Questions on UI for WinForms Forum

9 answers

304 views

RadGrid Hierarchy & CheckBoxColumn 3 states

Hi,

I'm working with 2010Q2 RadForm in VB.NET 2010

I had trouble achieving what I want with RadGridView (as something like a treeview)

I have one table with
> DadName (as string)
> ChildName (as string)
> ChildAge (as integer)

I would like to have this table in a RadGridView with hierarchy (Dad/Clildren) with a 3 state checkbox Column in order to let users select all/none/some chidren.

Master Template must have 3 columns : CheckBox, DadName, Clidren Count
Child Remplare must have 3 columns : CheckBox, ChildName, ChildAge

- When radgrid is shown for the first time, none off Child Template are displayed
- If DadName have only one Child, I don't whant to display the children template (plus sign) and the checkbox must be checked or unchecked
- if DadName have more than one chlid, user can :
- Check from Dad Row in order to select or unselect all children
- Display the Child template hierarchy in order to select some children (In this case the row dad parent checkbox must be on the third state if some clidren are selected, unchecked il none are selected, and checked if all are selected)

Ultimately, I need to retreive all chidren selected for all fathers in a loop.

Thanks for your help

Anthony

GridView

answered on 07 Nov 2010

3 answers

338 views

scroll position move after using beginupdate() and endupdate()

Hi

When the user scroll to the middle or the end of the grid and then I use beginupdate() and endupdate()

The scroll position return to the beginning of the grid and not stay where it was.

Thank you

Dror.

GridView

answered on 07 Nov 2010

2 answers

60 views

how to add 4level hirearchy to radgrid

hi,

i am using telerik winforms. i need to create four level hierarchy to radgrid . can anyone explain how to make this one

Regards
suresh.S

General Discussions

answered on 07 Nov 2010

1 answer

109 views

Problem with saving data

Hi,
I have some problems in my project:
1. When I try to save parent table this error occurs:
UPDATE statement conflicted with COLUMN REFERENCE constraint 'eq_em_id'. The conflict occurred in database 'KOC151', table 'eq', column 'em_id'.
2. I want to have a column which shows a text box that an ellipsis button resides in it.
3. When user presses Append button of DataNavigator control, I want to move cursor to the new row and first cell.
4. Please provide me a sample which show how can have column which is derived from GridViewDataColumn class and also make it possible to have my own editor, I don't want to use RadHostItem class.
Thank you, Tooraj Azizi.

GridView

answered on 07 Nov 2010

3 answers

79 views

Help

Hello every Buddy
I have a larg database and i want to view this data in RadGridView.
I want to view Data From DataBase in RadGridView while the application loading Data From DataBase.
Can any one Help me.
Thanks.

GridView

answered on 06 Nov 2010

1 answer

125 views

AutoHide Slide Out not working correctly

Here are the steps to reproduce the issue:

1) AutoHide a toolwindow
2) Hover the mouse on top of the toolwindow's tab
3) The AutoHide toolwindow will slide out displaying its content. You may need to do this several times to see it.

In step 3, when displaying the hosted content, the content is not in the correct position or something because there are empty space on the right and bottom of the hosted content. See attached pictures. I have to actually click on the tab for the hosted content to display correctly.

PS: The hosted control is TX Text Control. I don't know if this is caused by the control or raddock! I just tried adding a richtexteditor to a different tool windows and got a different problem. The control is not refresh itself correctly!

Phi

Dock

answered on 05 Nov 2010

5 answers

119 views

Pagewiew border back color change help

How can I change the border back color help please click picrue see

PageView

answered on 05 Nov 2010

7 answers

175 views

Set columns for child grid

Hello,
What would be the best way to programatically define the columns in a ChildGridViewTemplate, when I don't want to auot-generate them from the database? I have a hierarchical grid set up with two levels, and I would like to define the columns programatically, but when I set AutoGenerateColumns to false and try to add columns to the collection, nothing shows up in the child grid, or the parent grid shows no children. What is the correct way to do this (should the code be in a particular event of the grid)? Thanks!

GridView

answered on 05 Nov 2010

1 answer

77 views

Hierarchical grid view - how to manage column offset

Hi,

As in topic ... How to manage column size offset ?

