Questions on UI for WPF Forum

0 answers

89 views

Open a Telerik:RadDocking in a New window on Rad:ButtonClick.

Hi Telerik Team,

I want to open a Telerik:Raddocking in a popup on Button Click. And button are there in toolbar. can you please provide a sample example to achieve that thing. i am attaching the image when i click on that button then the copy of the given raddocking will open in a new pop as well.

Regards

Raju

General Discussions

asked on 09 Aug 2017

4 answers

199 views

Show ColumnGroupHeader in ColumnHeader

Hi Telerik,

I have a RadGridView with some Columns and 2 ColumnGroups. Each ColumnGroup has 2 Columns.

I want to know if is it possible to "merge" 2 child Columns Header in each ColumnGroup and display the Header ColmunGroup parent. Finally, there is just 1 row, with Column Header and ColumnGroup Header inside.

I attached 2 screens to show you the actually result and the objective.

Thank you !

GridView

answered on 09 Aug 2017

1 answer

147 views

show result preview

hello！

I use ExpressionEditor in a project ,the main code is:

xaml:

cs:

private void ExpressionEditor_ExpressionChanged(object sender, RadRoutedEventArgs e)
{
try
{
dynamic dynamicExpression = ExpressionEditor.Expression;
dynamic compiledExpression = dynamicExpression.Compile();
object executionResult = compiledExpression();
aaa.Text = executionResult.ToString();
}
catch
{

}

}

the TextBox can show the result,but result preview of the RadExpressionEditor did not show the result,why? what should I do?

by the way,can we improve the RadExpressionEditor to make the programmer can add custorm function or constants like Pi?

ExpressionEditor

answered on 09 Aug 2017

1 answer

316 views

Bolding different parts of a string and writing it to PDF

Hi,

I'm new to telerik products and this is a really simple question that I'm trying to find right now. I'm currently generating a letter pdf using a method that returns a RadFixedDocument, which is made up of multiple Blocks placed in different positions of a single page using a FixedContentEditor. Right now I need to convert specific text fragments of the letter string to bold (ones that are wrapped in bold tags) before converting to pdf, but I haven't been able to find a way to separate bold from non-bold text besides using Blocks. Is there an easier way to do this just with UI for WPF?

Thanks,

Will

General Discussions

answered on 08 Aug 2017

6 answers

121 views

DataFormDataField.ContentTemplate doesn't work in your latest versions, is it a bug?

I found that DataFormDataField.ContentTemplate doesn't work since version "RadControls for WPF Q2 2013", actually i only have the latest 3 versions. I've tried each one, all the same, just display the default textbox. My code is simple, just copy from your online documentation, as below:
<Grid x:Name="LayoutRoot" Background="White">
<Grid.Resources>
<DataTemplate x:Key="MyTemplate">
<StackPanel Orientation="Horizontal" >
<telerik:DataFormDataField>
<telerik:DataFormDataField.LabelTemplate>
<DataTemplate>
<Label Foreground="Orange">Title:</Label>
</DataTemplate>
</telerik:DataFormDataField.LabelTemplate>
<telerik:DataFormDataField.ContentTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBox Text="25" Margin="0,0,10,0" />
<TextBlock Text="years" Foreground="Green" VerticalAlignment="Bottom" />
</StackPanel>
</DataTemplate>
</telerik:DataFormDataField.ContentTemplate>
</telerik:DataFormDataField>
</StackPanel>
</DataTemplate>
</Grid.Resources>
<telerik:RadDataForm x:Name="DataForm1"
AutoGenerateFields="False"
ReadOnlyTemplate="{StaticResource MyTemplate}">
</telerik:RadDataForm>
</Grid>

MOST URGENT, PLEASE ANSWER IT QUICKLY, THANK YOU!!

DataForm

answered on 08 Aug 2017

4 answers

309 views

[Solved] RadCartesianChart reusing MVVM DataContext

I have a RadCartesianChart defined in XAML with multiple series. Each series has the ItemsSource, HorizontalAxis, VerticalAxis and Visibility bound to MVVM model properties. The ChartView itself has the DataContext bound inherently from the DataContext of my chartviewer usercontrol's DataContext.

