Questions on UI for WinForms Forum

5 answers

550 views

[Solved] Problem with RadTextBox.Focused in Telerik 2010Q1

I have a piece of code that refreshes a RadTextBox Text property depending on external events. In order not to change the Text property while the user is typing in the text box I check the Focused property first and proceed in overwriting the Text property only if it is false, the relevant code looks like this:

    
            private void event_ExternalUpdate(object sender, EventArgs args) 
        
            { 
        
                if (!textBox.Focused) 
        
                    textBox.Text = "foo"; 
        
            }

However in Telerik 2010Q1 this does not seem to work. I have tried to check at runtime and apparently the Focused property is always false even though I am editing that particular text-box. I have made a super-simplified test case and tried it with both Telerik 2009Q3 and 2010Q1 and it works correctly under version 2009Q3 (Focused is set to true when I'm typing in the field) but not on 2010Q1. Is this a bug or is there another way to check if a specific control has the input focus?

As a temporary workaround I noticed that the FocusedElement property is null when the text-box doesn't have the input focus and points to the embedded RadTextBoxItem when it has focus so I'm using it instead. However because FocusedElement is not documented I am a bit wary of using it.

TextBox

answered on 15 Feb 2012

1 answer

140 views

RichtextBox Video

Hello,

I understand the RichTextBox in conjunction with a RibbonBar can be used to create an Editor for WinForms applications. Can you direct me to any video detailing its capabilities. I want to build an integrated Editor solution within the WinForms application and want to ensure I get most of the functionality you would get with MSWord such as paragraphs, formatting, bullets, tables, headers, footers etc.

Also I believe this is only available with framework 4.0?

Thank You,

Kerry

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 15 Feb 2012

1 answer

135 views

Change a RadButton theme after application theme has been applied

I've applied a theme to the application using

ThemeResolutionService.ApplicationThemeName = "MyTheme";

All works as expected, my theme is applied.

Later on in the application, one specific RadButton needs to have a different theme applied programatically, say "MyThemeWarning"

So I try

myButton.ThemeName = "MyThemeWarning";

but nothing changes, the button remains with the theme that was applied to the application. I have verified MyThemeWarning is being loaded by the ThemeResolutionService.

What is the correct way to change the theme of a specific RadButton after the ApplicationThemeName has been set?

Themes and Visual Style Builder

answered on 14 Feb 2012

1 answer

296 views

Add RadDropDownList to RadGridView

I'm sure I'm missing something very simple here but I want to add a RadDropDownList to a RadGridView at design time but can't find where I change the default RadGridViewTextBox column to something else. I've looked at several code examples for doing this dynamically but want to know how to do it at design time please. I also want to be able to add CheckBox columns etc. but figure once I get an answer to the first question the others will be relatively similar. My environment is WinForms.

Thanks and best regards

GridView

answered on 14 Feb 2012

1 answer

201 views

[Solved] Issue while calling MultiColumnComboBoxElement.ShowPopup() method

Hi,

As my Multi-Column combo box contains huge(records in lakhs) data , i am binding Corresponding data on enter key ,after typing data in Multi-Column combo box control .
After binding data ,i am calling MultiColumnComboBoxElement.ShowPopup() method then i am getting error, i am unable to reproduce this issue every time.
Even i am unable to capture scenario.
Please see attached image ,check if you people can do any help for me .

Thanks.

MultiColumn ComboBox

answered on 14 Feb 2012

2 answers

366 views

Cannot populate a RadDropdownlist

Hello,

I am using a RadDropdownList but for some reason I cannot get the dataset's table to bind to the Raddropdownlist. However when I use a standard windows combobox the data binds ok.

//This doesn't work with the RadDropdownList..."Lookup" is the name of the datatable within the dataset.
DataSet ds = oLkp.GetLookupValues("matterTypeId, matterType", "tblMatterTypes", "matterType");
this.cmbMatterType.DisplayMember = "Lookup.matterType";
this.cmbMatterType.ValueMember = "Lookup.matterType";
this.cmbMatterType.DataSource = ds;

//Same code using a standard winform combobox, this works fine.
this.comboBox1.DisplayMember = "Lookup.matterType";
this.comboBox1.ValueMember = "Lookup.matterTypeId";
this.comboBox1.DataSource = ds;

Is there an extra step to using these new controls or a design time property that must be set....I know this control replaces the RadCombobox. Using 2011.3.11.1116

Thanks,

Kerry

DropDownList

answered on 14 Feb 2012

3 answers

179 views

[Solved] scroll grid while dragging cell

How can I scroll the grid while I'm dragging a cell from the same grid?

Here is a sample-project to clarify my question (file is deleted): sample-project

GridView

answered on 14 Feb 2012

3 answers

202 views

Can't add a RadDock control into a RadPanel

I have RadDock control on a RadForm that i would like to move into a RadPanel. These are my steps:

Select the RadDock.
Cut the RadDock
Drag a RadPanel onto my RadForm
Enlarge the size of the RadPanel
Select the RadPanel, right clik in it and click Paste

Then Visual Studio always throws this error: "Cannot add component of type 'DocumentTabStrip' to container of type 'RadPanel'. "
** I am using Telerik RadControls for WinForms 2011 Q2
How do i add a RadDock Control inside any other container? Is it possible anyway?

Thanks

Dock

answered on 14 Feb 2012

1 answer

174 views

RadRichTextBox theme and text problems

Hello,

We have two issues with the RichTextBox component:

1/ I can not find the RichTextBox in the Visual Style Builder.... It seems we can apply a theme on this component since in the Proprieties there is an option as "Theme Name". Please let me know where can I find it.

2/ Also when we had a RadRichTextBox in Visual Studio, the text set up in the proprieties doesn't appear in Visual Studio or when we run the form. Any idea why? We need multiline and HTML formatting for the text that's why we chose this component.

Thank you.
Regards,
Ludovic

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 14 Feb 2012

2 answers

197 views

Metro theme broken?

Whenever i use the Metro blue theme, the ribbon looks weird, and the quickaccessToolbar is a bit windows 2000 like.
The application button is also moved a bit down-right.
Is there any specific way i need to use the theme?
because i tried alot, but i can't get it to work.

Sincerly, me

Themes and Visual Style Builder

answered on 14 Feb 2012