnly = False during the AddingNewDataItem event that changes all grid rows; not just the new insert row that has not yet been committed.

GridView

answered on 05 Aug 2013

1 answer

157 views

[Solved] RadTileView hosting WindowsForms Control Issue

I host RadPanel(Your Winform Control Product) in RadTileView(Your WPF Control Product).

When I Scroll RadTileView fast , Item Header Title bar shows the residual image.
(When I host Image in RadTileView , All is Perfect.)

How can i remove this?

TileView

answered on 05 Aug 2013

3 answers

165 views

ObservableGraphSourceBase & Business Logic

Hello,

I'm performing EF and BL in the AddLink method of ObservableGraphSourceBase and things are working fine. As items/links are added/removed to/from the graph I can easily update my EF and persist.

I'm now adding in some business logic. For example, I have 3 node types, A, B, C, where my BL says that node type A can only be connected to node type B. I'm catching the AddLink and my BL is executed and when I see a link added from A to C this violates rules so I simply do no call base.AddLink(link).

This works, the internal structures are correct, however the UI is left with an orphaned connection. I'm assuming in this case I simply need to force the diagram to redraw and this orphan will be removed. Is that correct and how should I force the redraw?

Thanks,
Mike

Diagram

answered on 05 Aug 2013

5 answers

427 views

Default filters not working

I have a simple gird setup with a RadEntityFrameworkDataSource, RadDataPager, and RadGridView linked it works great with one exception, filters I set programmatically don't seem to trigger the underlying datasource to update.

Telerik.Windows.Controls.GridViewColumn timeColumn = this.RadGridView1.Columns["subject_timestamp"];

Telerik.Windows.Controls.GridView.IColumnFilterDescriptor timeFilter = timeColumn.ColumnFilterDescriptor;

timeFilter.SuspendNotifications();

timeFilter.FieldFilter.Filter1.Operator = Telerik.Windows.Data.FilterOperator.IsGreaterThan;

timeFilter.FieldFilter.Filter1.Value = DateTime.Now.AddYears(-1).ToShortDateString();

timeFilter.ResumeNotifications();

It puts the right info into the filters. If I run this in the constructor of the window after InitializeComponent(), it filters per page of the datagrid. If I run it attached to a button after load it simply inserts the parameters into the filter and doesn't evaluate. If I hit clear filter and insert it by hand it works perfectly. I am just not sure what to do cause it evaluate.

GridView

answered on 05 Aug 2013

1 answer

180 views

Pane is not hiding in AutoHide mode

Hi All
I have a pane which is dockable and after docking I have set it to autoHide and my application looks good. When I mouseover the hidden pane it pops up and I am expanding it. It is not closing if I move my mouse to other parts of the application. If I click somewhere in the application then it is hiding. Basically once I click outside the pane it is hiding. But I have some options in this pane . Whenever i select a option I am showing a confirmation dialog. Since this pane is not hiding, my dialog box is showing under this pane like the attached image.
Any suggestion on how to resolve this issue is much appreciated.

Thanks
Rakesh

Docking

answered on 05 Aug 2013

3 answers

152 views

Unable to insert new row with ShowInsertRow

Editing existing items in the grid works fine, but when I click on 'Click here to add new item', nothing happens.

In my view model I have an IQueryable:

public IQueryable<MyModel> Data

{

get { return this.dataService.GetData(); }

}

In the view, I have a RadGridView bound to the Data property:

<telerik:RadGridView Name="RadGridView1"

GroupRenderMode="Flat"

ShowInsertRow="True"

CanUserInsertRows="True"

CanUserFreezeColumns="False"

ItemsSource="{Binding Data}"

AutoGenerateColumns="False"

SelectedItem="SelectedItem"

ActionOnLostFocus="CommitEdit"

RowIndicatorVisibility="Collapsed"

ShowGroupPanel="False">

GridView

answered on 05 Aug 2013

3 answers

222 views

RowStyleSelector with TreeListViewRow Control Template to display different row types

I am trying to supply different TreeListViewRow templates using a RowStyleSelector to show certain types of rows (GetMoreData rows) with a template that does not follow the columns, but instead displays a button which you click to get more data (more children for that row).

The RowStyleSelector looks like :

<local:MyGridRowStyleSelector x:Key="RowStyleSelector">

<local:MyGridRowStyleSelector.MoreResultsRowStyle>

<Style TargetType="telerik:TreeListViewRow"

x:Name="MoreResults">

<Setter Property="telerik:TreeListViewRow.Template"

Value="{StaticResource MoreDataCustomRowTemplate}" />

</Style>

</local:MyGridRowStyleSelector.MoreResultsRowStyle>

<local:MyGridRowStyleSelector.NormalRowStyle>

<Style TargetType="telerik:TreeListViewRow"

x:Name="NormalResults">

</Style>

</local:MyGridRowStyleSelector.NormalRowStyle>

</local:MyGridRowStyleSelector>

The MoreResults TreeListViewRow Control Template is taken from Blend "Copy Template" on the TreeListViewRow but I have simply replaced the PART_DataCellsPresenter with :

<ItemsControl x:Name="PART_DataCellsPresenter"

Grid.ColumnSpan="2"

Grid.Column="1"

ItemsSource="{Binding Path=Functions}">

<ItemsControl.ItemTemplate>

<DataTemplate>

<Grid>

<Button Content="{Binding}" />

</Grid>

</DataTemplate>

</ItemsControl.ItemTemplate>

</ItemsControl>

I have this basic structure working and the MoreResults rows show Buttons as expected, but there are exceptions that show up in the output window : A first chance exception of type 'System.ArgumentException' occurred in Telerik.Windows.Data.dll

Would this be the suggested approach or is there a better way, that doesn't cause the exceptions ?

TreeListView

answered on 05 Aug 2013