Hi,

In my application I wantg to give the user the baility to select from multiple items using the checked drop down list box control, in adidtion I want to be able to do the following:

1. prevent the user from typing anything in to the RadCheckedDropDownListEditableAreaElement. i.e. the user can select items via the drop down check list.

2. override the text displayed in RadCheckedDropDownListEditableAreaElement, so that

• if no items are displayed there is no text
• if one item is displayed then monly that item is displayed - with no 'X' to remove it
• if more than one item is selected, then display the single word "Multiple"

How do I go about achieveing this behaviour ?

many thanks

Toby

I have a grouped by resources scheduler in timeline view with the timescale set to days and I'd like to set the so called "slot-duration" to half-day for the day cell, which can already be done in the aspnet ajax version I link below. Is there a way to achieve this functionality in c# winforms?

Basically I'd like to divide the day slots into two parts to track absences, which can have a half day and full day duration.

https://demos.telerik.com/aspnet-ajax/scheduler/examples/timelineview/defaultcs.aspx

I have for with a radspreadsheet on. ( Telerik.WinControls.UI.RadSpreadsheet )

Which event do I need to use to capture a change in a cell?

For example, if I change cell A2 from value "ABC" to "EFG", how can I get the value "EFG" ?

If I check the documentation: then the CellPropertyChanged event exists, but I cannot find this in my IDE.

Why are the events that I have in my radSpreadSheet different then the documentation? 

Hi, anyone can help me with the issue below?

I have a customized theme applied in my application. However, a customized editor doesn't apply the theme. I am not able to override the theme here.

    Private Sub RadGridView3_EditorRequired(sender As Object, e As EditorRequiredEventArgs) Handles RadGridView3.EditorRequired
        If RadGridView3.CurrentColumn.HeaderText = "Section" Then
            e.Editor = New MyAutoCompleteEditor
        End If
    End Sub

I have a RadGridView that has its first column(named "Visible") as a CheckBox cell in every row.

I have another CheckBox that toggles all the CheckBoxes in the GridView. In this CheckBox's ToggleStateChanged handler, I am trying to get the checkbox element in the GridView row and toggle its state.

This is what I am trying at the moment:

foreach(var myGridRow in curveGridView.Rows)
{
    ((GridViewCheckBoxColumn)myGridRow.Cells["Visible"].ColumnInfo).Checked = Telerik.WinControls.Enumerations.ToggleState.On;
}

However, I am unable to get the RadCheckBox element in the GridView Row and I cannot toggle the checkbox in the row.

Any help would be greatly appreciated.

Hello,

i am trying to show content of excel file in RadSpreadSheet. For first attempt its working fine, but if i decide to change something in excel file i can't do it, because RadSpreadSheet keep the excel file open. How can I lost connection to my excel, edit it, and reopen edited file again? I have tried everytime when i need to open excel create new instance OF RadSpreadSheet, but it doesn't work. Please look at the code below.


The code is basicly managed as: When i show UserControl  (Visible = true), i want to create new instance of RadSpreadSheet for losing existing connection and have option load the file what i edited. Please understand as cycle:  Open excel file in RadSpreadSheet, than i need to have options: edit / delete or recreate excel file and open the edited excel file again in RadSpreadSheet. But it doesn't work because new intance of RadSpreadSheet is empty and there is not loaded file or it throw exception: "The process cannot access the file "xxxx" because it is being used by another process".  Via code is it: User create excel file than this file is loaded to RadSpreadSheet (everything okay) and than has option to print this excel or go back and edit excel file again (when it eddited, the program drop with exception thats this file is used in another process) Personally i think when i load file and it is showing in RadSpreadSheet, and after that i want to edit file, the RadSpreadSheet has still connection to this file. The new instances of RadSpreadSheet is not solution of losing connection.

Last and not least i am sorry for my mistakes in English
Thank you for any response and your time. 

Hi,

I am trying to show data in a postgres DB in a RadVirtualGrid.  Data is big and continuously flows and changes, so I decided to use RadVirtualGrid, first I started witf RadGridView with VirtualMode on but decided to use RadVirtualGrid, hope thats the correct decision?

I can show the data correctly and get updates via LISTEN/NOTIFY mechanism of Postgres.(sometimes it stops updating but I think it is a postgres side problem) . I couldnt make the filtering work.

With regards to code I attached, Is it really possible to use the FilteringColumn which is shown when RadVirtualGrid.AllowFiltering==true.

When I enter a value to filter it doesnt work and filter textbox dissapears:

Here I hit 'APPLY FILTERS' button or pres enter key it show like below:

My reqs are:

* Display data with minimum delay

* Filter with column values. Some columns are decimal but some are enums so instead of writing the enum value in the filter having a dropbox (excel style) would be good.

* Filtering will work on all data not just on the visible rows in the grid. Also filtered grid should be updated when new data arrives.

*  Sorting (optional)

* Export data to XML (all data not only the visible rows)

Thanks in advance !

Hello

I have a hierarchical RadGridview with a GridViewCheckBoxColumn in the secondary template.

The column has EnableHeaderCheckBox = true so that it shows if all rows are checked and can be used to check them all.

If there are exactly two rows and I manually check the first of them the 'all checked' header checkbox gets checked - although the second row is not checked.

As soon as the second row is checked the error doesnt occur anymore

Hi,

i have a problem concerning (Telerik.wincontrol.dll 2012.3.1017.20)
Sometimes, but not everytime, when i start entering a value into one of my radtextboxes the following error will be thrown.

Please help me find the result of error ,  When will this issue be triggered? Urgently hoping for a reply。

在 Telerik.WinControls.Keyboard.ChordMessageFilter.FindChordPattern(IList`1 list)
   在 Telerik.WinControls.Keyboard.ChordMessageFilter.FindChordPattern()
   在 Telerik.WinControls.Keyboard.ChordMessageFilter.ProccessChord()
   在 Telerik.WinControls.Keyboard.ChordMessageFilter.System.Windows.Forms.IMessageFilter.PreFilterMessage(Message& msg)
   在 System.Windows.Forms.Application.ThreadContext.ProcessFilters(MSG& msg, Boolean& modified)
   在 System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)
   在 System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FPreTranslateMessage(MSG& msg)
   在 System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   在 System.Windows.Forms.Application.RunDialog(Form form)
   在 System.Windows.Forms.Form.ShowDialog(IWin32Window owner)

Hello, 

I'm using the RadGanttView component and I'm trying to manage multiple coloring on some tasks. 

I've followed the example given in your documentation: 

https://docs.telerik.com/devtools/winforms/controls/ganttview/custom-items/task-elements

I need to be able to condition the coloring of tasks and ensure that vertical scrolling does not affect rendering. 

Do you have any ideas on how to do this?

You'll find a sample project with the case described.

All you have to do is scroll vertically through the tasks, the task coloring will follow the scroll.

Thanks,

Rémi