Questions on UI for WinForms Forum

4 answers

151 views

[Solved] Get a reference to the cell in CellValidated?

Is there a way to obtain the cell in the CellValidated event?

I want to check if cell.ContainsErrors, but I don't seem to be able to get the Cell.

grid1.rows(e.rowIndex).Cells(e.columnIndex) provides the CellInfo, not the cell itself.

Any tips would be appreciated.

Thanks!

GridView

answered on 21 Oct 2010

13 answers

320 views

[Solved] Change backcolor of a cell when current row is changing

I have a scenario, where a user is editing a row. Based on whether this row is in a modified state or not, I want to paint the 5th cell ( i.e. 'Modified' column) with a skyblue back color when the current row is changing. I tried using a condition object in form load event, but it failed to apply when I leave the current row after changing it. When current row is changing, I am determining whether the row was modified and if yes , then I am setting the 'Modified' column to 'Yes', and I am having no problems with this part of the logic.
I am using Q1 2008 SP1 version.

My code for condition object that I used is:

ConditionalFormattingObject obj =

new ConditionalFormattingObject("MyCondition", ConditionTypes.Equal, "Yes", "",true);

obj.CellBackColor = Color.SkyBlue;

obj.CellForeColor = Color.Red;

obj.TextAlignment = ContentAlignment.MiddleRight;

attributesRadGridView.Columns["Modified"].ConditionalFormattingObjectList.Add(obj);

How can I paint a cell in above scenario or paint the whole row? Either will do.

Thanks
Sunil

GridView

answered on 20 Oct 2010

4 answers

338 views

Hierarchical grid view - Index was out of range grid exception.

Hi,

When I create a simple hierarchical grid view (example code snippet (4) attached below) I'm getting an exception (2) with a stack trace (3) you can find below. t occurs always when there are 3 or more hierarchy levels. Below I'm describing also reproducibility steps.

Any patch or feedback if I''m doing anything wrong would be appreciated.

Regards.

Reproducibility Steps:

1. Use code snippet

2. Expand all nodes

3. Collapse first root node

1 Exception

ArgumentOutOfRangeException

{"Index was out of range. Must be non-negative and less than the size of the collection.\r\nParameter name: index"}

2 Stack trace

01.at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)

02.at System.ThrowHelper.ThrowArgumentOutOfRangeException()

03.at System.Collections.Generic.List`1.get_Item(Int32 index)

04.at Telerik.WinControls.UI.PriorityWeakReferenceList.<ReverseForEach>d__0.MoveNext()

05.

at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(GridViewEvent gridEvent, PriorityWeakReferenceList list, GridEventProcessMode processMode)

06.at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessEvent(GridViewEvent gridEvent)

07.at Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(GridViewEvent gridEvent)

08.at Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents()

09.at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewEvent gridEvent)

10.

at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewTemplate template, GridViewEvent eventData, Boolean postUI)

11.

at Telerik.WinControls.UI.GridViewRowInfo.DispatchEvent(Int32 id, GridEventType type, GridEventDispatchMode dispatchMode, Object originator, Object[] arguments)

12.at Telerik.WinControls.UI.GridViewRowInfo.OnPropertyChanged(PropertyChangedEventArgs args)

13.at Telerik.WinControls.UI.GridViewDataRowInfo.OnPropertyChanged(PropertyChangedEventArgs e)

14.at Telerik.WinControls.UI.GridViewHierarchyRowInfo.OnPropertyChanged(PropertyChangedEventArgs e)

15.at Telerik.WinControls.UI.GridViewRowInfo.SetBooleanProperty(String propertyName, Int32 propertyKey, Boolean value)

16.at Telerik.WinControls.UI.GridViewRowInfo.set_IsExpanded(Boolean value)

17.

at Telerik.WinControls.UI.GridGroupExpanderCellElement.expander_RadPropertyChanged(Object sender, RadPropertyChangedEventArgs e)

