Questions on UI for WinForms Forum

1 answer

111 views

Change culture in RadChartView at runtime

How I can change the culture of RadChartView at runtime? tooltip write "Category" and "Value". I need change Culture for Portuguese, I'm using Visual Basic.Net 2017 and Telerik 2018 R2.

Regards.

ChartView

answered on 20 Dec 2018

4 answers

249 views

Excel add in high DPI problem

Hi,

Changing the size of a form at runtime somehow messes up the control size / layout if DPI / scaling ist at >100%.

This only happens if the form is loaded inside an Excel add in, if the same form is loaded in a normal WinForms project everything is fine.

Attached is a sample Excel add in project.

Kind regards,

Christian

Form

answered on 20 Dec 2018

5 answers

145 views

Move Search above Header

How can I move Search above columns header?

GridView

answered on 20 Dec 2018

1 answer

344 views

Groupbox without text theme issue

Hello,

Some of my groupbox have no header text. I've found out a little spot in place of header in Office2007 theme even there is no header text.

In order to figure out by myself, I've compared most of telerik themes. Please see what I've found in the attach picture.

How can I hide the little spot (or the little blank in some theme)?

Is this normal? Any idea?

Thank you by advance.

GroupBox

answered on 20 Dec 2018

2 answers

415 views

RadLabel.MaximumSize on High DPI

Hello.
I try to display long description text with nice word wrapping using RadLabel.
To do that I set AutoSize=true but control Width of RadLabel setting MaximumSize.
I set the maximum size and recalculate it every time Form's size changes.

Everything works fine until you change the DPI settings in the system.
When you do this and change MaximumSize property at runtime my value will be multiplied by the scaling value.
And since I use form size (which is already scaled) I got doubled scale.
For example if I set scaling 150% my value be multiplied by 1.5.

Below I gave examples of my code and screenshots from different DPI.

100% https://clip2net.com/s/3YxZaSZ
150% https://clip2net.com/s/3YxZom6
200% https://clip2net.com/s/3YxZees

I use Telerik 2018.3.1016.20 with .Net 3.5
I very much rely on your help and advice.

using System;

using System.Drawing;

using Telerik.WinControls.UI;

namespace DesignExamples.BugsForTelerik

{

public class Form1 : RadForm

{

private RadLabel radLabel1;

private RadLabel radLabel2;

public Form1()

{

InitializeComponent();

}

private void InitializeComponent()

{

System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));

this.radLabel1 = new Telerik.WinControls.UI.RadLabel();

this.radLabel2 = new Telerik.WinControls.UI.RadLabel();

((System.ComponentModel.ISupportInitialize)(this.radLabel1)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.radLabel2)).BeginInit();

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

this.SuspendLayout();

//

// radLabel1

//

this.radLabel1.Dock = System.Windows.Forms.DockStyle.Top;

this.radLabel1.Location = new System.Drawing.Point(0, 0);

this.radLabel1.Name = "radLabel1";

this.radLabel1.Size = new System.Drawing.Size(2054, 18);

this.radLabel1.TabIndex = 0;

this.radLabel1.Text = resources.GetString("radLabel1.Text");

//

// radLabel2

//

this.radLabel2.Dock = System.Windows.Forms.DockStyle.Top;

this.radLabel2.Location = new System.Drawing.Point(0, 18);

this.radLabel2.Name = "radLabel2";

this.radLabel2.Size = new System.Drawing.Size(81, 18);

this.radLabel2.TabIndex = 1;

this.radLabel2.Text = "MaximumSize: ";

//

// Form1

//

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

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

this.ClientSize = new System.Drawing.Size(504, 270);

this.Controls.Add(this.radLabel2);

this.Controls.Add(this.radLabel1);

this.Name = "Form1";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "Form1";

this.Resize += new System.EventHandler(this.OnResize);

((System.ComponentModel.ISupportInitialize)(this.radLabel1)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.radLabel2)).EndInit();

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

this.ResumeLayout(false);

this.PerformLayout();

}

private void OnResize(object sender, EventArgs e)

{

var maximumSize = new Size(Width - radLabel1.Margin.Horizontal, 0);

radLabel1.MaximumSize = maximumSize;

radLabel2.Text = $@"maximumSize: {maximumSize}

radLabel1.MaximumSize: {radLabel1.MaximumSize}";

}

Label

answered on 19 Dec 2018

4 answers

132 views

Highlight border of selected thumbnail

Is there a way to highlight the border of the currently selected thumbnail on the pdf viewer?

I simply want my users to know which thumbnail they've clicked on (which page they are on) since a lot of the documents they view look the same from page to page.

Thanks.

PdfViewer and PdfViewerNavigator

answered on 19 Dec 2018

3 answers

150 views

Resize dropdown arrow Touch Screen App

I am using the rad multi combox box and it work rather well on touch I just want to make the blue area wider so it looks like they touch it with their thumb its very small at present and easy for them to miss.

MultiColumn ComboBox

answered on 19 Dec 2018

0 answers

152 views

RadDropDownButton; Button element

Hello,

There are images with background themes.
I need to implement a dropdownlist with images only.
All images have the same size 150x50, so when I press the down button it should show the full item list. Those may be elements of an imageList.
I tried Telerik RadDropBownButton, and RadButtons as items.

The attached picture is what I have now. As I can see the left is the position and place for the image, and there is still small place for text. There is no text, only image. How to hide the text place, to keep only image?

Buttons, RadioButton, CheckBox, etc

asked on 19 Dec 2018

2 answers

89 views

BackgroundColor remain selection BackgroundColor

why the background-color remains the same although another line was selected.
this only applies if foreColor is changed.

if (Convert.ToDateTime(cell.Value.ToString()) != Convert.ToDateTime(e.Row.Cells[ColumnTitle.GridOperation.Liefertermin].Value.ToString())) {
cell.NumberOfColors = 1;
cell.DrawFill = true;
cell.ForeColor = ColorDeltaLieferterminAbteilungstermin.FColor;
cell.Font = new Font(DefaultFont, FontStyle.Bold);
} else {
cell.Image = null;
cell.DrawFill = false;
cell.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local);
cell.ResetValue(LightVisualElement.ForeColorProperty, ValueResetFlags.Local);
cell.ResetValue(LightVisualElement.NumberOfColorsProperty, ValueResetFlags.Local);
cell.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local);
}

thanks andre

GridView

answered on 18 Dec 2018

2 answers

86 views

GridView with AutoCompleteEditor: Limiting token to a single value

I've done some searching but was unable to find anything to help my specific case. I am using an AutoCompleteEditor class to enable drop down textboxes on my grid view, but I want to limit the token to 1 min and max. How can I do this? You may ask why I am using this instead of a ComboBoxColumn. The answer is: I have been instructed to not show any drop down arrows.

Here is the class that I've taken from forums:

class AutoCompleteEditor : RadTextBoxControlEditor
    {
        protected override Telerik.WinControls.RadElement CreateEditorElement()
        {
            return new RadAutoCompleteBoxElement();
        }

        public override void OnKeyDown(System.Windows.Forms.KeyEventArgs e)
        {
            RadAutoCompleteBoxElement element = this.EditorElement as RadAutoCompleteBoxElement;

            if (element.IsAutoCompleteDropDownOpen)
            {
                return;
            }

            base.OnKeyDown(e);
        }
    }

I am trying to validate data entered into the cell, but it looks like end users are able to select multiple values. I want to completely disable this ability and allow only a single value to be selected.

It would be much simpler to use a regular ComboBoxColumn, but I am unable to convince decision makers other wise.

GridView

answered on 18 Dec 2018