Questions on UI for WPF Forum

2 answers

93 views

Hi Telerik,

I have implemented something similar to the Tree to Grid Drag that you have posted as an example on the RadControls for WPF page in my own project. I need to be able to resize the Column Widths on the RadGridView, but I can no longer do that once I begin to write my own Drag And Drop handlers for the RadGridView. Your example does the same thing that mine does. It doesn't allow you to change the Column Widths or re-order the columns in the middle portion labeled "Order".

Please let me know if you have found a solution to this problem.

Thanks,
Scott

DragAndDrop

answered on 08 Jul 2011

1 answer

186 views

Syncing DBContext and QueryableCollectionView

Hi,
i have a - maybe - stupid question. My Application uses Entity Framework 4.1 with DBContext. In the MainWindow is a RadGridView bound to a QueryableCollectionView (Customers) to display Data.

<telerik:RadGridView x:Name="uxCustomerGrid" ItemsSource="{Binding Customers,BindsDirectlyToSource=True}" IsReadOnly="True" EnableColumnVirtualization="True" EnableRowVirtualization="true" SelectionMode="Extended" RowIndicatorVisibility="Collapsed" AutoGenerateColumns="False" CanUserDeleteRows="False" CanUserInsertRows="False" GridLinesVisibility="None" IsFilteringAllowed="False" ShowGroupPanel="False" RowStyle="{DynamicResource CustomerRowStyle}">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Kundennummer}" Header="Nummer"/>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Kundenname}" Header="Name" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Ort.Bezeichnung}" Header="Ort" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Ort.PLZ}" Header="PLZ" IsVisible="False" />

<telerik:GridViewDataColumn DataMemberBinding="{Binding Einwohneranzahl}" Header="Einwohner" IsVisible="False" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

private QueryableCollectionView _customers;

public QueryableCollectionView Customers

{

get { return _customers; }

set

{

if (value != _customers)

{

_customers = value;

OnPropertyChanged("Customers");

}

....

this._context = new MiexUnitOfWork();

_context.Kunde.ToList();

this.Customers = new QueryableCollectionView(_context.Kunde.Local);

The user changes a single row of the grid via a ModalWindow. The Window has it's own dbcontext. After the user has closed the ModalWindow (and the changes are saved to the database) i wan't to refresh the grid in the parent's window.
I tried the following:

_context.Entry(_context.Kunde.Find(Key)).Reload()

This code forces the dbcontext to update the changed entry. But the changes are not reflected in the grid. I tried to call the Refresh() method of the QueryableCollectionView, but the grid still show's the old values.

How can i force the grid to show the changes made in the dbcontext?

GridView

answered on 08 Jul 2011

4 answers

351 views

RadRibbonDropDownButton vs RadDropDownButton dropdowncontent

Hello,

I have in ribbon a RadRibbonDropDownButton which contains a usercontrol with tabcontrol and RadColorSelector. (to program predefined and personnalized color control).
Some where else i use a RadDropdownButton which contains the same color control.

I see some difference between the both :
- in RadRibbonDropDownButton, when i choose a color on the colorselector, it close the dropdowncontent, not for RadDropdownButton.
- in RadRibbonDropDownButton, when i click on tabitem, it will close the dropdowncontent until i add this code . For RadDropdownButton, even with the same code it always close the dropdowncontent.

<TabControl x:Name="tabcontrol" MouseDown="MousedownHandled" SelectionChanged="test">

private void MousedownHandled(object sender, System.Windows.Input.MouseButtonEventArgs e)

{

if (tabcontrol.SelectedIndex == 1) e.Handled = true;

}

private void test(object sender, SelectionChangedEventArgs e)

{

if (e.OriginalSource == tabcontrol) e.Handled = true;

}

the function "test" is called elsewhere i click on the control (if i click on a color in ColorSelector also ?!?)

Well, could you explain me

the difference of the both components
and also when should close the dropdowncontent, and how prevent from closing ?

Thanks
Aurore
I use 2011.1.419.35 dll

Buttons

answered on 08 Jul 2011

6 answers

161 views

Header/Footer

I think it’s very courageous of you to start with a “msWord-alike” RichTextBox.
You came with a very fine “word” example in the Demo with a lot of functionality. Great!
But of course, starting with this you can expect more questions and more wishes. We are never satisfied! 8-)
Questions like this:
- What about merging?
- What about Header and Footer?

RichTextBox

answered on 08 Jul 2011

3 answers

153 views

Group by date and stack by ItemType

My data items look like this:

Public Class ExportData
    Public Property MyDate As Date
    Public Property ItemType As String
 End Class

Now I'd like to get a stacked bar chart that groups the items by month and stacks the count of the different item types. For each month I would have a stacked bar that says for example "Jan 11 = 3 items of type A, 4 items of type B, 5 items of type C".
Is this possible?