18.at Telerik.WinControls.RadPropertyChangedEventHandler.Invoke(Object sender, RadPropertyChangedEventArgs e)

19.at Telerik.WinControls.RadObject.OnPropertyChanged(RadPropertyChangedEventArgs e)

20.at Telerik.WinControls.RadElement.OnPropertyChanged(RadPropertyChangedEventArgs e)

21.at Telerik.WinControls.VisualElement.OnPropertyChanged(RadPropertyChangedEventArgs e)

22.at Telerik.WinControls.RadComponentElement.OnPropertyChanged(RadPropertyChangedEventArgs e)

23.at Telerik.WinControls.RadItem.OnPropertyChanged(RadPropertyChangedEventArgs e)

24.at Telerik.WinControls.UI.GridExpanderItem.OnPropertyChanged(RadPropertyChangedEventArgs e)

25.

at Telerik.WinControls.RadObject.RaisePropertyNotifications(RadPropertyValue propVal, Object oldValue, Object newValue, ValueSource oldSource)

26.

at Telerik.WinControls.RadObject.SetValueCore(RadPropertyValue propVal, Object propModifier, Object newValue, ValueSource source)

27.

at Telerik.WinControls.RadElement.SetValueCore(RadPropertyValue propVal, Object propModifier, Object newValue, ValueSource source)

28.at Telerik.WinControls.RadObject.SetValue(RadProperty property, Object value)

29.at Telerik.WinControls.UI.GridExpanderItem.set_Expanded(Boolean value)

30.at Telerik.WinControls.UI.GridExpanderItem.OnMouseUp(MouseEventArgs e)

31.at Telerik.WinControls.RadElement.OnCLREventsRise(RoutedEventArgs args)

32.at Telerik.WinControls.RadElement.OnBubbleEvent(RadElement sender, RoutedEventArgs args)

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

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

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

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

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

38.at Telerik.WinControls.RadElement.CallDoMouseUp(MouseEventArgs e)

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

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

41.at Telerik.WinControls.UI.RadGridView.OnMouseUp(MouseEventArgs e)

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

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

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

45.at Telerik.WinControls.RadControl.WndProc(Message& m)

46.at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

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

48.at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

49.at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

50.

at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)

51.at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

52.at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

53.at System.Windows.Forms.Application.Run(Form mainForm)

54.at TelerikGrid.Program.Main() in C:\Users\mbandrowski\Desktop\proof\TelerikGrid\TelerikGrid\Program.cs:line 18

55.at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)

56.at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

57.at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

58.at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

59.at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

60.at System.Threading.ThreadHelper.ThreadStart()

3. Code snippet:

001.using System;

002.using System.Collections.Generic;

003.using System.ComponentModel;

004.using System.Data;

005.using System.Drawing;

006.using System.Linq;

007.using System.Text;

008.using System.Windows.Forms;

009.using Telerik.WinControls.UI;

010.

011.namespace TelerikGrid

012.{

013.

014. public class a

015. {

016. public int IdA

017. {

018. get;

019. set;

020. }

021.

022. public string strPropertrya

023. {

024. get;

025. set;

026. }

027. }

028.

029. public class b

030. {

031. public int IdA

032. {

033. get;

034. set;

035. }

036.

037. public int IdB

038. {

039. get;

040. set;

041. }

042.

043. public string strPropertryb

044. {

045. get;

046. set;

047. }

048. }

049.

050. public class c

051. {

052. public int IdB

053. {

054. get;

055. set;

056. }

057.

058. public int IdC

059. {

060. get;

061. set;

062. }

063.

064. public string strPropertryc

065. {

066. get;

067. set;

068. }

069. }

070.

071. public partial class Form1 : Form

072. {

073. BindingList<a> aList = new BindingList<a>();

074. BindingList<b> bList = new BindingList<b>();

075. BindingList<c> cList = new BindingList<c>();

076.

077. public Form1()

078. {

079. InitializeComponent();

080.

