Questions on UI for WPF Forum

5 answers

398 views

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

152 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

132 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

195 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

3 answers

131 views

Bound Column Headers

I need to use the datacontext of my gridview (or window) to bind my column headers. I tried both the gridview and window relativesource and got the same results. My initial view of the grid looks great - any of the columns that are displayed on the initial view have the correct headers. However, if you scroll to the right, any of the columns that weren't originally displayed don't have a header (the datacontext has the correct labels - I've checked). I made the window wider which meant that more column headers display but still not all. Is there some trick to getting all the column headers to bind?

I have attached pictures of the left and right side of the grid.

Here is an example of one of the data columns. Note: The values are displayed correct.

<telerik:GridViewDataColumn ColumnGroupName="ColumnsTrans" DataMemberBinding="{Binding Value1}" DataFormatString="{}{0:f2}" IsFilterable="False" IsReadOnly="True" Width="70" FooterTextAlignment="Right" >

<telerik:GridViewDataColumn.Header>

<TextBlock TextWrapping="Wrap" TextAlignment="Center">

<TextBlock.Text>

<Binding RelativeSource="{RelativeSource FindAncestor, AncestorType={x:Type Window}}" Path="DataContext.Label1" />

</TextBlock.Text>

</TextBlock>

</telerik:GridViewDataColumn.Header>

<telerik:GridViewDataColumn.AggregateFunctions>

<telerik:SumFunction Caption="" ResultFormatString="{}{0:N2}" ></telerik:SumFunction>

</telerik:GridViewDataColumn.AggregateFunctions>

</telerik:GridViewDataColumn>

GridView

answered on 05 Aug 2013

5 answers

349 views

ObjectContext vs DbContext

We're really excited about this control as it will really push us forward in a lot of heavy scenarios where "normal" programming falls apart. I have to echo a previous post that documentation should be a priority. I think people will simply skip over this if documentation isn't present.

The thing I'm fighting is this. We have in our N-Tier architecture a DbContext from a CodeFirst EF model and not a straight ObjectContext. The fluent api exposed by the DbContext is something we've been using for nearly 6 months now. I'm getting the underlying ObjectContext from the DbContext using the code below, but I am getting a Query Object Not Found error no matter which table I attempt to tie to. My guess is that, in reversing a DbContext back to an ObjectContext, I'm losing a lot of my definitions.

1. Do you support DbContexts?
2. If not (which I suspect is the answer), how could I use this control with a DbContext?

Thanks!
Doug

((IObjectContextAdapter) GearboxEntities).ObjectContext;

EntityFrameworkDataSource

answered on 05 Aug 2013

1 answer

52 views

Scroll performance problem with large documents viewing

Hello Every one

i am already buy the product WPF control Package

and i have a big problem with Rich text box Scroll performance problem with large documents viewing

is there is any solution for this issue.

thanks

RichTextBox

answered on 05 Aug 2013

3 answers

299 views

RadChartView with TimeSpan values?

I currently have a RadChartView control that is bound to some objects whose name is on the X-Axis (Horizontal) and total-time as a TimeSpan on the Y-Axis (Vertical). I would like the vertical axis to show labels such as 00:16:29.6 for sixteen minutes, twenty-nine and six-tenths seconds. I also want the vertical axis to automatically scale as it does with numerical values.

I have tried using the DateTimeContinuousAxis as the vertical axis which was bound to a DateTime with the hour, minutes, seconds, and milliseconds populated but the chart rendered the objects with a zero value. I have also tried just binding a CategoricalAxis to the TimeSpan property but that again renders all of the items with a zero value.

Does anybody know how to do this by overriding some classes or if there's any plans to include native TimeSpan representations in the RadChartView?

ChartView

answered on 02 Aug 2013

11 answers

943 views

How to add button column to telerik radgridview for WPF programatically

Hi,

i am using the namespace - Telerik.Windows.Controls(2009.3.1208.35)

How to add button column to telerik radgridview for WPF programatically
and how to fire the event.

Thank you,
Shashi

GridView

answered on 02 Aug 2013

5 answers

235 views

PivotGrid data loading status

Hello,

I am using Pivot Grid which has its DataProvider’s ItemSource as DataTable with large number of rows (around 500000).

Pivot grid takes some time to display this data and shows wait window which says “Loading…”.

Is there any way to find out status of DataProvider or PivotGrid control which indicates that data is being displayed in pivot grid control? I checked DataProvider Status and this is always “Ready” during this time. Actually pivot grid starts showing data only when DataProvider becomes Ready, but then if there is huge data to display, I want to do some operations during this time and also when data is fully shown to pivot grid.

Also I want to know if I can override default wait window and show my own wait window.

Kindly let me know if I can achieve this somehow.

Thanks,

Shiv Ram

PivotGrid

answered on 02 Aug 2013