Please take a look into attached screen shot, I've marked offsets I'd like to modify with a blue arrows.

Regards.

GridView

answered on 05 Nov 2010

4 answers

600 views

BeginEditMode, Cell Editing and Tab key problems

Telerik.Win.Control.UI.dll version is "2009.3.9.1203"

Hi,
I am running into several behavior problems with the RadGridView control.
1) If I set the BeginEditMode to "BeginEditOnF2", the user is still able to get into edit mode by double-clicking on a cell - not what is expected!
2) once the grid is in edit mode, the user can click on another cell to put it in edit mode regardless of the BeginEditMode setting
3) worst yet, if the user is editing a cell and hit the tab (or shift-tab), the new cell goes into edit mode but the changes to the original cell are not submitted to the bound dataset even though the CellEndEdit event is called (where I update the dataset). Code is below...

Any help would be greatly appreciated...
Ali M.

In the code below, I was forced to ignore the BeginEditMode property because it is not working and instead implemented a CellDoubleClick event handler that puts the cell into edit mode. If the user makes a change and hits the Enter key, then changes are submitted to the db in the CellEndEdit event handler. But, if the user tabs to another cell, the cell is put into Edit mode but the changes he/she made in the previous cell are not submitted...
My preferred solution would be to enforce the F2-only edit mode through the BeginEditMode property...

    
            Public Class RadForm1 
        
                Private _cellModifyBegin As Boolean 
        
                Private _currentEditCell As Integer 
        
                Private Sub RadForm1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 
        
                    _cellModifyBegin = False 
        
                    Try 
        
                        grdCustomers.EnterKeyMode = Telerik.WinControls.UI.RadGridViewEnterKeyMode.None 
        
                        Me.CustomerTableAdapter.Fill(Me.CustomerApps.Customer) 
        
                    Catch ex1 As System.Exception 
        
                        Debug.WriteLine(String.Format("Failed in frmMain2.frmMain2_Load - Exception: {0}", ex1.ToString())) 
        
                        My.Application.Log.WriteException(ex1) 
        
                        MessageBox.Show(String.Format("An error has ocurred. Message : {0}", ex1.Message())) 
        
                    Finally 
        
                        Debug.WriteLine("End ---> frmMain2.frmMain2_Load") 
        
                        My.Application.Log.WriteEntry(String.Format("End --->     {0:00}:{1:00}:{2:00}:{3:0000}   frmMain2.frmMain2_Load", Now.Hour, Now.Minute, Now.Second, Now.Millisecond)) 
        
                    End Try 
        
                End Sub 
        
                Private Sub grdCustomers_CellBeginEdit(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCellCancelEventArgs) Handles grdCustomers.CellBeginEdit 
        
                    Debug.Print(String.Format("grdCustomers_CellBeginEdit.  RowIndex={0}, CellIndex={1}", e.RowIndex, e.ColumnIndex)) 
        
                    If _currentEditCell <> e.ColumnIndex Then 
        
                        ' this cell got into Edit mode due to user tabbing away from a previous cell edit 
        
                        e.Cancel = True 
        
                        Return 
        
                    End If 
        
                    _cellModifyBegin = True 
        
                End Sub 
        
                Private Sub grdCustomers_CellDoubleClick(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles grdCustomers.CellDoubleClick 
        
                    Debug.Print(String.Format("grdCustomers_CellDoubleClick.  RowIndex={0}, CellIndex={1}", e.RowIndex, e.ColumnIndex)) 
        
                    _currentEditCell = e.ColumnIndex 
        
                    e.Row.Cells(e.ColumnIndex).BeginEdit() 
        
                End Sub 
        
                Private Sub grdCustomers_CellEndEdit(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles grdCustomers.CellEndEdit 
        
                    If grdCustomers.ActiveEditor.IsModified Then 
        
                        Debug.Print(String.Format("grdCustomers_CellEndEdit.  RowIndex={0}, CellIndex={1}", e.RowIndex, e.ColumnIndex)) 
        
                        CustomerTableAdapter.Update(CustomerApps.Customer) 
        
                        grdCustomers.Update() 
        
                    End If 
        
                    _cellModifyBegin = False 
        
                End Sub 
        
            End Class

GridView

answered on 05 Nov 2010