Questions on UI for WinForms Forum

2 answers

323 views

Hi,

I just reinstalled VS2012 due to some strange malfunction (I couldn't add controls to forms from the toolbox), and at the same time, i uninstalled Telerik Winforms controls version 2010_3_10_1215 and installed version 2012_3_1211, which we use in our solution.
My problem is, that in the Telerik controls Toolbox tab, most controls are greyed out, and appears twice.
I have tried the TelerikToolboxCleaner from one of the other posts, but apparently it works with VS2010, not VS2012.
I have also used the Telerik Toolbox Configurator.
I wan't to have all controls available one time.

I'm not too fond of resetting the toolbox, because I fear it might mess up a lot of other things.

How do I fix this?

I hope you can help me resolve this issue.

BR
Henning

General Discussions

answered on 11 Feb 2013

6 answers

528 views

type in combo box column

I have a column in a rad grid that's a combo box column. i've loaded the datasource with stuff. it shows fine and users can pick one. this column is filled with possible responses but they should also be able to type anything they want in the combo editor area and it retain that until they save it. after that, the grid will be cleared and the drop downs loaded etc and return to the original state. i can't get that to work though, after i type something in and leave, it disappears. is there a way to allow users to pick something or type in it?

thanks

GridView

answered on 11 Feb 2013

1 answer

131 views

RadMaskEdit Mask - Adding value on right side

I am trying to set the RadMaskEdit control up as a input for a point of sale. I need to enter the value of cash given by a customer. I'm using a popup numeric keypad but it will not have a decimal point button on it - just a number pad. The end result needs two decimal places like "3.50" but as you type in a number it needs to be added to the end of the number. For example; when i need to enter $3.50 i would just type 3 5 0 (no decimal point). The end result should be 3.50 in the text box.

Example 2
first digit entered 3 would display 0.03
second digit 5 entered would display 0.35
third digit 0 entered would display 3.50

I'm not sure what type of format you would call this but this is what i need. I tried a buch of options for the mask but none so far are giving me this functionality.

Can someone provide me a clue or point me in the right direction on this?

MaskedEditBox

answered on 11 Feb 2013

1 answer

200 views

select an radlistbox item by right click the mouse

Hi ,
I am using rad listbox for display the data and having context menu by right click the listbox.
I am having problem in selected item by right click(not selected if any other item by right clicking).
please give solution for this.

General Discussions

answered on 11 Feb 2013

1 answer

387 views

change bakground color of tabs

Hi
I use radpageView in my project that have many pages in it.and use the telerik Metrothem for that.now I want to change tab's background color from its default (Green) to another color.How Do this ?in which property?
thank you

Tabstrip (obsolete as of Q2 2010)

answered on 11 Feb 2013

2 answers

129 views

C# does not recognize Section, Paragraph, Table

I created a new project to start working with the RadRichTextBox item. However, when I have tried to copy code from the forum into the project (for instance, the code found at http://www.telerik.com/community/forums/winforms/richtextbox/inserting-an-image-into-richtextbox-table.aspx), the project fails to recognize the types Section, Table, TableRow, TableCell, ImagineInline, Paragraph, as well as all the others not defined in standard C#. I think all the required dlls are present, and I am supplying the correct using statements at the top.

I cannot find out where those classes are defined in the telerik namespace so I can refer to them.

I am using the latest version, 2012 Q3.

Any suggestions would be appreciated.

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 10 Feb 2013

7 answers

238 views

RadRibbonBar has a gap between title bar and commandbar

Hi guys,

I upgraded my project to Q3-2012 today and now there is a small gap between the title bar and command bar in my RadRibbonForm.
I even create a blank project and just add a RadRibbonBarForm in to make sure my code doesnt change the way it shows.
Also I notice all the buttons in QuickAccessToolBar have border as well. These border will disappear when I move the mouse over.
Is there any way I can get rid of the gap?

Dean

RibbonBar

answered on 09 Feb 2013

1 answer

392 views

Tooltips font and delay

Hello

I have a RadGridView, and when a user hovers the mouse over a cell, I would like to give him a "how did this data got here" kind of tooltip. Using RadGridView1_ToolTipTextNeeded works well, and allows me to query the database for the detailled informations of a cell, but I would like to display it in a column-aligned tooltip to make it easy to read. I created a complex method that "pad" the tooltip "columns" according to the number of characters, but I got caught by the rookie mistake that the default font is not fixed size (like Arial).

