Questions on UI for WinForms Forum

2 answers

149 views

[Solved] Localization of the GridView and loading saved layouts

Hi,

we have a localization problem. We have done the localization of the grid view. But now we have the following behaviour: The user starts the application the first language. As requested by the customer, the layout of the grid will be automatically saved. Now the user changes the language. The application starts and loads the layout, and everything is translated into the new language except the columns, because they are read from the layout file in the old language.

What is the right strategy to deal with this problem?

Thanks,
Michael

GridView

answered on 24 Jul 2013

1 answer

201 views

Trackbar Range

Hello,

I'm trying to use the RadTrackBar with Range mode, but I cannot access the values of the two ranges. I see in the documentation that I must use Ranges_CollectionChanged, but I don't understand how to access this function.

Do you have any example how to use two ranges.

Thank you,
Eduard

TrackBar

answered on 24 Jul 2013

4 answers

180 views

[Solved] Style of tabs in tabbed document

Hi,
please is there any way to reach result attached in the second picture programatically ? The tab is aligned to bottom.

1) I would need to get close button to the right of the tab name
2) I would need to get rid of close button at one tab.

First picture describes current state. Second picture shows my wish.

Thanks

Dock

answered on 24 Jul 2013

3 answers

331 views

DropDownList > ListElement > Font

RadControls for WinForms Q2 2010 / 2010.2.10.071

I am trying to set the Font for the list elements of a drop down list. I am able to set the font using the Properties window but the setting does not effect the list elements when the application is run. At run time, the application creates an array of RadListDataItem which is used as the data source. I have also tried setting the Font property of the individual RadListDataItems.

Setting the font for the DropDownList works correctly for the text box associated with the list.

Thanks,
Scott

DropDownList

answered on 23 Jul 2013

1 answer

200 views

Property Grid Combo Editor Changes the selected value when you double click to start edit

If a property grid combo editor is double clicked to start an edit the value will cycle through the available values.

Here is a really simple code example for this. If you just double click to start the edit on the MyEnum field you will notice that the value will keep changing every time you start the edit.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace PropertyGridTest

{

public partial class Form1 : Form

{

MyObject theObject = new MyObject();

public Form1()

{

InitializeComponent();

theObject.MyEnum = MyEnum.One;

theObject.Name = "test";

radPropertyGrid1.SelectedObject = theObject;

}

public enum MyEnum { One, Two, Three, Four, Five };

public class MyObject

{

public string Name { get; set; }

public MyEnum MyEnum { get; set; }

public MyObject() { }

}

PropertyGrid

answered on 23 Jul 2013

1 answer

116 views

AutoCompleteBox Scrollbar bug

Hello all,

I'm currently trialing both the Winform and Reporting suites and have been very impressed. I have however come across some unwanted behaviour which I think is probably a bug.

The problem comes when you populate the AutoCompleteBox and start a search returning enough results to need the scrollbar. When clicking and dragging the scroll bar to scroll - if the cursor is not positioned directly over the scrollbar at the time you release the mouseclick, the dropdown list is closed an item is added to the selection.

If I encounter a problem like the above after purchasing the Telerik tools how long does it take to normally find a solution? I'm basically looking for confirmation I wouldn't have to wait for a Quarterly update.

Many Thanks.

AutoCompleteBox

answered on 23 Jul 2013

1 answer

155 views

BUG: RadTextBox Shift+Tab

Hi,

When I have a few instances of the RadTextBox on a Form, and pressing Shift+Tab I have to press it twice to get the focus to the previous textbox. Pressing Tab only to get the focus to the next textbox works fine.

Best regards.

TextBox

answered on 23 Jul 2013

1 answer

99 views

Export Grid that has a group panel

I have a application that on a screen is a RadGridView that contains a GroupPanel. I would like to allow the users to export this grid to excel, but when I try to export I get an error converting the GroupPanel. I have tried to set the ShowGroupPanel to false during the export but that does not seem to help. IS there an export setting that would remove the GroupPanel?

GridView

answered on 22 Jul 2013

1 answer

239 views

Making menus to be on the window title bar

Hello,

Is is possible to make the menus to be on the window title bar?
Something like this:
http://cdn1.pcadvisor.co.uk/cmsdata/products/3291330/CyberLink_PhotoDirector_2011_1000.JPG

Thanks!

Menu

answered on 22 Jul 2013

1 answer

517 views

GridView throws Null Reference error when GridViewComboBox column is bound to a list of objects and the list changes

When GridView has a GridViewComboBoxColumn that is bound to a list of objects and that list changes a null reference error is thrown. This error did not get throw in the previous release (2013 Q1), it just started happening in (2013 Q2, specifically 2013.2.612.40).