When my control is first displayed, everything works as expected, the chart is displayed correctly and I can switch through the different series with different data and different label formats.

The chartviewer control is part of a ContentControl which picks the relevant View from the assigned DataContext type. This is switched depending on user input.

Firstly, if I navigate away from the chartviewer control I have to use the following code to prevent a "Cannot modify the logical children for this node at this time because a tree walk is in progress" exception from the ChartView:-

private void ChartViewer_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
      if (e.NewValue == null)
      {
            chartCart.DataContext = null;
            chartCart.UpdateLayout();
      }
}

Secondly if I then go back to the ChartViewer reusing he same MVVM model that was previously used, the ChartView now show "HorizontalAxis not set" and "VerticalAxis not set". It does not matter what I change on the model, I cannot get the chart to show anything else. When using Visual Studio to look at the ChartView, the DataContext binding is valid, the series are all there, and all of the series have correct bindings to the model properties and seem to be correct. I noticed that the axes get their Chart property set when assigned to the series, so I have tried rebuilding the axes in the same way I do when the chart is working (first view).

I have also tried binding the DataContext of the ChartView to a different DependencyProperty which allows me to get away from the exception (noted above), but still the same problem. I have tried stepping through the Visual Tree and rebuilding all of the bindings to ensure they are all active, but this has no effect.

What would cause the EmptyContent message to show when there are series available, each with axes set and are visible, and have point data?

ChartView

answered on 08 Aug 2017

5 answers

246 views

Bing maps v7

Hi,

We use the standard bing map provider in our WPF apps (2016.2.503.40).

We have just received notification that Microsoft are retiring Bing Maps AJAX Control and the SOAP Web Services on June 30, 2017.

Will this affect our current apps, or does the map control use v8\rest services?

Thanks,

Lee

Map

answered on 08 Aug 2017

4 answers

666 views

Updating a DataTable with RadGridView

I am trying to update a DataTable using a RadGridView. The data is displayed but whenever a column is edited and the cursor moved off the column the old data reappears. E.g. the underlying DataTable is not updated.

<Window x:Class="TestRadGridEdit.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"

xmlns:gridView="clr-namespace:Telerik.Windows.Controls.GridView;assembly=Telerik.Windows.Controls.GridView"

xmlns:Controls="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView"

xmlns:data="clr-namespace:Telerik.Windows.Data;assembly=Telerik.Windows.Data"

Title="MainWindow" Height="350" Width="525">

<Grid>

<Controls:RadGridView Name="radGridView_HeadOfHouse" AutoGenerateColumns="False" ItemsSource="{Binding GetData}" DataContext="{Binding ElementName=radGridView_HeadOfHouse, Path=DataContext}">

<Controls:RadGridView.Columns>

<Controls:GridViewDataColumn UniqueName="FirstName" Header="First Name" DataMemberBinding="{Binding FirstName, Mode=TwoWay}" />

<Controls:GridViewDataColumn UniqueName="LastName" Header="Last Name" DataMemberBinding="{Binding LastName, Mode=TwoWay}" />

</Controls:RadGridView.Columns>

</Controls:RadGridView>

</Grid>

</Window>

using System.Data;

using System.Windows;

using System.Windows.Data;

using Telerik.Windows.Controls;

namespace TestRadGridEdit

{

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

Binding bind = new Binding();

bind.Source = GetData();

radGridView_HeadOfHouse.SetBinding(RadGridView.ItemsSourceProperty, bind);

}

public DataTable GetData()

{

DataTable dt = new DataTable("Testing");

dt.Columns.Add(new DataColumn("FirstName"));

dt.Columns.Add(new DataColumn("LastName"));

DataRow dr = dt.NewRow();

dr["FirstName"] = "Tom";

dr["LastName"] = "Smith";

dt.Rows.Add(dr);

dr = dt.NewRow();

dr["FirstName"] = "Fred";

dr["LastName"] = "Smith";

dt.Rows.Add(dr);

dr = dt.NewRow();

dr["FirstName"] = "Jack";

dr["LastName"] = "Smith";

dt.Rows.Add(dr);

dr = dt.NewRow();

dr["FirstName"] = "Joe";

dr["LastName"] = "Smith";

dt.Rows.Add(dr);

dt.AcceptChanges();

return dt;

}

What am I missing?

