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1 answer
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hello

 

I have multiple cameras attached to the system and at the time , I wanted to display result of 3 cameras in small screen and 1 from these cameras in a big picture box. But When I select one of the came and take snapshots and display the result in picture box, the video start displaying in a picture box but the selected camera starts blinking. In case, if you didn't understand my problem I have attached a video and a code.


Please guide me how I can display the selected camera video feed in a picture box and it should not blink.

Dinko | Tech Support Engineer
Telerik team
 answered on 08 Jul 2022
1 answer
266 views

I have just recently upgraded to the latest version of WinForms (2022.2.622.40), along with upgrading from .net 4.6 to 4.7.2 to take advantage of High DPI updates.

When I start my application, is simply goes away without reporting any error.

When I look at the Windows Event Viewer Application Logs I see the following error:

Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentNullException
   at Telerik.WinControls.RadSvgImage.FromByteArray(Byte[])
   at Telerik.WinControls.UI.RadPictureBoxElement.InitializeFields()
   at Telerik.WinControls.RadElement..ctor()
   at Telerik.WinControls.RadItem..ctor()
   at Telerik.WinControls.UI.LightVisualElement..ctor()
   at Telerik.WinControls.UI.RadPictureBox.CreateImageEditorElement()
   at Telerik.WinControls.UI.RadPictureBox.CreateChildItems(Telerik.WinControls.RadElement)
   at Telerik.WinControls.RadControl.Construct()
   at Telerik.WinControls.RadControl..ctor()
   at AGD.Cobalt.ScenarioTool.SplashForm.InitializeComponent()
   at AGD.Cobalt.ScenarioTool.SplashForm..ctor()
   at AGD.Cobalt.ScenarioTool.SplashForm.ShowForm()

I'm running on Windows 11, and have merged all dll's together using ILmerge (if t

I should add that my form has a single RadPictureBox with a small image loaded from the project resource but has defaults for SvgImage. DefaultImage and DefaultSvgImage 

Any ideas? is there a workaround ?

Thanks in advance

Toby

Stoyan
Telerik team
 answered on 08 Jul 2022
1 answer
232 views

Greetings, you can indicate how to change the height of the headers or tabs of a radPageView, it is preferred at design time. if not possible by code.

 

I'm using Telerik Windows Forms 2022.1.222.40
Visual Studio 2022

Maria
Telerik team
 answered on 08 Jul 2022
3 answers
147 views

Hello, I want to use SyntaxEditor for coloring and folding of my very simple custom language for defining sequence of steps. I have already made some tests and have no problem with coloring. But I have two questions to SyntaxEditor folding. My language is very simple, it's just sequence of steps, but now I have to implement if/else/endif handling.

1. If I add folding pair if/endif, it works ok, but what if I want to fold if and else branches separately? Is it possible to do folding somehow like on this screenshot? I tried similar code it in Visual Basic, VB folds whole section from if to endif, but I would like to do it like on the screenshot, if it's possible.

2. How can I customize the folding "title" (I don't know the exact terminology). I added a #region / #endregion to previous sample, and it's folding like on this screenshot:

I would like it like in Visual Studio, in case of if statement, you can see the condition, but region hides also the region directive, like on the next screenshot.

I know, C# is folding command block with braces, so it's different situation, but is it possible to do it like this also with my custom language?

I attached also my project, if it's needed for something.

Thanks.

Marian
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Iron
 updated answer on 06 Jul 2022
1 answer
126 views

Hello, how can I block the arrow keys from the Scheduler so that the user cannot change the month view's calendar?

I have blocked out and set all the days that is not within X month to be hidden, so I do not want the user to be able to use the arrow keys and accidentally change the view.

 

Also, related to the scheduler, how can I loop through and go through the entire month day-by-day to grab all the appointments?

Something like, for each day in MONTH....

 

Thank you

Dinko | Tech Support Engineer
Telerik team
 answered on 06 Jul 2022
1 answer
238 views

Hello,
I am getting to know the RADPropertyGrid control, it seems flexible.
I have an XML file where "Key" would be the property name and "Value" would be the value in RADPropertyGrid. Where required, I also have a value list between the "ValueList" element. My question is, how can I pass the XML so that the value list for that element is displayed as a string in a combobox in the RADPropertyGrid associated with the property?

Can you show me a sample project on how to do this?

Sample XML:

<PictureBox>
    <Property>
        <Key>EnableClickZoom</Key>
        <Value>False</Value>
    </Property>
    <Property>
        <Key>EnableZoom</Key>
        <Value>False</Value>
    </Property>
    <Property>
        <Key>EnableAutoPan</Key>
        <Value>False</Value>
    </Property>
    <Property>
        <Key>SizeMode</Key>
        <Value>Fit</Value>
        <ValueList>
            <Value>Normal</Value>
            <Value>Stretch</Value>
            <Value>Fit</Value>
        </ValueList>
    </Property>
    <Property>
        <Key>Zoom</Key>
        <Value>30</Value>
    </Property>
    <Property>
        <Key>InterpolationMode</Key>
        <Value>Default</Value>
        <ValueList>
            <Value>Default</Value>
            <Value>Low</Value>
            <Value>High</Value>
            <Value>Bilinear</Value>
            <Value>Bicubic</Value>
            <Value>NearestNeighbor</Value>
            <Value>HighQualityBilinear</Value>
            <Value>HighQualityBicubic</Value>
        </ValueList>
    </Property>
</PictureBox>
Dinko | Tech Support Engineer
Telerik team
 answered on 05 Jul 2022
1 answer
361 views

Would it be possible in the next release to expose the panel border visibility at design time in the properties window, rather than having to navigate through "Edit UI Elements" (or via code). I have a lot of panerls where I don't want to see the border at run time but do need to see it sometimes at design time.

 

Thanks

Dinko | Tech Support Engineer
Telerik team
 answered on 05 Jul 2022
1 answer
113 views

Hi,

when calling the Initialize method WebCam fires an exception.

This is also in your demo application.

Version 2022.2.511.40, WinUI

Regards

Hardy

Todor
Telerik team
 updated answer on 01 Jul 2022
2 answers
133 views

Hi.

I want the user to be able to sort the tabs as they want.

Is there any way to sort the tabs programmatically?  

levenzer
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Iron
 answered on 30 Jun 2022
1 answer
572 views

Is there some simple method to stacking custom controls inside of a radpanel (or other element)?  I have a Radpanel that I want to add strips of custom FileUploadRecord Controls to that vertically stack.

I still need to wrap my head around docking, floating, anchoring, position, auto size, etc, but my current method of adding is:

pnlFiles.Controls.Add(new FileUploadRecord());

Dess | Tech Support Engineer, Principal
Telerik team
 answered on 30 Jun 2022
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