Here is a code example using a list of Authors and a list of books. Basically the book object has a reference to the Author object. When the author list changes the book grid will throw a null reference error.

Here is the stack trace of the error:

at Telerik.WinControls.UI.GridViewComboBoxColumn.AddItem(Int32 i)
at Telerik.WinControls.UI.GridViewComboBoxColumn.currencyManager_ListChanged(Object sender, ListChangedEventArgs e)
at System.ComponentModel.ListChangedEventHandler.Invoke(Object sender, ListChangedEventArgs e)
at System.Windows.Forms.CurrencyManager.OnListChanged(ListChangedEventArgs e)
at System.Windows.Forms.CurrencyManager.List_ListChanged(Object sender, ListChangedEventArgs e)
at System.ComponentModel.BindingList`1.OnListChanged(ListChangedEventArgs e)
at System.ComponentModel.BindingList`1.Child_PropertyChanged(Object sender, PropertyChangedEventArgs e)
at GridTest.Author.NotifyPropertyChanged(String info) in c:\Users\SESA124669\Documents\Visual Studio 2012\Projects\GridTest\GridTest\Form1.cs:line 69
at GridTest.Author.set_Name(String value) in c:\Users\SESA124669\Documents\Visual Studio 2012\Projects\GridTest\GridTest\Form1.cs:line 97
at GridTest.Form1.button1_Click(Object sender, EventArgs e) in c:\Users\SESA124669\Documents\Visual Studio 2012\Projects\GridTest\GridTest\Form1.cs:line 52
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at GridTest.Program.Main() in c:\Users\SESA124669\Documents\Visual Studio 2012\Projects\GridTest\GridTest\Program.cs:line 19
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

Here is the code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using Telerik.WinControls.UI;

namespace GridTest

{

public partial class Form1 : Form

{

private BindingList<Author> AuthorData = new BindingList<Author>();

private BindingList<Book> BookData = new BindingList<Book>();

public Form1()

{

InitializeComponent();

radGridViewAuthors.DataSource = AuthorData;

radGridViewBooks.MasterTemplate.Columns.Clear();

GridViewComboBoxColumn colAuth = new GridViewComboBoxColumn("Author");

colAuth.HeaderText = "Author";

colAuth.Name = "Author";

colAuth.DataSource = AuthorData;

colAuth.ValueMember = "Id";

colAuth.DisplayMember = "Name";

colAuth.DisplayMemberSort = true;

radGridViewBooks.MasterTemplate.Columns.Add(colAuth);

GridViewTextBoxColumn colName = new GridViewTextBoxColumn("Name");

colName.HeaderText = "Name";

colName.Name = "Name";

colName.ReadOnly = true;

radGridViewBooks.MasterTemplate.Columns.Add(colName);

radGridViewBooks.MasterTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

radGridViewBooks.DataSource = BookData;

}

private void button1_Click(object sender, EventArgs e)

{

Author m = new Author();

m.Id = AuthorData.Count + 1;

AuthorData.Add(m);

m.Name = textBoxAuthorName.Text;

}

private void button2_Click(object sender, EventArgs e)

{

Book m = new Book(textBoxBookName.Text);

BookData.Add(m);

}

public class Author : INotifyPropertyChanged

{

public event PropertyChangedEventHandler PropertyChanged;

protected void NotifyPropertyChanged(String info)

{

if (PropertyChanged != null)

{

PropertyChanged(this, new PropertyChangedEventArgs(info));

}

private int id;

public int Id

{

get

{

return id;

}

set

{

id = value;

NotifyPropertyChanged("Id");

}

private string name;

public string Name

{

get

{

return name;

}

set

{

name = value;

NotifyPropertyChanged("Name");

}

public Author() { }

public Author(int id, string name)

{

Id = id;

Name = name;

}

public class Book : INotifyPropertyChanged

{

public event PropertyChangedEventHandler PropertyChanged;

protected void NotifyPropertyChanged(String info)

{

if (PropertyChanged != null)

{

PropertyChanged(this, new PropertyChangedEventArgs(info));

}

private string name;

public string Name

{

get

{

return name;

}

set

{

name = value;

NotifyPropertyChanged("Name");

}

private Author author;

public Author Author

{

get

{

return author;

}

set

{

author = value;

NotifyPropertyChanged("Author");

}

public Book() { }

public Book(string name)

{

Name = name;

}

GridView

answered on 22 Jul 2013