Questions on UI for WPF Forum

5 answers

167 views

Sorting Lost When Refreshing When Binding To DynamicObject

Hi,

We recently updated to the latest release 2020.2.617 and we now have an issue that was not present in 2018.3.911.

Our GridView is bound to a list of objects inheriting from DynamicObject. If the user sorts the list using the mouse and then presses our refresh button the sorting disappears. Our refresh button just binds a completely new list containing the exact same data as before.

In 2018.3.911 the sorting is retained after a refresh.

Any assistance would be greatly appreciated.

Regards
Anthony

GridView

answered on 29 Jul 2020

4 answers

163 views

RadGridView Not Refreshing/Updating with data in Release Mode

Hello,

In debug mode, the RadGridView within the application gets it's information from a SQLCE Database just fine. But once I set it to release mode, The itemsource does have items inside, but the RadGridView shows nothing.

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

//radGridView1.ItemsSource = getData();

radGridView1.IsFilteringAllowed = true;

}

public DataTable getData()

{

// Creating a datatable to bind to the radgrid

DataTable tableItem = new DataTable();

//Readonly Fields, not for inlinje editing

DataColumn code = new DataColumn("Code", typeof(string));

code.ReadOnly = true;

DataColumn product = new DataColumn("Product", typeof(string));

product.ReadOnly = true;

// Adding fields

tableItem.Columns.Add(new DataColumn("Username", typeof(string)));

tableItem.Columns.Add(product);

tableItem.Columns.Add(new DataColumn("Company", typeof(string)));

tableItem.Columns.Add(new DataColumn("Model", typeof(string)));

tableItem.Columns.Add(new DataColumn("Serial", typeof(string)));

tableItem.Columns.Add(new DataColumn("Status", typeof(string)));

tableItem.Columns.Add(new DataColumn("Date", typeof(string)));

tableItem.Columns.Add(code);

// Connection string for the local Database, and grab all the data from it to store into the grid

string conString = Properties.Settings.Default.ExternalInventoryDBConnectionString;

string queryString = "Select * from externalInventory";

using (SqlCeConnection con = new SqlCeConnection(conString))

{

try

{

con.Open();

SqlCeCommand cmd = new SqlCeCommand(queryString, con);

// create data adapter

SqlCeDataAdapter da = new SqlCeDataAdapter(cmd);

da.Fill(tableItem);

}

finally

{

con.Close();

}

return tableItem;

}

Thank you for reading my problem,
Joe Nguyen

GridView

answered on 29 Jul 2020

5 answers

106 views

TreeView edit mode not canceled when focus is lost

Basically, a RadTreeViewItem goes to edit mode, then I click on any other button, label, textbox (outside the tree of course) and the edit mode is not cancelled. Is there a property to allow this or an alternative solution? Let me know.

Here's a video to illustrate my point:

http://www.screencast.com/users/CarloToribio/folders/Jing/media/9942fb25-5217-4f3c-84f3-d4a0f6d38d2a

Thanks!

TreeView

answered on 29 Jul 2020

3 answers

447 views

WatermarkTextBox Width Grow

Good day.

I am using a WatermarkTextBox inside a Grid. The WatermarkTextBox width depends on the Grid's width. I am using HorizontalAlignment="Stretch"

What is happening is when i input long text in my WatermarkTextBox, the textbox is growing. I don't want this to happen.

I can't set a fixed width for the WatermarkTextBox since I need it to adjust based on the Grid's width. I just want the textbox Not to grow when I input long text.

How can I achieve this?

Thank you.

WatermarkTextBox

answered on 29 Jul 2020

1 answer

246 views

Theme change (mouse over)

Hello,

i'm want to change mouse over event to disable in RadPanelBar. I tried several thinks on that topic, but nothing works. I tried this:

https://docs.telerik.com/devtools/wpf/styling-and-appearance/styling-apperance-editing-control-templates?_ga=2.187479073.827374626.1595174688-1718886426.1590775437

When i found component for changing (first i tried to RadButton). I'm change mouse over value property (setter) and nothing change. First i cannot found in Telerik.Windows.Controls.xaml , but i found it in Telerik.Windows.Controls.ConversationalUI.xaml . Pls do you have it some guide how to change it properly ?

Thanks for your time and i'm glad to see your answer.

General Discussions

answered on 28 Jul 2020

2 answers

330 views

Possible to have status bar when using RadTabbedWindow with itemsource?

Hi

We have a RadTabbedWindow with tabs as itemsource. Is it possible to have a status bar at the bottom?

And whenI put in the statusbar-markup I get the error message "System.InvalidOperationException: 'Operation is not valid while ItemsSource is in use. Access and modify elements with ItemsControl.ItemsSource instead.'"

Just for laughs I have tried to add status bar to the user controls for the tabs as well, but it cant go there

<telerik:RadTabbedWindow

...
ItemsSource="{Binding WindowTabs}"
SelectedItem="{Binding SelectedWindowTab, Mode=TwoWay}">

<telerik:RadTabbedWindow.Resources>
...
</telerik:RadTabbedWindow.Resources>

<telerik:RadTabbedWindow.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding TabHeader}" Foreground="Black"/>
</DataTemplate>
</telerik:RadTabbedWindow.ItemTemplate>

<StatusBar Name="sbar" VerticalAlignment="Bottom" >
<StatusBarItem>
<TextBlock>Im a status bar!</TextBlock>
</StatusBarItem>
</StatusBar>
</telerik:RadTabbedWindow>

TabbedWindow

answered on 28 Jul 2020

3 answers

141 views

Very Slow Labels for ScatterAreaSeries RadCartesianChart

I have a chart showing only 3012 scatter area series. Each series is just a filled narrow bar that represents a frequency range, so there are only 2 data points for each series.

When I enable labels, it takes 38+ seconds to draw the chart. When I disable labels (ScatterAreaSeries.ShowLabels = false), it is less than 2 seconds.

Any ideas what is going on? I do have an isolated sample.

(I am running on 64-bit Win 10 with 2017.3.1018.45 (NoXaml)).

Thanks.

-John.

ChartView

answered on 28 Jul 2020

1 answer

879 views

Automatic scrolling for TreeView when node is expanded

Hi,

I am seeing that the wpf TreeView do not scroll automatically to show the expanded nodes, when I expand a node in the tree view(I have to scroll manually after expanding), So I want to achieve the behaviour in the gif that I attached. This was the default behaviour for my legacy winforms tree, but the wpf telerik:RadTreeView does not have that behaviour. How can I achieve that behaviour with wpf telerik:TreeView.

TreeView

answered on 28 Jul 2020

1 answer

151 views

RadDiagram routing sample have different result (newbie)

Hello,

I have copied the Example 1 XAML code from

https://docs.telerik.com/devtools/wpf/controls/raddiagram/features/routing

but the result is not the one shown in Figure 1 of the same link, but the one in the attached image. What is the difference? I have tried changing the DiagramConstants.RoutingGridSize constant, but it does not solve the issue.

Someone can help me?

Thank you!

Diagram

answered on 28 Jul 2020

1 answer

157 views

Orthogonal connections with connection points.

All connections in my project should be orthogonal. I have two type of connection in my project.

Routed connections.
Connections with manually set connection points (“manual connections”).

I use: AStarRouter and WallOptimization = true.

Problem: When I move a shape with „manual connections", this connection is not orthogonal.
Question: Is there a way to keep connections orthogonal and keep connection points?

Diagram

answered on 27 Jul 2020