Questions on UI for WPF Forum

2 answers

194 views

Updating a point of a polygon already on the map

I'm trying to update a polygon-point location using a Map.MouseMove handler but the shape on the map is displayed incorrectly, as if the polygon bounds are not updated. If I position the updated point within the bounds of the existing polygon, all the points are rendered correctly. Changing the zoom level also corrects the problem, until the mouse is moved enough again.

I've attached screenshots:

RadMapPolygonA.png shows the initial, correct state, with the red dot showing the MouseMove position which is supposed to update the location of the point beneath it.

RadMapPolygonB.png shows what happens if you update the location property of the polygon point outside the bounds of the existing polygon.

RadMapPolygonC.png shows the correctly rendered polygon after I changed the zoom level and reset it.

void RadMapMouseMove(object sender, MouseEventArgs e)

{

if (!vm.DrawingShape || vm.CurrentShape == null) return;

if (vm.CurrentShape.LocationWrappers.Count < 2) return;

var locationWrapper = vm.CurrentShape.LocationWrappers[vm.CurrentShape.LocationWrappers.Count - 1];

var location = Location.GetCoordinates(RadMap, e.GetPosition(RadMap));

locationWrapper.Location = location; // updates databound LocationCollection

}

Map

answered on 14 Nov 2011

4 answers

353 views

TreeListView Expander Style Plus Minus

Hello,

I want to show Plus/Minus (+/-) in Expander button style in my TreeListView node.
I want the TreeListView default Office Blue style to remain as it is, just need to change the Expander style only.

I have tried many but unable to accomplish. Please suggest me a solution asap. Please find the screenshot

TreeListView

answered on 14 Nov 2011

1 answer

83 views

Extra Chart area in Chart.

Here is a Chart I'm working on:

<Telerik:RadChart Height="750" x:Name="WeightsChart" Width="1400">

<Telerik:RadChart.DefaultView>

<Telerik:ChartDefaultView>

<Telerik:ChartDefaultView.ChartTitle>

<Telerik:ChartTitle Content="Catia Part and Assembly Weights" HorizontalAlignment="Center"/>

</Telerik:ChartDefaultView.ChartTitle>

<Telerik:ChartDefaultView.ChartLegend>

<Telerik:ChartLegend Visibility="Collapsed"/>

</Telerik:ChartDefaultView.ChartLegend>

<Telerik:ChartDefaultView.ChartArea>

<Telerik:ChartArea>

<Telerik:ChartArea.AxisX>

<Telerik:AxisX LabelRotationAngle="90"/>

</Telerik:ChartArea.AxisX>

</Telerik:ChartArea>

</Telerik:ChartDefaultView.ChartArea>

</Telerik:ChartDefaultView>

</Telerik:RadChart.DefaultView>

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="1*"/>

</Grid.RowDefinitions>

<Telerik:ChartArea x:Name="BarChart" NoDataString="No Bar Series Data"/>

<Telerik:ChartArea x:Name="LineChart" Grid.Row="1" NoDataString="No Line Series Data"/>

</Grid>

<Telerik:RadChart.HierarchicalViewDescriptors>

<Telerik:ChartHierarchicalViewDescriptor>

<Telerik:ChartHierarchicalViewDescriptor.SeriesMappings>

<Telerik:SeriesMapping LegendLabel="Weights" ChartAreaName="BarChart">

<Telerik:SeriesMapping.SeriesDefinition>

<Telerik:BarSeriesDefinition LegendDisplayMode="None"

ItemStyle="{StaticResource BarStyle}"

SeriesItemLabelStyle="{StaticResource LabelStyle}">

</Telerik:BarSeriesDefinition>

</Telerik:SeriesMapping.SeriesDefinition>

<Telerik:SeriesMapping.ItemMappings>

<Telerik:ItemMapping FieldName="Weight" DataPointMember="YValue"/>

<Telerik:ItemMapping FieldName="InstanceNumber" DataPointMember="XCategory"/>

</Telerik:SeriesMapping.ItemMappings>

</Telerik:SeriesMapping>

</Telerik:ChartHierarchicalViewDescriptor.SeriesMappings>

</Telerik:ChartHierarchicalViewDescriptor>

<Telerik:ChartHierarchicalViewDescriptor>

<Telerik:ChartHierarchicalViewDescriptor.Relation>

<Telerik:PropertyRelation ParentPropertyName="Children"/>

</Telerik:ChartHierarchicalViewDescriptor.Relation>

<Telerik:ChartHierarchicalViewDescriptor.SeriesMappings>

<Telerik:SeriesMapping LegendLabel="Weights" ChartAreaName="BarChart">

<Telerik:SeriesMapping.SeriesDefinition>

<Telerik:BarSeriesDefinition LegendDisplayMode="None"

ItemStyle="{StaticResource BarStyle}"