081. aList.Add(new a() { IdA = 1, strPropertrya = "asd" });

082. aList.Add(new a() { IdA = 2, strPropertrya = "fsds" });

083.

084. bList.Add(new b() { IdA = 1, IdB = 1, strPropertryb = "xcvxbd" });

085. bList.Add(new b() { IdA = 1, IdB = 2, strPropertryb = "cbvasd" });

086. bList.Add(new b() { IdA = 2, IdB = 3, strPropertryb = "x54xsd" });

087. bList.Add(new b() { IdA = 2, IdB = 4, strPropertryb = "45fasd" });

088.

089. cList.Add(new c() { IdC = 1, IdB = 1, strPropertryc = "12435d" });

090. cList.Add(new c() { IdC = 2, IdB = 1, strPropertryc = "c34asd" });

091. cList.Add(new c() { IdC = 3, IdB = 2, strPropertryc = "x234sd" });

092. cList.Add(new c() { IdC = 4, IdB = 2, strPropertryc = "234asd" });

093. cList.Add(new c() { IdC = 5, IdB = 3, strPropertryc = "x234bd" });

094. cList.Add(new c() { IdC = 6, IdB = 3, strPropertryc = "5243sd" });

095. cList.Add(new c() { IdC = 7, IdB = 4, strPropertryc = "x34234" });

096. cList.Add(new c() { IdC = 8, IdB = 4, strPropertryc = "45324d" });

097.

098. abindingSource.DataSource = aList;

099. bbindingSource.DataSource = bList;

100. cbindingSource.DataSource = cList;

101.

102. GridViewTemplate btempate = new GridViewTemplate();

103. btempate.DataSource = bbindingSource;

104. radGridView1.MasterTemplate.Templates.Add(btempate);

105.

106. GridViewRelation brelation = new GridViewRelation(radGridView1.MasterTemplate);

107. brelation.ChildTemplate = btempate;

108. brelation.ChildColumnNames.Add("IdA");

109. brelation.ParentColumnNames.Add("IdA");

110. radGridView1.Relations.Add(brelation);

111.

112.

113. GridViewTemplate ctemplate = new GridViewTemplate();

114. ctemplate.DataSource = cbindingSource;

115. btempate.Templates.Add(ctemplate);

116.

117. GridViewRelation crelation = new GridViewRelation(btempate);

118. crelation.ChildTemplate = ctemplate;

119. crelation.ChildColumnNames.Add("IdB");

120. crelation.ParentColumnNames.Add("IdB");

121. radGridView1.Relations.Add(crelation);

122.

123.

124. abindingSource.ResetBindings(true);

125. bbindingSource.ResetBindings(true);

126. cbindingSource.ResetBindings(true);

127.

128.

129. radGridView1.EnableGrouping = true;

130. radGridView1.MasterTemplate.EnableFiltering = true;

131. radGridView1.MasterTemplate.ShowFilteringRow = true;

132. radGridView1.ReadOnly = true;

133. radGridView1.SelectionMode = GridViewSelectionMode.FullRowSelect;

134.

135.

136. radGridView1.MasterTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.None;

137. radGridView1.MasterTemplate.Templates[0].AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.None;

138. radGridView1.MasterTemplate.EnableAlternatingRowColor = true;

139. radGridView1.MasterTemplate.Templates[0].EnableAlternatingRowColor = true;

140. }

141.

142.

143. /// <summary>

144. /// Required designer variable.

145. /// </summary>

146. private System.ComponentModel.IContainer components = null;

147.

148. /// <summary>

149. /// Clean up any resources being used.

150. /// </summary>

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

152. protected override void Dispose(bool disposing)

153. {

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

155. {

156. components.Dispose();

157. }

158. base.Dispose(disposing);

159. }

160.

161. #region Windows Form Designer generated code

162.

