Questions on UI for WinForms Forum

9 answers

1.0K+ views

Telerik.WinControls.ThemeResolutionService threw an exception

Hi All,

I have a strange issue which I'm hoping someone knows how to fix...

I have a winforms custom control that uses the RadScheduler and RadCalender controls. I originally had a couple of the Office 2010 themes added to the project and these have been removed as the built in colors work just fine. As far as I can see I have removed all references to these themes.
My project copies the Telerik DLLs locally as the clients will not have the Telerik controls instaleld on them.

However, I have built my control in release mode in VS 2010 and copied all the files to a test client machine, and when my control comes to load, I get the following error, and the the application closes:

"The type initializer for 'Telerik.Controls.ThemeResolutionService' threw an exception"

I am doing a tiny bit of custom coloring on the calendar control, but nothing involving styles or themes. Only when I reset the control do I do anything that might call this. This section of code is shown below...

Can anyone tell me how I get around this, or have any suggestions as to what I could do to try to fix it? I've already searched for why this could be happening, but can't seem to find anything I haven't already tried.

private void Calendar_ElementRender(object sender, RenderElementEventArgs e)

{

if (Calendar.SpecialDays.Contains(e.Day, new MyComparer()))

{

e.Element.NumberOfColors = 1;

e.Element.BackColor = Color.Orange;

e.Element.BorderColor = Color.DarkBlue;

}

else

{

e.Element.ResetValue(LightVisualElement.NumberOfColorsProperty, ValueResetFlags.Local);

e.Element.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local);

e.Element.ResetValue(LightVisualElement.BorderColorProperty, ValueResetFlags.Local);

}

Thanks,
Karl

General Discussions

answered on 07 Dec 2012

5 answers

95 views

DateTimeColumn not responding to F4

Hi all,
When I use a comboboxColumn, it opens when I hit the F4. The DateTimeColumn doesn't, but I think it should follow the same behavior as a regular combo. This is hard to explain to a user...

Regards,
Martin

GridView

answered on 07 Dec 2012

3 answers

156 views

Contolling shape and color or RadScrollablePanel Scrollbars

I'm sure I'm missing something simple here, but how do I control the shape and color of the scrollbars in the RadScrollablePanel? I cannot seem to access the scroll bars to style them the way I would like. The example in the top left corner of this page is exactly what I am looking for:

http://www.telerik.com/help/winforms/panels-and-labels-radscrollablepanel-overview.html

Thanks,

G

ScrollablePanel

answered on 07 Dec 2012

2 answers

118 views

Catching F4

For a particular textbox cell I'd like to catch the F4 key to open a popup window with a selection list. This, in itself, works fine. But I need the contents of the cell. So I get the cell value like this:
            Dim ThisRow As GridViewRowInfo = grdPositionen.MasterView.CurrentRow
            Dim Filter As String = ""
            If ThisRow.Cells(1).Value IsNot Nothing Then
                Filter = ThisRow.Cells(1).Value.ToString.Trim
                ....
But for some strange reason I don't get the actual contents of the cell, but the original contents instead. In other words; when the user just typed something else there, it's not in the Value property. How do I get the actual contents of the cell?

GridView

answered on 07 Dec 2012

6 answers

186 views

Error when added new appointment

I used code from example and got error when trying to add a new appointment.

Thank for you help...

Unable to cast object of type 'System.Guid' to type 'System.IConvertible'.Couldn't store <5303d57e-81d4-4399-9b50-cbade2462a09> in ID Column. Expected type is Int32.

Scheduler and Reminder

answered on 07 Dec 2012

6 answers

513 views

Custom button in 4th column

I want to do something similar (I think) to this:
http://www.telerik.com/help/winforms/listview-custom-items.html

What I want to do is this: I have a RadListView control with 4 columns in a ViewType of DetailsView. The first 3 columns will just display some text in each cell/row, but the 4th cell in each row I want to have a "Remove" button to remove it from the list. So what I need to be able to do is:

Create a Button element to serve as the value for the 4th cell in each row

and

Be able to define and handle the click event for that button (will need some way to identify the row that the button was clicked for as well)

The code I have right now (created based on the example) just displays the button in the first column and none of the text for the first 3 columns seems to get created/inserted.

public class ListViewItemButton : SimpleListViewVisualItem

{

private RadButtonElement buttonElement;

private LightVisualElement contentElement;

private StackLayoutPanel stackLayout;

protected override void CreateChildElements()

{

base.CreateChildElements();

this.stackLayout = new StackLayoutPanel();

this.stackLayout.Orientation = Orientation.Horizontal;

this.stackLayout.EqualChildrenWidth = true;

this.contentElement = new LightVisualElement();

this.contentElement.StretchHorizontally = true;

this.contentElement.MinSize = new Size(60, 0);

this.stackLayout.Children.Add(this.contentElement);

this.buttonElement = new RadButtonElement();

this.buttonElement.Text = "Remove ";

this.stackLayout.Children.Add(this.buttonElement);

this.Children.Add(this.stackLayout);

}

protected override void SynchronizeProperties()

{

base.SynchronizeProperties();

this.Text = "";

this.buttonElement.Text = "Remove ";

}

protected override Type ThemeEffectiveType

{

get

{

return typeof(SimpleListViewVisualItem);

}

and my handler...

private void HandleRadListViewVisualItemCreating(object sender, ListViewVisualItemCreatingEventArgs e)

{

e.VisualItem = new ListViewItemButton();

}

I don't know how to tell it to only make the VisualItem be the button for the 4th column, not all of them.

Thanks,
--Jason

ListView

answered on 07 Dec 2012

2 answers

94 views

Get Filter Rows Q2 2011

Hi
i update code from to Q2 2011 in old version when i use RadGrirdView and i type in Filter Text
to get me certain rows as in my attachment ,when use the following code it not get me the result row

DataRowView m_dgrvCurrent;

m_dgrvCurrent = (DataRowView) (radGridViewCountries.DataSource as BindingSource).Current;

Please tell me how i can get the Filter rows not seletedrow
this code run before fine but here get me a first row in all data not viewed on Grid

Thank you
Mahmoud Salem

GridView

answered on 07 Dec 2012

2 answers

211 views

Background Color

Hello,

how can I change the background color of a radRichTextBox? I tried to change the BackColor in the Properties section but this didn't affect the result. In Addition I tried to implement it to the code like this:

this

.RichTextBox1.RichTextBoxElement.BackColor = System.Drawing.Color.Gray;

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 07 Dec 2012

1 answer

105 views

New version of Visual style builder?

Hello can we expect a new version of visual style builder for winforms? if so what would be the ETA?

Thank you

Themes and Visual Style Builder

answered on 06 Dec 2012

3 answers

131 views

Relation does not show

Hello,

I try to create a relation between the MasterTemplate and a ChildTemplate.

The DataSources for the templates have to be filled manually, due they come from different sources (REST and .Net-Remoting).

After fill in the data, I create a relation between them

var relation = new GridViewRelation(_StockGridView.MasterTemplate);

relation.ChildTemplate = _PartsTemplate;

relation.RelationName = "PartToArticleCode";

relation.ParentColumnNames.Add("ID");

relation.ChildColumnNames.Add("ArticleCodeID");

this._StockGridView.Relations.Add(relation);

Unfortunatly... this does not work (anymore!). It worked the first time I created the form etc., but after I've added a control to a container to the form (not to the grid), the gridview refuses to show the hierarchy anymore.

Maybe someone got a clue... I haven't :(

Regards,
Steffen

GridView

answered on 06 Dec 2012