Is there a way to change the displayed font?

Also, can the tooltip display timer be increased? I would like the user to have time to read it before it closes.

Thanks

GridView

answered on 08 Feb 2013

16 answers

274 views

How to embed a GridView in a ScreenTip?

Hi Guys

I'm trying to embed a gridview in a screen tip in order to display information about a cell in an underlying grid when that cell IsMouseOver.

I'm using the following code embedding a grid in a RadHostItem and then adding that to the Items collection of the screentip. Debugging shows that the RadHostItem and its grid are appearing in the collection but the Grid does not display when the screentip is displayed.
Any help to solve this would be appreciated.

Many thanks in advance
Regard
Ian Carson

void rgvOperationsGrid_ScreenTipNeeded(object sender, ScreenTipNeededEventArgs e)

{

var cell = e.Item as GridDataCellElement;

if (cell == null ) return;

if(cell.ColumnIndex==5 || cell.ColumnIndex==7)

ShowParameterScreenTipForCell(cell);

}

private void ShowParameterScreenTipForCell(GridDataCellElement cell)

{

var tipGrid = new RadGridView();

tipGrid.Columns.Add(new GridViewTextBoxColumn {HeaderText = "This is a column"});

tipGrid.MasterTemplate.BestFitColumns();

var rowInfo = tipGrid.Rows.AddNew();

rowInfo.Cells[0].Value = "Hello";

var screenTip = new RadOffice2007ScreenTipElement();

screenTip.ThemeRole = "Office2010Silver";

screenTip.AutoSize = false;

screenTip.Size = new Size(200, 200);

screenTip.CaptionLabel.Text = "This is a Screen Tip";

var contentItem = new RadHostItem(tipGrid);

contentItem.MinSize = new Size(100, 100);

//contentItem.Image = Resources.Execution24;

//contentItem.FitToSizeMode = RadFitToSizeMode.FitToParentBounds;

screenTip.Items.Insert(1, contentItem);

cell.ScreenTip = screenTip;

}

GridView

answered on 08 Feb 2013

2 answers

404 views

NullReferenceException when bound data changed on non-UI thread

When I sort my grid on certain columns and then change the data bound to the grid from a thread other than the main UI thread, I sometimes get a null reference exception.

My setup is basically this:

_gridView.DataSource = myObject.Children;
// user sorts grid
// user requests update from server
make BackgroundWorker to pull from server and update myObject.Children (fields of existing objects and add/remove from list)
show progress dialog on UI thread while data is being pulled from server and put into Children on BackgroundWorker thread

I get this exception:

System.NullReferenceException {"Object reference not set to an instance of an object."}

at Telerik.Collections.Generic.AvlTree`1.FixInsert(AvlTreeNode`1 t, AvlTreeNode`1 u, Int32[] ad, Int32 n)

at Telerik.Collections.Generic.AvlTree`1.Insert(Int32 index, ValueT value)

at Telerik.Collections.Generic.AvlTree`1.InsertWithDuplicates(ValueT value)

at Telerik.Collections.Generic.AvlTree`1.Add(ValueT item)

at Telerik.WinControls.Data.AvlIndex`1.Perform()

at Telerik.WinControls.Data.AvlIndex`1.get_Items()

at Telerik.WinControls.Data.RadDataView`1.get_Items()

at Telerik.WinControls.Data.RadCollectionView`1.GetEnumerator()

at Telerik.WinControls.UI.GridViewInfo.Refresh()

at Telerik.WinControls.UI.GridViewInfo.get_ChildRows()

at Telerik.WinControls.UI.GridViewTemplate.get_ChildRows()

at Telerik.WinControls.UI.GridViewRowInfo.get_Index()

at Telerik.WinControls.UI.GridDataRowElement.UpdateAlternatingRowColor()

at Telerik.WinControls.UI.GridDataRowElement.ApplyCustomFormatting()

at Telerik.WinControls.UI.GridRowElement.UpdateInfo()

at Telerik.WinControls.UI.GridDataRowElement.UpdateInfo()

at Telerik.WinControls.UI.GridRowElement.Initialize(GridViewRowInfo rowInfo)

