Questions on UI for WinForms Forum

1 answer

190 views

This is for a tablet and I'm sizing things for fat fingers or that wand. What property do I reference in order to make the drop down button wider (DropDownList)?

(I'm open to a suggestion for a better approach - like a different control - for a touch screen where the user may need to select from a small list of choices.)

Thank you,

Gary

DropDownList

answered on 28 Feb 2017

13 answers

332 views

Filtering has slowed down...

Hi Telerik

We have been using RadGridView for ages. Some of our customers have approx 100.000 rows of customers displayed in the grid. We have always gotten good remarks because of the fast filtering in the grids (isLike filtering on Textboxcolumns), however, as of lately it has gotten much slower, even though we have not made changes in code.

Have you made any changes in grid, that could cause it to slow down?

Should it not be lightning fast with 100.000 rows?

I have tried implementing a delayed filtering, so that if the user types "Test" fast, it will only filter once. However, it is giving me a lot of headache - have you seen any examples of people accomplishing this?

GridView

answered on 28 Feb 2017

2 answers

107 views

Oval gauge

Hi.

Is it possible to change the circle gauge yo make it ovaladed?

General Discussions

answered on 27 Feb 2017

6 answers

191 views

Show only the current row

In this application we are running around the warehouse and picking items for an order. The user gets to select any row in the gridview of items either by clicking that row or entering a search field and the program will find a row from that..

What I want to do is this:

1. When a row is selected, show only that row and show a panel where the user takes an action.

2. When the user completes the action for that row, restore the gridview to showing all of the rows and make that panel disappear.

How I think of this is:

A split container with two panels (and 0 for the splitter width). One panel contains the gridview. The other panel contains the controls for the user to execute the action for the selected gridview row.
When a row is selected, that panel and gridview will decrease their size to contain only the header row and the selected row. The other panel will expand into the vacated space in the split container. Reverse this when the action for that row is completed. (That other panel won't be visible.)
When the row is selected, no scrolling, no touching, nothing. It's there to show you what you have selected to work on. That's all.

I'm doing fine with collapsing the panels in the split container. I'd like help with

Either setting the current row as the first visible row or making the current row the only visible row (other suggestions are welcome).
Hiding the scroll bar and other things to keep the user out of the gridview when a row has been selected.
Calculating the height to set the gridview so that it is tall enough to show the header and one row (I think I've been there before).

Thank you.

GridView

answered on 27 Feb 2017

1 answer

311 views

CommandBarDropDownButton items show up in a wrong position

Hi Telerik Team,

i begin to developing a telerik UI by using c#. i added a CommandBarDropDownButton for language selection (English & Arabic). When i set currentculture as arabic and RightToLeft to Yes, CommandBarDropDownButton items, are onthe right side of screen, show up shifted position, in a wrong position. i attached the screenshots for clarifying problem.

Here is my code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Globalization;

using System.Threading;

using System.Windows.Forms;

using Telerik.WinControls;

using Telerik.WinControls.UI;

namespace TelerikWinFormsApp2

{

public partial class Form1 : RadForm

{

private static RightToLeft right2Left = RightToLeft.No;

private readonly object _locker = new object();

public static CultureInfo CurrentCulture { get; set; }

private RightToLeft Right2Left

{

get { return right2Left; }

set {

if (!(right2Left == value))

{

lock(_locker){

right2Left = value;

CultureChangeFunc();

}

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

InitializeToolbar();

}

private void InitializeToolbar()

{

bseLayout.Grip.Visibility = ElementVisibility.Collapsed;

bseActions1.Grip.Visibility = ElementVisibility.Collapsed;

bseLanguage.Grip.Visibility = ElementVisibility.Collapsed;

bseLanguage.DesiredLocation = new PointF(10000, 0);

this.commandBarDropDownButton2.Image = Image.FromFile("icons\\32x32\\icon_list.png");

this.commandBarDropDownButton3.Image = Image.FromFile("icons\\32x32\\icon_settings.png");

this.commandBarDropDownButton4.Image = Image.FromFile("icons\\32x32\\icon_lang.png");

this.commandBarButton7.Image = Image.FromFile("icons\\32x32\\icon_info.png");

this.commandBarButton4.Image = Image.FromFile("icons\\32x32\\icon_help.png");

