Questions on UI for WinForms Forum

21 answers

255 views

[Solved] Weird behavior during multiselection.

Hi

2010 Q2 SP2

I have grid with 500 rows and enabled multiselection.

I select first row and start multiselection (SHIFT and arrow down buttons). During selecting rows between 1 and 7 or 8 everything is fine (rows are selected – notification by orange background).

When I cross row 7 or 8 my one CPU core jumps to 50% and there is no notification that next rows are selected.

I have to stop multiselection to see orange background for selected rows.

I tested this for bound and unbound mode.

Is there any way to improve performance of this simple functionality?

I am more interested about unbound mode because in ma case I have variable number of columns.

Here you can read my simple source code:

public class MySample

{

public string Property1 { get; set; }

public string Property2 { get; set; }

public string Property3 { get; set; }

public string Property4 { get; set; }

public string Property5 { get; set; }

public string Property6 { get; set; }

public string Property7 { get; set; }

public string Property8 { get; set; }

public string Property9 { get; set; }

public string Property10 { get; set; }

}

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using Telerik.WinControls.UI;

namespace PerformanceIssue

{

public partial class Form1 : Form

{

List<MySample> _list;

public Form1()

{

InitializeComponent();

_list = this.GenerateList();

}

private void btnPopulateBound_Click(object sender, EventArgs e)

{

radGridViewBound.DataSource = _list;

foreach (GridViewDataColumn col in radGridViewBound.Columns)

{ col.Width = 100; }

radGridViewBound.MultiSelect = true;

radGridViewBound.Columns[0].IsPinned = true;

}

private void btnPopulateUnbound_Click(object sender, EventArgs e)

{

GridViewTextBoxColumn col = null;

GridViewRowInfo row = null;

for (int index = 1; index <= 10; index++)

{

col = new GridViewTextBoxColumn();

radGridViewUnbound.Columns.Add(col);

col.Width = 100;

}

foreach (MySample item in _list)

{

row = radGridViewUnbound.Rows.AddNew();

row.Cells[0].Value = item.Property1;

row.Cells[1].Value = item.Property2;

row.Cells[2].Value = item.Property3;

row.Cells[3].Value = item.Property4;

row.Cells[4].Value = item.Property5;

row.Cells[5].Value = item.Property6;

row.Cells[6].Value = item.Property7;

row.Cells[7].Value = item.Property8;

row.Cells[8].Value = item.Property9;

row.Cells[9].Value = item.Property10;

}

radGridViewUnbound.MultiSelect = true;

radGridViewUnbound.Columns[0].IsPinned = true;

}

private List<MySample> GenerateList()

{

List<MySample> list = new List<MySample>();

MySample item = null;

for (int index = 0; index < 500; index++)

{

item = new MySample()

{

Property1 = string.Format("Row: {0}, Col: {1}", index, 1),

Property2 = string.Format("Row: {0}, Col: {1}", index, 2),

Property3 = string.Format("Row: {0}, Col: {1}", index, 3),

Property4 = string.Format("Row: {0}, Col: {1}", index, 4),

Property5 = string.Format("Row: {0}, Col: {1}", index, 5),

Property6 = string.Format("Row: {0}, Col: {1}", index, 6),

Property7 = string.Format("Row: {0}, Col: {1}", index, 7),

Property8 = string.Format("Row: {0}, Col: {1}", index, 8),

Property9 = string.Format("Row: {0}, Col: {1}", index, 9),

Property10 = string.Format("Row: {0}, Col: {1}", index, 10)

};

list.Add(item);

}

return list;

}

Regards

GridView

answered on 22 Dec 2010

11 answers

437 views

CellFormatting and speed

Hi,

I have a grid that i have added a custom column containing a progress bar. This is done by adding the progressbar or updating the progressbar each time the CellFormatting event is fired. But it seems like this is done way to often?
In my opinion would i like to paint this the first time i load the row. Then I want to be able to update the progressbar in a row when the progressbar values have changed.
Now it updates this each time i click in a cell or change row. And it does not just happen to the row the i clicked in.. it fires for all visible rows in the grid.

How can i avoid this, how can i speed up the grid. NB the progressvalue function (my function) is slow as well, but fast enough if i was to set the progress value for a specific row.

Regards
Svein Thomas

GridView

answered on 22 Dec 2010

9 answers

247 views

[Solved] RadMenu is upside down

I placed RadMenu on my form.
I added 3 radMenuButtonItems
Set Orientation property of the menu to :Vertical.
Set RootElement TextOrientation to :Vertical
Now my menu is upside down

What should I do to rotate the menu on 180 degrees?
Thank you ,
Victoria.

Menu

answered on 22 Dec 2010

12 answers

416 views

[Solved] FlashWindow like functionality on a tabbed ToolWindow

In my app, I have a tool window that displays some statistics. I would like to implement something equivalent to FlashWindowEx in case some trigger values are hit. Alternatively, just changing the Colour of the ToolWindwo / Tab would be sufficient.