at Telerik.WinControls.UI.GridRowElement.Attach(GridViewRowInfo row, Object context)

at Telerik.WinControls.UI.BaseVirtualizedContainer`1.InsertElement(Int32 position, IVirtualizedElement`1 element, T data)

at Telerik.WinControls.UI.BaseVirtualizedContainer`1.UpdateElement(Int32 position, T data)

at Telerik.WinControls.UI.ScrollableRowsContainerElement.UpdateElement(Int32 position, GridViewRowInfo data)

at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureElements()

at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.UI.ScrollableRowsContainerElement.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)

at Telerik.WinControls.RadElement.Measure(SizeF availableSize)

at Telerik.WinControls.UI.RowsContainerElement.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)

at Telerik.WinControls.RadElement.Measure(SizeF availableSize)

at Telerik.WinControls.Layouts.ContextLayoutManager.UpdateLayout()

at Telerik.WinControls.Layouts.ContextLayoutManager.UpdateLayoutCallback(ILayoutManager manager)

Looking at my worker thread state when this exception occurs, I get this more complete looking call stack. It looks like this should perhaps being doing an Invoke to move these changes to the grid back to the UI thread.

[Managed to Native Transition]

mscorlib.dll!System.Type.IsVisible.get() + 0x23 bytes

System.dll!System.SecurityUtils.MethodInfoInvoke(System.Reflection.MethodInfo method, object target, object[] args) + 0x30 bytes

System.dll!System.ComponentModel.ReflectPropertyDescriptor.GetValue(object component) + 0x5f bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadListSource<System.__Canon>.GetBoundValue(object dataBoundItem, string propertyName) + 0x3a bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.BoundAccessor.this[Telerik.WinControls.UI.GridViewRowInfo].get(Telerik.WinControls.UI.GridViewRowInfo row) + 0xb7 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewDateTimeColumn.GetValue(Telerik.WinControls.UI.GridViewRowInfo row, Telerik.WinControls.UI.GridViewDataOperation operation) + 0x15 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewRowInfoComparer.CompareRows(Telerik.WinControls.UI.GridViewRowInfo x, Telerik.WinControls.UI.GridViewRowInfo y, Telerik.WinControls.Data.SortDescriptorCollection context) + 0x93 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewRowInfoComparer.Compare(Telerik.WinControls.UI.GridViewRowInfo x, Telerik.WinControls.UI.GridViewRowInfo y) + 0xe bytes

Telerik.WinControls.dll!Telerik.Collections.Generic.AvlTree<Telerik.WinControls.UI.GridViewRowInfo>.Insert(Telerik.WinControls.UI.GridViewRowInfo value, bool duplicateallowed, bool overwrite) + 0x114 bytes

Telerik.WinControls.dll!Telerik.Collections.Generic.AvlTree<System.__Canon>.InsertWithDuplicates(System.__Canon value) + 0x32 bytes

Telerik.WinControls.dll!Telerik.Collections.Generic.AvlTree<System.__Canon>.Add(System.__Canon item) + 0x5 bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.AvlIndex<Telerik.WinControls.UI.GridViewRowInfo>.Perform() + 0x2ff bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.AvlIndex<Telerik.WinControls.UI.GridViewRowInfo>.Items.get() + 0x10 bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadDataView<System.__Canon>.Items.get() + 0xe bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadCollectionView<Telerik.WinControls.UI.GridViewRowInfo>.GetEnumerator() + 0x11 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewInfo.Refresh() + 0x213 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewInfo.ChildRows.get() + 0x1f bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewTemplate.ChildRows.get() + 0xa bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.ViewInfoTraverser.SetCollectionForStage(bool initializeCollection) + 0x138 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.ViewInfoTraverser.ChangeCollectionForward() + 0x49 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.ViewInfoTraverser.MoveNextCore() + 0x33 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.ViewInfoTraverser.MoveNext() + 0x3a bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridTraverser.MoveNextCore() + 0x42 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridTraverser.MoveNext() + 0xd bytes