}

private void rmiLanguage_Click(object sender, EventArgs e)

{

var selectedItem = (RadMenuItem)sender;

if (selectedItem.Tag == null)

return;

try

{

if (selectedItem.Tag.Equals("rmiEnglish"))

{

CurrentCulture = new CultureInfo("en-US");

Right2Left = RightToLeft.No;

}

else if (selectedItem.Tag.Equals("rmiArabic"))

{

CurrentCulture = new CultureInfo("ar-SA");

Right2Left = RightToLeft.Yes;

}

else

{

return;

}

catch (Exception ex)

{

MessageBox.Show("Change Language Error : "+ ex.Message.ToString());

}

private void CultureChangeFunc()

{

try

{

Thread.CurrentThread.CurrentCulture = CurrentCulture;

Thread.CurrentThread.CurrentUICulture = CurrentCulture;

RightToLeft = Thread.CurrentThread.CurrentCulture.TextInfo.IsRightToLeft ? RightToLeft.Yes : RightToLeft.No;

}

catch (Exception ex)

{

MessageBox.Show("Change Language Error : ", ex.Message.ToString());

}

Best Regards..

CommandBar

answered on 27 Feb 2017

2 answers

221 views

Filter with DropDown

Hi,

I would like to add a Dropdown in one of my Filtercells. Every entry in the Column should be displayed in this dropdown so the user can choose just elements which are already in the column of the grid. Is there a property to achieve this behaviour or do I have to create a Customcontrol to handle this?

Could you please send me a simple example how to solve this task?

Sincerely,

Dominik Zöbl

GridView

answered on 27 Feb 2017

1 answer

153 views

RadControl.Font Override

here is the scenario..

I am trying to create some wrapper classes for controls that display text such as labels, etc. What I am seeing is that I am copy and pasting the same font override function for each control.

Is there a recommended way of overriding the RadControl.Font and utilize that? The problem, is the wrapper class can only have a single base class.. MyRadLabel : RadLabel

any pointers would be nice. I hope I am just missing something small that I am not thinking of..

General Discussions

answered on 24 Feb 2017

2 answers

263 views

How to center image and text of RadMenuItem when AutoSize is false?

How can I center image and text of RadMenuItem when AutoSize is false? See attached screenshot.

Thanks..

Menu

answered on 24 Feb 2017

2 answers

93 views

Replacing images from document

Hello,

I am looking for a way to find all the images from a document and run them through a compressing do reduce the document size.

I found a way to find all images and I have the code to compress them but I am not sure how to replace the image after I find them.

foreach (Section section in this.radRichTextEditor1.Document.Sections)

{

foreach (Block block in section.Blocks)

{

Paragraph p = block as Paragraph;

if (p != null)

{

foreach (Inline inlineElement in p.Inlines)

{

ImageInline image = inlineElement as ImageInline;

if (image != null)

{

Telerik.WinControls.RichTextEditor.UI.BitmapSource bitSource;

bitSource = image.ImageSource;

}

Regards, Dan

RichTextEditor

answered on 23 Feb 2017

1 answer

157 views

RadLabel <html><color=xxxx>

I'm not using themes in my project yet but I would like this to work as if I were. I'm setting up some RadLabels to contain both the name of the piece of information and the value of it. I.E. RadLabel1.Text = string.Format("<html><color=Navy>Item Number: <color=Black>{0}", theItemNumber);

How can I get the color name for the text at the top of the RadForm (or any control's forecolor that is used to display text)?

Also, where I'm setting the color back to the default for the label, is Black the default or is there some place to find that color as well?

Thank you,

Gary

Label