GridView

answered on 08 Aug 2017

0 answers

176 views

How to bind List<string> as itemsource

I need to bind List<string> to a treeview, the string is cut by /，like "a/b/c/d" ,''a/b/e/f" ,"a/b/c/g" ,

Is any simple method to bind it without constructing a cascading object？

TreeView

asked on 08 Aug 2017

1 answer

706 views

RadGridView ItemsSource using DataTable

Hello Telerik,

I'm using a DataTable to set my RadGridView ItemsSource. My grid was set like this :

_Xaml

<telerik:RadGridView x:Name="gridSaisie" Grid.Row="1" HorizontalAlignment="Stretch" Margin="5" ShowGroupPanel="False" CanUserInsertRows="False" CanUserDeleteRows="False" CanUserReorderColumns="False" RowIndicatorVisibility="Collapsed" AutoGenerateColumns="False" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto" CellValidating="gridSaisie_CellValidating" CellEditEnded="gridSaisie_CellEditEnded" RowEditEnded="gridSaisie_RowEditEnded"/>

_C#

private void ConstructGrid()

{

//Création de la colonne de dates

GridViewDataColumn colonneDate = new GridViewDataColumn();

colonneDate.DataMemberBinding = new Binding("Date");

colonneDate.Header = "Jour";

colonneDate.UniqueName = "Jour";

colonneDate.DataFormatString = "{0: dd}";

colonneDate.IsReadOnly = true;

colonneDate.Width = 150;

colonneDate.IsSortable = false;

colonneDate.IsFilterable = false;

colonneDate.HeaderTextAlignment = TextAlignment.Center;

//colonneDate.DataType = typeof(DateTime);

this.gridSaisie.Columns.Add(colonneDate);

//Création dynamique des colonnes

foreach (Variable v in this.ViewModel.Variables)

{

GridViewDataColumn colonneVariable = new GridViewDataColumn();

var bindVariable = new Binding(string.Format("Variable_{0}", v.Id));

bindVariable.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;

bindVariable.StringFormat = "{0:F1}";

bindVariable.Mode = BindingMode.TwoWay;

colonneVariable.DataMemberBinding = bindVariable;

colonneVariable.Header = v.Code;

colonneVariable.UniqueName = string.Format("Variable_{0}", v.Id);

colonneVariable.IsReadOnly = false;

//colonneVariable.Width = ;

colonneVariable.IsSortable = false;

colonneVariable.IsFilterable = false;

colonneVariable.HeaderTextAlignment = TextAlignment.Center;

//colonneVariable.DataType = typeof(double);

this.gridSaisie.Columns.Add(colonneVariable);

}

private void LoadData(int idStation)

{

this.gridSaisie.ItemsSource = this

.ViewModel.Jours; //Its the DataTable

}

I have somes problems :

1) When I set DataType = typeof(...), the displayed values are empty.

2) StringFormat for the Date doesn't work.

3) When I start updating, the cell value is hidden (I think is linq to '4)')

3) I can't update values in the Grid. I found this topic : http://www.telerik.com/forums/updating-a-datatable-with-radgridview where is it explain that the update will be to do manually. So I didi it :

private void gridSaisie_CellEditEnded(object sender, GridViewCellEditEndedEventArgs e)

{

int numCol = e.Cell.Column.DisplayIndex;

int numRow = this.gridSaisie.Items.IndexOf(this.gridSaisie.SelectedItem);

var row = this.ViewModel.Jours.Rows[numRow];

row.BeginEdit();

var colonnes = row.ItemArray;

colonnes[numCol] = e.NewData.ToString();// Convert.ToDouble(e.NewData.ToString());

row.EndEdit();

row.AcceptChanges();

//this.gridSaisie.Rebind();

}