163. /// <summary>

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

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

166. /// </summary>

167. private void InitializeComponent()

168. {

169. this.components = new System.ComponentModel.Container();

170. Telerik.WinControls.UI.GridViewDecimalColumn gridViewDecimalColumn27 = new Telerik.WinControls.UI.GridViewDecimalColumn();

171. Telerik.WinControls.UI.GridViewTextBoxColumn gridViewTextBoxColumn27 = new Telerik.WinControls.UI.GridViewTextBoxColumn();

172. this.radGridView1 = new Telerik.WinControls.UI.RadGridView();

173. this.abindingSource = new System.Windows.Forms.BindingSource(this.components);

174. this.bbindingSource = new System.Windows.Forms.BindingSource(this.components);

175. this.cbindingSource = new System.Windows.Forms.BindingSource(this.components);

176. ((System.ComponentModel.ISupportInitialize)(this.radGridView1)).BeginInit();

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

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

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

180. this.SuspendLayout();

181. //

182. // radGridView1

183. //

184. this.radGridView1.Dock = System.Windows.Forms.DockStyle.Fill;

185. this.radGridView1.Location = new System.Drawing.Point(0, 0);

186. //

187. // radGridView1

188. //

189. gridViewDecimalColumn27.DataType = typeof(int);

190. gridViewDecimalColumn27.FieldName = "IdA";

191. gridViewDecimalColumn27.HeaderText = "IdA";

192. gridViewDecimalColumn27.IsAutoGenerated = true;

193. gridViewDecimalColumn27.Name = "IdA";

194. gridViewDecimalColumn27.TextAlignment = System.Drawing.ContentAlignment.MiddleRight;

195. gridViewTextBoxColumn27.FieldName = "strPropertrya";

196. gridViewTextBoxColumn27.HeaderText = "strPropertrya";

197. gridViewTextBoxColumn27.IsAutoGenerated = true;

198. gridViewTextBoxColumn27.Name = "strPropertrya";

199. this.radGridView1.MasterTemplate.Columns.AddRange(new Telerik.WinControls.UI.GridViewDataColumn[] {

200. gridViewDecimalColumn27,

201. gridViewTextBoxColumn27});

202. this.radGridView1.MasterTemplate.DataSource = this.abindingSource;

203. this.radGridView1.Name = "radGridView1";

204. this.radGridView1.Padding = new System.Windows.Forms.Padding(0, 0, 0, 1);

205. this.radGridView1.Size = new System.Drawing.Size(478, 415);

206. this.radGridView1.TabIndex = 0;

207. this.radGridView1.Text = "radGridView1";

208. //

209. // abindingSource

210. //

211. this.abindingSource.DataSource = typeof(a);

212. //

213. // bbindingSource

214. //

215. this.bbindingSource.DataSource = typeof(b);

216. //

217. // cbindingSource

218. //

219. this.cbindingSource.DataSource = typeof(c);

220. //

221. // Form1

222. //

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

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

225. this.ClientSize = new System.Drawing.Size(478, 415);

226. this.Controls.Add(this.radGridView1);

227. this.Name = "Form1";

228. this.Text = "Form1";

229. ((System.ComponentModel.ISupportInitialize)(this.radGridView1)).EndInit();

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

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

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

233. this.ResumeLayout(false);

234.

235. }

236.

237. #endregion

238.

239. private Telerik.WinControls.UI.RadGridView radGridView1;

240. private System.Windows.Forms.BindingSource abindingSource;

241. private System.Windows.Forms.BindingSource bbindingSource;

242. private System.Windows.Forms.BindingSource cbindingSource;

243. }

244.}

GridView

answered on 20 Oct 2010

2 answers

185 views

How to Override List Box Items Theme Properties

Hi~3cbr /~3e I am using Telerik Rad Q2 Controls for Winforms. I have following two questions and I have searched a lot but could not found.~3cbr /~3e ~3cbr /~3e ~3col~3e ~3cli~3e~26nbsp~3bHow I can assign different ForeColors for list Box Items if ListBox have a theme.~3c/li~3e ~3cli~3e~26nbsp~3bHow to Remove the bottom scroll bar so that if the contents are large then display on multiple lines ~28Autoscroll property of listbox is false. but till bottom scroll bar automatically displays~29 ~26nbsp~3b~26nbsp~3b~3c/li~3e ~3c/ol~3e Please response early. Thanks in advance~26nbsp~3b Ghulam Haider