Regards
Erwin

Dock

answered on 22 Dec 2010

1 answer

98 views

multicolumnpopupform alignment

I have an heirarchial grid with a dropdownCombo column in. When opening the editor I use the CellBeginEdit and popupopening events to open a multicolumn list and generate more columns. The list itself is wider than the column!

Everyhting is working so far but...

I need the popupform itself aligned on the right side of the column. If have tried most things.(Bounds, Offset, Dock, PositionOffset) and nothing seeems to work.

Any help would be greatly appreciated.

/ Andrew

GridView

answered on 22 Dec 2010

7 answers

236 views

[Solved] Project Upgrade Utility 2010.3.10.1215

Good Day,

I've run into an error when using the Project Upgrade Utility, please see below error. I know why this error occured by I think you need to at least do some error handling. The reason why this happened is becuase all my project files are read-only. Thought I'd just let you know of the bug.

See the end of this message for details on invoking

just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************

System.UnauthorizedAccessException: Access to the path 'D:\Dev\CMS4\Executables\MyApp\MyApp.vbproj' is denied.

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)

at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)

at System.Xml.XmlTextWriter..ctor(String filename, Encoding encoding)

at System.Xml.XmlDocument.Save(String filename)

at Tools.ProjectConverter.ConvertVS2005ProjectFile(String projectPath, String directoryName, String fileName, XmlNode rootNode)

at Tools.ProjectConverter.Upgrade(String projectPath, String fileName)

at Tools.ApplicationUpgradeForm.Upgrade(DirectoryInfo directory)

at Tools.ApplicationUpgradeForm.radButton1_Click(Object sender, EventArgs e)

at System.Windows.Forms.Control.OnClick(EventArgs e)

at Telerik.WinControls.RadControl.OnClick(EventArgs e)

at Telerik.WinControls.UI.RadButton.ButtonElement_Click(Object sender, EventArgs e)

at Telerik.WinControls.RadItem.OnClick(EventArgs e)

at Telerik.WinControls.UI.RadButtonItem.OnClick(EventArgs e)

at Telerik.WinControls.RadItem.DoClick(EventArgs e)

at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)

at Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

at Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)

at Telerik.WinControls.RadElement.DoMouseUp(MouseEventArgs e)

at Telerik.WinControls.ComponentInputBehavior.OnMouseUp(MouseEventArgs e)

at Telerik.WinControls.RadControl.OnMouseUp(MouseEventArgs e)

at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

at System.Windows.Forms.Control.WndProc(Message& m)

at System.Windows.Forms.ScrollableControl.WndProc(Message& m)

at Telerik.WinControls.RadControl.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.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies **************

mscorlib

Assembly Version: 2.0.0.0

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll

----------------------------------------

Upgrade

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/Program%20Files/Telerik/RadControls%20for%20WinForms%20Q3%202010/Bin/Upgrade.exe

----------------------------------------

System.Windows.Forms

Assembly Version: 2.0.0.0

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

----------------------------------------

System

Assembly Version: 2.0.0.0

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll

----------------------------------------

System.Drawing

Assembly Version: 2.0.0.0

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

----------------------------------------

Telerik.WinControls.UI

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls.UI/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.UI.dll

----------------------------------------

Telerik.WinControls

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.dll

----------------------------------------

TelerikCommon

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/TelerikCommon/2010.3.10.1215__5bb2a467cbec794e/TelerikCommon.dll

----------------------------------------

System.Xml

Assembly Version: 2.0.0.0

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll

----------------------------------------

System.Configuration

Assembly Version: 2.0.0.0

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

----------------------------------------

ihwgdr62

Assembly Version: 2010.3.10.1215

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll

----------------------------------------

Telerik.WinControls.Themes.Office2007Black

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls.Themes.Office2007Black/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.Themes.Office2007Black.dll

----------------------------------------

xmlrd_oa

Assembly Version: 2010.3.10.1215

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll

----------------------------------------

Accessibility

Assembly Version: 2.0.0.0

Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll

----------------------------------------

Telerik.WinControls.RadChart

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls.RadChart/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.RadChart.dll

----------------------------------------

Telerik.WinControls.RadMarkupEditor

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls.RadMarkupEditor/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.RadMarkupEditor.dll

----------------------------------------

Telerik.WinControls.GridView

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls.GridView/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.GridView.dll

----------------------------------------

Telerik.WinControls.Scheduler

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls.Scheduler/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.Scheduler.dll

----------------------------------------

Telerik.WinControls.RadDock

Assembly Version: 2010.3.10.1215

Win32 Version: 2010.3.10.1215

CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Telerik.WinControls.RadDock/2010.3.10.1215__5bb2a467cbec794e/Telerik.WinControls.RadDock.dll

----------------------------------------

************** JIT Debugging **************

To enable just-in-time (JIT) debugging, the .config file for this

application or computer (machine.config) must have the

jitDebugging value set in the system.windows.forms section.