I tried to with the following XAML code to configure the chart:

<telerik:RadChart.SeriesMappings>

<telerik:SeriesMapping x:Name="DataMapping" LegendLabel="Sales">

<telerik:SeriesMapping.SeriesDefinition>

<telerik:StackedBarSeriesDefinition ShowItemLabels="True" ShowItemToolTips="True" ItemToolTipFormat="#Y">

<telerik:StackedBarSeriesDefinition.InteractivitySettings>

<telerik:InteractivitySettings HoverScope="Series" SelectionScope="None" />

</telerik:StackedBarSeriesDefinition.InteractivitySettings>

</telerik:StackedBarSeriesDefinition>

</telerik:SeriesMapping.SeriesDefinition>

<telerik:SeriesMapping.ItemMappings>

<telerik:ItemMapping FieldName="ItemType" DataPointMember="YValue" AggregateFunction="Count" />

<telerik:ItemMapping FieldName="MyDate" DataPointMember="XCategory" />

</telerik:SeriesMapping.ItemMappings>

<telerik:SeriesMapping.GroupingSettings>

<telerik:GroupingSettings StackGroupFieldName="ItemType" ShouldFlattenSeries="True">

<telerik:GroupingSettings.GroupDescriptors>

<telerik:ChartYearGroupDescriptor />

<telerik:ChartMonthGroupDescriptor />

<telerik:ChartGroupDescriptor Member="ItemType" />

</telerik:GroupingSettings.GroupDescriptors>

</telerik:GroupingSettings>

</telerik:SeriesMapping.GroupingSettings>

</telerik:SeriesMapping>

</telerik:RadChart.SeriesMappings>

Thanks for any ideas...

Chart

answered on 08 Jul 2011

1 answer

94 views

Weekview - Appointment Width

Hi !

I have the ScheduleView with a WeekViewDefinition.

My Problem is, the Appointment with is about 98% of the width of a slot in the week.

So if i have 2 appointments e.g. one one monday and one one tuesday at the same time, the space between
the two appointments is very small and it will be hard to select the slot on eg, monday on the same time.

See attached screenshot.

Is there any chance to recude the width of the appointments to eg.: just 70% of the width of a slot for a day ?

ScheduleView

answered on 08 Jul 2011

5 answers

244 views

Add, Edit, Delete with Entity Frame work

Hi

I would be great if someone can post an sample project, of Add, Edit, Delete Dataform,using the Entity Frame work, I have all sort of trouble getting it to work

cheers

Jason

DataForm

answered on 08 Jul 2011

3 answers

458 views

Highlight/Style a Cell programmatically?

Hello,

I am using WPF RadGridView in a common user control, and this control supports many different types of data. The grid is therefore built dynamically in code, and there is no XAML except to define the grid itself. The data is bound using the ItemsSource property to a QueryableCollectionView. Our client has requested that we provide a search on the visible grid elements (i.e. current page only), and they do NOT want to filter based on the search, only highlight the cells where the text was found.

I have implemented the code necessary to perform the search. However, at the point where I find a match, I need to highlight the cell containing the match. I know the row and column at this point, but I am unclear how to go about changing the cell style with only this information. Do you have any suggestions?

Here is the event code to perform the search after the search text box (txtSearch) is filled:

private void SearchTextBox_Search(object sender, RoutedEventArgs e)

{

int foundCellCount = 0;

foreach (object o in ((QueryableCollectionView)theGrid.ItemsSource))

{

if (o != null)

{

Type rowType = o.GetType();

PropertyInfo[] props = rowType.GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static);

foreach (PropertyInfo pi in props)

{

if (IsVisibleColumn(pi.Name))

{

object oCellVal = pi.GetValue(o, null);

if ((oCellVal != null) &&

((oCellVal.GetType() == typeof(int)) ||

(oCellVal.GetType() == typeof(string)) ||

(oCellVal.GetType() == typeof(long))))

{

string cellVal = oCellVal.ToString();

if (cellVal.Contains(txtSearch.Text))

{

// Match found

foundCellCount++;

// NEED TO HIGHLIGHT THE CONTAINING CELL HERE!!!

}

if (foundCellCount > 0)

{

MessageBox.Show(string.Format("Match found in {0} cells", foundCellCount));

}

else

{

MessageBox.Show("Not Found!");

}

GridView

answered on 08 Jul 2011

0 answers

103 views

slow loading

We are using RadControls for WPF Q2 2010.

In our project we need to update the RadGridView which contains about 100 or more strokes several times in minute. We set the property “DataLoadMode” of the RadGridView to Asynchronous but updating of the GridView hinder the program to work fast and correctly.

Can you tell us the way to resolve this problem?

GridView

asked on 08 Jul 2011

1 answer

109 views

Custom Template

Hello,
I creted custom template for input control. But it doesn't work properly

<Style TargetType="telerik:RadMaskedNumericInput">

<Setter Property="Margin" Value="2 2 2 2"/>

<Setter Property="IsClearButtonVisible" Value="False"/>

<Setter Property="TextMode" Value="PlainText"/>

<Setter Property="KeyboardNavigation.TabNavigation" Value="Local"/>

<Setter Property="Validation.ErrorTemplate">

<Setter.Value>

<ControlTemplate>

</ControlTemplate>

</Setter.Value>

</Setter>

<Style.Triggers>

<Trigger Property="Validation.HasError" Value="true">

<Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/>

<Setter Property="BorderBrush" Value="Red"/>

</Trigger>

</Style.Triggers>

</Style>

First of all ClearButton is still visible.

BorderBrush changed to red after validation error, but only after I focus and unfocus control.
ValidationError don't appear in ToolTip.
I use newest compilation.

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 07 Jul 2011