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 20 Oct 2010

7 answers

216 views

[Solved] Header position for hidden panel

as you can see the attachment
i want the position of hidden panel "Error" to become at the bottom of the screen ???
Could you please help me ???

Dock

answered on 20 Oct 2010

6 answers

378 views

Select New Row

Hello

How can I realize this behavior? The user clicks to the first cell of the new row at the top of the grid. He fills in a value, then he presses the tab key. The cursor goes through the cells. When the user presses tab in the last cell, the row should be added and the cursor should go to the first cell of a new row.
This does not work for me: http://www.telerik.com/community/forums/winforms/gridview/automatically-add-new-row.aspx

Thank you
wima

GridView

answered on 20 Oct 2010

2 answers

146 views

FilterExpressionChangedEventArgs

I want to Know if the FilterExpressionChangedEventArgs Class is exist in Telerik 2009 or not

GridView

answered on 20 Oct 2010

5 answers

190 views

Right to left support

Rad Menu don't support right to left...!
we need right to left support menu,in Iran ,with Farsi language.

Menu

answered on 20 Oct 2010

18 answers

537 views

[Solved] Problem while updating the Cell from Item Template of Herarchical Grid.

Hello,

I am using Radgrid.

i am adding two columns in gridview master template

With gridViewChecklistItems.MasterTemplate.Columns

.Add(colChkListItemGroupID)

.Add(colChkListtemGroupName)

End With

i have added on template in Master template and adding some columns in it.

gridViewChecklistItems.MasterTemplate.Templates.Clear()

Dim itemsTemplate As GridViewTemplate = New GridViewTemplate

With itemsTemplate.Columns

.Add(colChklistHeadingID)

.Add(colChklistItemID)

.Add(colChklistItemName)

.Add(colChklistItemNote)

.Add(colChkItemTypeName)

.Add(colChkItemTypeSize)

End With

itemsTemplate.DataSource = gridListOfItems

gridViewChecklistItems.MasterTemplate.Templates.Add(itemsTemplate)

and also added the relation with master template colum and child template column

Dim itemToGroupRelation As GridViewRelation = New GridViewRelation(gridViewChecklistItems.MasterTemplate)

With itemToGroupRelation

.ChildTemplate = itemsTemplate

.RelationName = "GroupItems"

.ParentColumnNames.Add("ChecklistHeadingID")

.ChildColumnNames.Add("ChecklistHeadingID")

End With

gridViewChecklistItems.Relations.Add(itemToGroupRelation)

when i try to update the cell from mastertemplate column. the updated value in cell persists and also update the database
here i am using gridViewChecklistItems_CellValidating event to update the database. so its working fine.

now when i expand the item template/ child grid of specific row and update any sepecific cell,
the updated cell value does not persist in the Cell when i click on other cell or loose the focus from cell.
what would be the problem??.but the "gridViewChecklistItems_CellValidating" event is
fired and database is updated.

again one thing
when i update the one cell or more from itemtemplate. the event must be fired only once not for the cells
how to??

Thanks!

GridView

answered on 20 Oct 2010

8 answers

290 views

[Solved] Page View Events are not firing.

Hi,
I have a requirement.
Scenario: I need to develop a windows application,where i have to use pageview.In my application there are two pageviewpages with strip mode.
Problem is when i change pageview one page to another ,click events or any server side events are not firing.
on load of second page I have to load some data in datagrid.
I called the data populating method inside the click event,but data not get populating since the click event is not firing.

Please help me.

PageView

answered on 19 Oct 2010