The application must also be compiled with debugging

enabled.

For example:

<configuration>

<system.windows.forms jitDebugging="true" />

</configuration>

When JIT debugging is enabled, any unhandled exception

will be sent to the JIT debugger registered on the computer

rather than be handled by this dialog box.

Tools - VSB, Control Spy, Shape Editor

answered on 22 Dec 2010

3 answers

246 views

[Solved] How to repair Telerik warnings

I have uninstalled Telerik from this PC. How can I repair the following compile warnings?

warning MSB3245: Could not resolve this reference. Could not locate the assembly

"TelerikCommon, ...

warning MSB3245: Could not resolve this reference. Could not locate the assembly "Telerik.WinControls, ...

General Discussions

answered on 22 Dec 2010

5 answers

244 views

How to add nested SummaryRowItem to self-referencing hierarchy model in the GridView/self-referencing WinForms demo sample?

Version 2010.3
In the GridView/self-referencing WinForms VB.NET demo sample,how to:
1.To get sum(Size) of "RadControls for Winforms", "RadControls for Silverlight", "RadControls for WPF" and "RadControls for ASP.NET AJAX", then write the Sum(Size) to Size cell of "Telerik RadControls".
2.To get sum(Size) of "bin" and "READEME.txt", then write the Sum(Size) to Size cell of "Visual Studio 2010".
3.To get sum(Size) of "Visual Studio 2010" and "Telerik RadControls" ,then write the Sum(Size) to Size cell of "Program Files".
4.And so on...
5.When any Size cell of a child changed,an event trigger and update it's parent /grantparent Size cell.

Best Regards.

GridView

answered on 22 Dec 2010

1 answer

131 views

[Solved] problems with column with different controls

Me.RadGridView1.ColumnCount = 2

Dim heterow0 As DataGridViewRow = New DataGridViewRow

Dim textBoxCell As DataGridViewTextBoxCell = New DataGridViewTextBoxCell

textBoxCell.Value = "Turn Over Based On"

Dim comboCell As DataGridViewComboBoxCell = New DataGridViewComboBoxCell()

comboCell.Items.Add("Chip Transaction")

comboCell.Items.Add("Win/Loss")

Me.RadGridView1.ColumnCount = 2

Dim heterow0 As DataGridViewRow = New DataGridViewRow

Dim textBoxCell As DataGridViewTextBoxCell = New DataGridViewTextBoxCell

textBoxCell.Value = "Turn Over Based On"

Dim comboCell As DataGridViewComboBoxCell = New DataGridViewComboBoxCell()

comboCell.Items.Add("Chip Transaction")

comboCell.Items.Add("Win/Loss")

Help, I have tried in various ways instead with DataGridView if I can make.

Me

.RadGridView1.ColumnCount = 2

Me.DataGridView1.ColumnCount = 2

Dim heterow0 As DataGridViewRow = New DataGridViewRow

Dim textBoxCell As DataGridViewTextBoxCell = New DataGridViewTextBoxCell

textBoxCell.Value = "Turn Over Based On"

Dim comboCell As DataGridViewComboBoxCell = New DataGridViewComboBoxCell()

comboCell.Items.Add("Chip Transaction")

comboCell.Items.Add("Win/Loss")

Dim botonCell As DataGridViewButtonCell = New DataGridViewButtonCell

heterow0.Cells.Add(textBoxCell)

heterow0.Cells.Add(comboCell)

Me

.RadGridView1.Rows.Add(heterow0)

Me.DataGridView1.Rows.Add(heterow0)

That is the form
[IMG]http://i54.tinypic.com/535o1t.jpg[/IMG]
http://es.tinypic.com/r/535o1t/7

GridView

answered on 22 Dec 2010

1 answer

179 views

[Solved] Tab key press in Grid View Drop Down Causes Crash

I have a GridView (v. 2010.2.10.806) with a text box column, a DateTime column, a DropDownList column and a check box column set at design time. The rows are constructed manually in a custom method that constructs rows of GridViewRowInfo objects based on a collection of custom objects. This all works very well. In my testing however, I have found that if the drop down list is extended, and I press the TAB key, the drop down is left blank and focus is moved to the next cell, and the application crashes on the next TAB key press. If other keys are pressed, the app seems hung and nothing happens. I have tried to work around this by capturing and supressing the TAB key press (in lieu of a better solution), but the GridView key down event does not seem to fire when the TAB key is pressed. I have also tried to implement the solution at http://www.telerik.com/community/forums/winforms/gridview/cell-keydown-event.aspx but had no success. Any input you may have is appreciated, Thanks.

GridView

answered on 22 Dec 2010