Questions on UI for WinForms Forum

3 answers

210 views

Quote from https://docs.telerik.com/devtools/winforms/controls/gridview/rows/formatting-rows:

"To customize the non-data rows (header row, new row, filtering row, etc) of RadGridView, you need to handle the ViewRowFormatting event."

In that regard, how can I detect newly added row/s from ViewRowFormatting event?

Please know that I couldn't use the CreateRow event since it uses UI virtualization and it doesn't trigger for newly added rows that are not "visible" on the screen.

GridView

answered on 14 Jul 2020

5 answers

784 views

DragDrop event not fired but Over/Enter/Leave yes in RadForm

Hi,

I am just trying to drag&drop a file from the desktop to a simple radForm but DragDrop event do not fired, others events as DragEnter/DragOver/DragLeave works without problems but I can not detect when the user perform drag&Drop with the file into the form.

any idea why I can not catch this event?

namespace Drag

{

partial class RadForm1

{

/// <summary>

/// Required designer variable.

/// </summary>

private System.ComponentModel.IContainer components = null;

/// <summary>

/// Clean up any resources being used.

/// </summary>

/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

protected override void Dispose(bool disposing)

{

if (disposing && (components != null))

{

components.Dispose();

}

base.Dispose(disposing);

}

#region Windows Form Designer generated code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.visualStudio2012LightTheme1 = new Telerik.WinControls.Themes.VisualStudio2012LightTheme();

((System.ComponentModel.ISupportInitialize)(this)).BeginInit();

this.SuspendLayout();

//

// RadForm1

//

this.AllowDrop = true;

this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(643, 488);

this.Margin = new System.Windows.Forms.Padding(4);

this.Name = "RadForm1";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "RadForm1";

this.ThemeName = "VisualStudio2012Light";

this.DragDrop += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragDrop);

this.DragEnter += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragEnter);

this.DragOver += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragOver);

((System.ComponentModel.ISupportInitialize)(this)).EndInit();

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.Themes.VisualStudio2012LightTheme visualStudio2012LightTheme1;

}

namespace Drag

{

partial class RadForm1

{

/// <summary>

/// Required designer variable.

/// </summary>

private System.ComponentModel.IContainer components = null;

/// <summary>

/// Clean up any resources being used.

/// </summary>

/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

protected override void Dispose(bool disposing)

{

if (disposing && (components != null))

{

components.Dispose();

}

base.Dispose(disposing);

}

#region Windows Form Designer generated code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.visualStudio2012LightTheme1 = new Telerik.WinControls.Themes.VisualStudio2012LightTheme();

((System.ComponentModel.ISupportInitialize)(this)).BeginInit();

this.SuspendLayout();

//

// RadForm1

//

this.AllowDrop = true;

this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(643, 488);

this.Margin = new System.Windows.Forms.Padding(4);

this.Name = "RadForm1";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "RadForm1";

this.ThemeName = "VisualStudio2012Light";

this.DragDrop += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragDrop);

this.DragEnter += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragEnter);

this.DragOver += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragOver);

((System.ComponentModel.ISupportInitialize)(this)).EndInit();

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.Themes.VisualStudio2012LightTheme visualStudio2012LightTheme1;

}

Thanks a lot.

Francisco

Form

answered on 14 Jul 2020

1 answer

1.8K+ views

How to change ProgressBar color?

I'd like to change progressbar color depending on value, for example:

>50 - red

<=50 - green

How to do it in app?

ProgressBar

answered on 13 Jul 2020

12 answers

223 views

Ruler Scale Problems

I've changed some values on the Ruler element:

Startscale : 7
Endscale : 19
RangeFactor : QuarterlyHour

Problems encountered (tested over DayView):
1. Appointment area below the 12th has no lines

2. When right clicked over the appointment area and selected Next or Previous Day, the scale and range values return to their default values. Where can I find the property to set the values found for those two items in the context menu?

Also, if I may ask another question:
How can I change the text and remove items from the context menu? (e.g. New Appointment changed to New Meeting)

Sample Project Solution
http://www.megaupload.com/?d=D3SP8XR6

Scheduler and Reminder

answered on 13 Jul 2020

4 answers

100 views

RadPropertyGrid1_CreateItemElement works for visible items only

I create the PropertyGrid in Dock Window.

This Window has a size less then PropertyGrid.

But: the function RadPropertyGrid1_CreateItemElement works for visible items only and all unvisible is not created and it is the reason of exception.
How to force the RadPropertyGrid1_CreateItemElement works for all items in the propertyGrid ?

PropertyGrid

answered on 13 Jul 2020

1 answer

93 views

Load images in cell

I have configured a radgridview element where we load approximately 1000 records. After loading the Database elements, I need to configure an icon column as shown in the image (IMG01). This icon is not part of the information of the database object but I load it directly to the radgridview column (IMG02). On the first item load this loop takes no more than 1 second for the 1000 items in the table.

If I make any changes and reload all the information from the database, the next execution of that loop takes about 40 seconds.

The image code IMG02 always runs after the image code IMG03.

Is there a way to improve the loading of these images in the radgridview element?

Thank you!

GridView

answered on 13 Jul 2020

1 answer

738 views

How to copy a row and paste it into a new row added in a unbound RadGridView winform

hello is it possible to copy a row and paste it into a new row added in a unbound RadGridView winform?
I am attaching a screenshot of the RadGridView
If it cannot be done with copy paste from keyboard or mouse, can it be done with programming?

GridView

answered on 13 Jul 2020

4 answers

158 views

CellFormatting on RunExportAsync

I ma using Telerik.WinControls.Export.GridViewSpreadExport to export data to XLSX.

The CellFormatting event is not called when using RunExportAsync().

It is only called when using RunExport();

Why is that?

GridView

answered on 13 Jul 2020

2 answers

245 views

Unable to enter negative value to Numeric Mask Currency

I’m using WinForms RadMaskedEditBox MaskType: Numeric, Mask: c2, whenever I try to type negative number example: -$1.00 I get ($1.00), the minus sign - disappears and I get parenthesis () instead.
Is there a way to get negative currency number in MaskedEditBox?

MaskedEditBox

answered on 09 Jul 2020

4 answers

830 views

Programmatically handle cell value changes

Hello

I have a grid that is bound to a view of my SQLdatabase (using Entity frame work)
In order to process a change in a cell value I can not use "context.savechanges" since the Binding is to a Query (view) and not a table
I have Search in two directions:
1. Discard the pending changes in the context and write a function to apply the cell change
but I have not found a way to discard the changes in the context

2. the other direction I have searched is to get the changes before the value changed event is fired and process it through my function
But here also I have not managed to make it work

I hope this is understandable ...

Thanks in advance for any suggestion

Pierre-Jean

GridView