Telerik.WinControls.UI.dll!Telerik.WinControls.UI.ItemScroller<Telerik.WinControls.UI.GridViewRowInfo>.UpdateScrollRange() + 0x60 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.RowScroller.UpdateScrollRange() + 0x19 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridTableElement.UpdateWhenItemChanged(Telerik.WinControls.UI.DataViewChangedEventArgs args) + 0x94 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridTableElement.UpdateViewCore(object sender, Telerik.WinControls.UI.DataViewChangedEventArgs args) + 0x1ed bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridTableElement.UpdateView(object sender, Telerik.WinControls.UI.DataViewChangedEventArgs args) + 0x4e bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridTableElement.ProcessTemplateEvent(Telerik.WinControls.UI.GridViewEvent eventData) + 0xc7 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridTableElement.Telerik.WinControls.UI.IGridViewEventListener.ProcessEvent(Telerik.WinControls.UI.GridViewEvent eventData) + 0x196 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(Telerik.WinControls.UI.GridViewEvent gridEvent, Telerik.WinControls.UI.PriorityWeakReferenceList list, Telerik.WinControls.UI.GridEventProcessMode processMode) + 0xa4 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessEvent(Telerik.WinControls.UI.GridViewEvent gridEvent) + 0x35 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(Telerik.WinControls.UI.GridViewEvent gridEvent) + 0x8a bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents() + 0xda bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(Telerik.WinControls.UI.GridViewEvent gridEvent) + 0x61 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(Telerik.WinControls.UI.GridViewTemplate template, Telerik.WinControls.UI.GridViewEvent eventData, bool postUI) + 0x18b bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewTemplate.DispatchEvent(Telerik.WinControls.UI.GridViewEvent gridEvent, bool postUI) + 0xb bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewTemplate.DispatchDataViewChangedEvent(object sender, Telerik.WinControls.UI.DataViewChangedEventArgs args) + 0xa2 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewTemplate.OnViewChanged(object sender, Telerik.WinControls.UI.DataViewChangedEventArgs e) + 0x49 bytes

Telerik.WinControls.GridView.dll!Telerik.WinControls.UI.GridViewTemplate.CollectionView_CollectionChanged(object sender, Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e) + 0x2e bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadCollectionView<System.__Canon>.OnCollectionChanged(Telerik.WinControls.Data.NotifyCollectionChangedEventArgs args) + 0x3f bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadDataView<Telerik.WinControls.UI.GridViewRowInfo>.ProcessCollectionChanged(Telerik.WinControls.Data.NotifyCollectionChangedEventArgs args) + 0x11b bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadCollectionView<System.__Canon

>.source_CollectionChanged(object sender, Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e) + 0x23 bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadListSource<System.__Canon>.OnCollectionChanged(Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e) + 0x1e bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadListSource<System.__Canon>.ChangeItem(int index, System.__Canon item, string propertyName) + 0xc2 bytes

Telerik.WinControls.dll!Telerik.WinControls.Data.RadListSource<System.__Canon>.currencyManager_ListChanged(object sender, System.ComponentModel.ListChangedEventArgs e) + 0x125 bytes

System.Windows.Forms.dll!System.Windows.Forms.CurrencyManager.OnListChanged(System.ComponentModel.ListChangedEventArgs e) + 0x15 bytes

System.Windows.Forms.dll!System.Windows.Forms.CurrencyManager.List_ListChanged(object sender, System.ComponentModel.ListChangedEventArgs e) + 0x53e bytes

System.Data.Entity.dll!System.Data.Objects.ObjectView<System.__Canon>.OnListChanged(System.ComponentModel.ListChangedEventArgs changeArgs) + 0x1f bytes

System.Data.Entity.dll!System.Data.Objects.ObjectView<DataAccess.Child

>.System.Data.Objects.IObjectView.EntityPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e) + 0x4d bytes

System.Data.Entity.dll!System.Data.Objects.ObjectViewListener.EntityPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e) + 0x31 bytes

System.Data.Entity.dll!System.Data.Objects.DataClasses.StructuralObject.OnPropertyChanged(string property) + 0x31 bytes

System.Data.Entity.dll!System.Data.Objects.DataClasses.StructuralObject.ReportPropertyChanged(string property) + 0x23 bytes

System.Data.Entity.dll!System.Data.Objects.DataClasses.EntityObject.ReportPropertyChanged(string property) + 0x50 bytes

GridView

answered on 08 Feb 2013