Questions on UI for WinForms Forum

1 answer

116 views

[Solved] The properties set at design time are not saved

The properties set at design time are not saved.

version : 2019.2.618.40

DropDownList

answered on 17 Nov 2020

1 answer

270 views

Use of Layout Control

I am having problems understanding how to use this control. I have already created a form without it, but I can start all over, no problem. I just find it confusing how to lay it out. I have attached a screen shot of what I want in the layout control. Perhaps a short video demonstrating on how to partially construct this layout.

LayoutControl

answered on 16 Nov 2020

8 answers

490 views

textbox column with formated

Dear all,

Can we formated textboxcolumn in grid with this format ? "XXXX-XX.XX" without maskededitboxcolumn ?

Thanks Before

GridView

answered on 16 Nov 2020

3 answers

78 views

SearchRowPosition

Just upgraded to R3 and running program I am having the following error:

SearchRowPosition Failed

Telerik.WinControls.UI.SystemRowPosition is not available in the target framework. Using framework 4.7.2, which is the same I was using in the previous release.

GridView

answered on 16 Nov 2020

1 answer

2.2K+ views

Convert from Visual Basic to C#

We have been slowly moving away from an antiquated system, "Unidata". We have just completed converting the entire ERP system to Winforms with Visual Basic (interface only. it still is pulling data from Unidata). Next year, we will begin converting from Unidata database to MS SQL. In the future, we will move to C#. I proposed to my team to NOT wait, but to use C# when we convert to MS SQL (at the very least all db calls should be in C#).

We are using VS 2015, .Net 4.7.2, and Telerik WinForms 2019.1.117.40

Before we start the conversion, I would like to move to VS 2019, .Net 5, and the latest Telerik WinForms version

Here is my question:

Is there a recommended conversion tool when moving from Visual Basic to C# that works best for Telerik Winforms?

General Discussions

answered on 16 Nov 2020

1 answer

413 views

GridView: CheckBox visible and enabled conditionally.

Hi,

In some rows of the grid I need the CHECKBOX to be visible and enabled. How do I do that?

I attach an image.

Best regards.

GridView

answered on 12 Nov 2020

3 answers

1.1K+ views

GridView : Change Text not Value in grid cell

Dear sir/madam,

I am using Telerik Gridview in Winforms. Data is bound to the grid.
I tried to use the CellFormatting event to change the text (that is the visual part) of a particular cell, but it does not work. Changing the value of the cell does work, but that is not wanted.
What I try to achieve is to add some extra text at the end of the text in the cell and add an icon (image) in the cell, without changing the value of the databound item.

Any help is appreciated.

GridView

answered on 12 Nov 2020

1 answer

137 views

Connecting a connection to another connection

Hello Telerik staff,

First of all, allow me to thank you for all the help your team has provided me. After implementing custom shapes in my RadDiagram, I discovered that I require to create a connection that allows me to link other connections to it (please, see attached image). I have perused the forum and the documentation, but I have not found any clue that could lead me to a solution.

Thank you very much.

Diagram, DiagramRibbonBar, DiagramToolBox

answered on 12 Nov 2020

1 answer

181 views

Creation of a custom tool and utilization of custom RadDiagramConnection along with the ConnectorTool

Dear Telerik staff,

I am trying to insert a customized connection using the default ConnectorTool into my RadDiagram. However, this seems near impossible because the library does not expose a method to do that, as WPF does (https://www.telerik.com/forums/using-connection-tool-to-draw-custom-connection). Consequently, I decided to create a custom tool, but it is not working. I need a tool that provides the same functionality as the ConnectorTool, but that employs a customized connection that contains its own visual traits and a set of extra properties/variables.
My current code is as follows:

public class CustomTool : ToolBase, IMouseListener

{

public CustomTool(string name) : base(name)

{

this.Name = name;

}

IConnection currentConnection = null;

Point lastPoint;

public virtual bool MouseDown(PointerArgs e)

{

try

{

if (this.ToolService.ActiveTool != null && this.ToolService.ActiveTool.Name.Equals(this.Name))

{

HitTestService hitTestService = MainMenu.getDiagram().ServiceLocator.GetService<IHitTestService>() as HitTestService;

if (this.currentConnection == null)

{

this.currentConnection = new CustomRadDiagramConnection(System.Drawing.Color.FromArgb(150, 45, 90), "test");

if (hitTestService.ShapeUnderMouse != null)

{

this.currentConnection.Source = hitTestService.ShapeUnderMouse;

}

this.currentConnection.StartPoint = e.TransformedPoint;

this.currentConnection.EndPoint = this.lastPoint = e.TransformedPoint;

this.Graph.Items.Add((RadElement)this.currentConnection);

hitTestService = null;

return true;

}

catch (NullReferenceException)

{

MessageBox.Show("Not working");

}

return true;

}

protected override void OnActivated()

{

base.OnActivated();

this.lastPoint = new Point(0, 0);

this.currentConnection = null;

}

protected override void OnDeactivated()

{

base.OnDeactivated();

this.ToolService.ActivateTool("Pointer Tool");

this.Graph.AddConnection(currentConnection);

//this.Graph.Items.Remove((RadElement)this.currentConnection);

this.currentConnection = null;

}

public virtual bool MouseMove(PointerArgs e)

{

if (this.currentConnection != null && this.IsActive)

{

this.currentConnection.EndPoint = this.lastPoint = e.TransformedPoint;

this.currentConnection.Update();

return true;

}

return false;

}

public virtual bool MouseUp(PointerArgs e)

{

HitTestService hitTestService = MainMenu.getDiagram().ServiceLocator.GetService<IHitTestService>() as HitTestService;

if (IsActive)

{

if (hitTestService.ShapeUnderMouse != null)

{

this.currentConnection.Target = hitTestService.ShapeUnderMouse;

}

this.currentConnection.EndPoint = this.lastPoint;

this.currentConnection.Update();

this.DeactivateTool();

hitTestService = null;

return true;

}

return false;

}

public bool MouseDoubleClick(PointerArgs e)

{

return false;

}

Thank you

Diagram, DiagramRibbonBar, DiagramToolBox

answered on 12 Nov 2020

4 answers

175 views

ContainerShape that "fills" the diagram area and with fixed shapes

I am planning to include two types of radDiagramContainerShape in my project:

1) The first one holds all the shapes that will be created and inserted into the Diagram; hence, it must fill the whole area of the diagram. In other words, it should behave as if it were docked to its parent (radDiagram) in dock.fill mode.
2) The second one will be created each time a "special" shape is instantiated. Then, that shape will be added and locked to it. This container should behave normally with any other shape, but the special one. The special shape must remain fixed to the container.

I have been reviewing the accessible properties and events, but I have not found a way of achieving it yet.

Thank you for your help!

Diagram, DiagramRibbonBar, DiagramToolBox

answered on 11 Nov 2020