SeriesItemLabelStyle="{StaticResource LabelStyle}"/>

</Telerik:SeriesMapping.SeriesDefinition>

<Telerik:SeriesMapping.ItemMappings>

<Telerik:ItemMapping FieldName="Weight" DataPointMember="YValue"/>

<Telerik:ItemMapping FieldName="InstanceNumber" DataPointMember="XCategory"/>

</Telerik:SeriesMapping.ItemMappings>

</Telerik:SeriesMapping>

</Telerik:ChartHierarchicalViewDescriptor.SeriesMappings>

</Telerik:ChartHierarchicalViewDescriptor>

<Telerik:ChartHierarchicalViewDescriptor>

<Telerik:ChartHierarchicalViewDescriptor.Relation>

<Telerik:PropertyRelation ParentPropertyName="Children"/>

</Telerik:ChartHierarchicalViewDescriptor.Relation>

<Telerik:ChartHierarchicalViewDescriptor.SeriesMappings>

<Telerik:SeriesMapping LegendLabel="Weights" ChartArea="BarChart">

<Telerik:SeriesMapping.SeriesDefinition>

<Telerik:BarSeriesDefinition LegendDisplayMode="None" />

</Telerik:SeriesMapping.SeriesDefinition>

<Telerik:SeriesMapping.ItemMappings>

<Telerik:ItemMapping FieldName="Weight" DataPointMember="YValue"/>

<Telerik:ItemMapping FieldName="InstanceNumber" DataPointMember="XCategory"/>

</Telerik:SeriesMapping.ItemMappings>

</Telerik:SeriesMapping>

</Telerik:ChartHierarchicalViewDescriptor.SeriesMappings>

</Telerik:ChartHierarchicalViewDescriptor>

</Telerik:RadChart.HierarchicalViewDescriptors>

</Telerik:RadChart>

As you can see, I'm getting a mystery series in the center of my grid. How do I get rid of it? I'm having a lot of trouble setting up these charts.

Chart

answered on 12 Nov 2011

3 answers

148 views

DataFormatString for Date

Hi,

I use "{}{0:M/dd/yyyy}" but it's not working. I'm doing this in the codes because we have to display columns dynamically. What's happening here?

GridView

answered on 11 Nov 2011

2 answers

133 views

Hierarchical Grid Views And Separate data sources

I am working with a C# application that is connecting to a web service in the code behind on a Click event of a button doing a search...say for customers and their orders. The data comes to the app. as XML but is Deserialize into a List<OfAClass>. The parent grid is utilizing one data source (Customers) and the child utilizes another(Orders). I have been looking at samples but do not get how to tie the two grids together. Is this done in the DataLoading event? In the examples the child grid does not seem to get an ItemSource. How do I tell the child grid where to get its data(Orders)? And How do I tie the two datasources together?

Any codes samples would be greatly appreciated.

Thanks ~ Doug

GridView

answered on 11 Nov 2011

5 answers

466 views

IsSynchronizedWithCurrentItem not supported by the GridView

Hi,
I am using the 2011 SP 1 release and it does not support the 'IsSynchronizedWithCurrentItem' property. The thread entitled 'Collections of Collections and row select ' from January 2010 states that it would be available in the 2010 Q1 release but this does not appear to have happened. It would be nice if you could reinvestigate this issue because if it was ever implemented then it now seems to be broken. Thanks,
Pete

GridView

answered on 11 Nov 2011

5 answers

152 views

Can you sort by an Aggregrate function?

We have a very large data set, which users can group by a few different columns depending on how they want to see the data. When grouped, there are 3 aggregrates: Count, Sum, and Average. Is there a way to allow the users to sort by these aggregates without pre-defining the groups?

I looked at a few samples I found on your forums for sorting by an aggregate, but they all sorted based on a pre-defined Group, and once you changed the Group, the sorting stopped working.

GridView

answered on 11 Nov 2011

2 answers

163 views

RadGridView loses focus upon column filtering

We are using version 2010.2.924.40 of the WPF RadGridView. On a grid, I have ONE editable column, and 6 readonly columns. Rows for this grid are created through code and user cannot enter rows. They can only edit the one column of each row. As a user edits the singe editable column and hits TAB, the focus shifts to the next row, into the editable column...as expected.

However, if the user FILTERS one or more of the readonly columns, then edits the row/editable column and hits TAB, the focus does not shift to the next row. I can't determine where focus shifts to.

Do you have a fix or solution for this?

Michael

GridView

answered on 11 Nov 2011

5 answers

120 views

How to AllowDragReorder when ItemsSource is set to binding?

I'm trying to enable tabs reordering, but it works only when items are set in xaml.

This works:

<t:RadTabControl AllowDragReorder="True" x:Name="radTabControl1">

<t:RadTabItem Header="item1" />

<t:RadTabItem Header="item2" />

<t:RadTabItem Header="item3" />

</t:RadTabControl>

And this don't

<t:RadTabControl AllowDragReorder="True" x:Name="radTabControl1" ItemsSource="{Binding list}" />

How to make this work with binding?

TabControl

answered on 11 Nov 2011

1 answer

289 views

Setting the Data Form current item

I have a Data Form and a Grid. What I am doing is that every time we move forward or backwards in the Data Form, the Grid gets updated, sometimes by manually setting the current item in the Data Form and consequently updating the Grid based on an ID key.

Example #1:

Adding a new record to the Data Form. I use the Edit Ended event to Save the changes via EF. This works fine. After saving I am setting the Data Form current item to the newly created record. In my case, this means updating the Data Form (re-loading all values from the database), doing a look up and updating the Data Form current item and finally updating the Grid.

This is not working for me. Re-loading the Data Form works but setting the Data Form current item is not working

Example #2:

After I enter a new Data Form item, EF returns back an error on dups. (based on PK), which is perfect. Since the item exists, I want to position the Data Form on that record by manually setting the current item, but this is not working either.

When I say that it does not work, I mean that after I do the following on the EditEnded event:

this.dataForm.CurrentItem = [Do a look up based on PK and return object]

The Current Item Changed event fires (which is expected) and there I update the Grid, but at this point is where dataForm.CurrentItem is null preventing me from updating the Grid

Ideas/comments are appreciated.

Thanks, M

DataForm

answered on 11 Nov 2011