Hi,
I have a simple databound grid (grdPermissions) that has one "tinyint" column with possible values of 0, 1, or 2, which stand for Deny, Grant, or Not Set correspondingly.  This column is being added as a GridViewComboBoxColumn and bound to a List as shown in the code below.  The problem is that when the grid is bound and the data displayed, the combobox does not display its data until clicked with the mouse.  The combobox seems to have the correct value set, but shows nothing until clicked.  Also, once the combobox is closed the cell returns to showing nothing.  You can see the behaviour in the attached images; image1 shows the initial display of the grid, image2 shows how the cell displays the value when clicked, image3 shows the cell in another row displays its value but the previously selected combobox in the row above now displays no data.
What might I be doing wrong?

'**** BEGIN CODE ****
Imports Telerik.WinControls.UI
Imports System.Data
Imports System.Data.SqlClient

Public Class frmGroupPerms
    Private Sub somefunction()
        '** the GetGroupPermissions() function retrieves a table with the
        '** following columns
        '**    GroupID  int,
        '**    Name  nvarchar(255),
        '**    Description  nvarchar(255),
        '**    AppPermissionType  nvarchar(30),
        '**    PermValue  tinyint - can be 0, 1, or 2
       
        Dim _groupPermissions As DataTable = GetGroupPermissions(_groupId)
        _ConfigureGrid()
        grdPermissions.DataSource = _groupPermissions
    End Sub

    Private Sub _ConfigureGrid()
        Dim _perms As List(Of ComboItem) = New List(Of ComboItem)
        _perms.Add(New ComboItem(0, "Deny"))
        _perms.Add(New ComboItem(1, "Grant"))
        _perms.Add(New ComboItem(2, "Not Set"))

        Me.grdPermissions.AutoGenerateColumns = False
        Me.grdPermissions.Columns.Clear()
        Me.grdPermissions.Columns.Add(New GridViewTextBoxColumn("GroupId"))
        Me.grdPermissions.Columns.Add(New GridViewTextBoxColumn("Name"))
        Me.grdPermissions.Columns.Add(New GridViewTextBoxColumn("Description"))
        Me.grdPermissions.Columns.Add(New GridViewTextBoxColumn("AppPermissionType"))
        Dim _cmb As New GridViewComboBoxColumn()
        _cmb.Width = 150
        _cmb.Name = "PermValue"
        _cmb.FieldName = "PermValue"
        _cmb.HeaderText = "Permission"
        _cmb.DataSource = _perms
        _cmb.ValueMember = "ItemValue"
        _cmb.DisplayMember = "ItemText"
        Me.grdPermissions.Columns.Add(_cmb)
    End Sub

    Private Sub grdPermissions_DataBindingComplete(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewBindingCompleteEventArgs) Handles grdPermissions.DataBindingComplete
        grdPermissions.MasterTemplate.Columns("GroupId").IsVisible = False
        grdPermissions.MasterTemplate.Columns("Name").Width = 150
        grdPermissions.MasterTemplate.Columns("Description").Width = 150
        grdPermissions.MasterTemplate.Columns("AppPermissionType").Width = 200
    End Sub
End Class

Friend Class ComboItem
    Public Property ItemText As String
    Public Property ItemValue() As Short

    ''' <summary>
    ''' Initializes a new instance of the ComboItem class.
    ''' </summary>
    ''' <param name="itemValue"></param>
    ''' <param name="itemText"></param>
    Public Sub New(ByVal itemValue As Short, ByVal itemText As String)
        Me.ItemValue = itemValue
        Me.ItemText = itemText
    End Sub
End Class
'**** END CODE ****

Hello.

I have following situation: I have two grids and I need to some synchronize rows between them.
Synchronization implemented by sorting rows by some field, say syncId: if two rows must be synchronized
then I find the  highest syncId, increase it and assign to them. So the new synchronized rows is moved to
the top of grid. When I  add new rows (AddNewRowPosition = Bottom) there are blinking because it first tries to sort  new added row.
And also there is problem when removing rows when sorting is enabled - it select not the next row before deleted, but jumps higher,
beacuse added rows have the same syncId, say  -1, and when I delete one of the rows it jumps to the first row with syncId = -1. Not very good for usability. So is there any mechanism to suppress sorting while adding and removing rows.

Any thoughts?

I want to run separate query in each grid view, these grids is located in deferent taps that was created via dock…

Is that possible in rad grid view for win form?

The information I need to add is retrieved from the same DB

Hello all person in forum!

I send a picture. In picture, i write problem error me. You view my code, you will see code of ( string[] strArr ). If I add ( strArr.lengh < 30 ), this code run OK. Else, it will be problem.

Help me fix it ! Thanks all !

Previously I was running the latest 2010 edition of RadControls and had the background color of my TreeViews set to 191 | 219 | 254.  However after updating to Q1 2011, not matter what I set the color to it always shows as white.  I am not sure if this is a bug or if something changed internally.

Hi to everybody.
I have a problem creating a relation between a RadTreeView and a RadGridView.
I add the:
Me.RadTreeViewModelli.RelationBindings.Add(New RelationBinding("ModelloTessuti", Me.TblDBtblDBTessutiBindingSource))

If I bind the tree to a RadListBox the progam works fine, but with a RadGridView the behaviour seems random. Sometimes when I select the node the grid was refresh sometimes not.

Where I wrong?

Alessio

Hi,

Here is the problem :

I have a binding source (bsCustomers) filled with neccessary data from the database with entity framework.

When i checked the bsCustomers i can see the values are not NULL.
 
My treeview control`s (rtvCustomers) datasource is bsCustomers and I want to assign rtvCustomers.DisplayMember to Name field which is in tbContacts. 

bsCustomer  has --> tbContact.
tbContact has --> Code, Name.

So when i say


it doesnt work. (In radgridview such assignment ("tbContact.Name") works properly.)

As a solution in NodeCollectionChange


and it worked. I filled the treeview with customer Names. But i guess there must be another solution.

So is there any other solution to get treeview filled with Names?

Thanks.

Hi,

I was just wondering if there was any reason there are no overrides when instantiating a RadTreeNode to set BOTH the TEXT value AND Name Value of the node?

So lets say I wanna create a array of RadTreeNode from some data I have, since there just a constructor having the text (and others but still no NAME property) I have to loop through them to set one by one their name value...


Thanks :)

Hi!

Working with treeview I encountered some problems:

1. How can i override the default context menu methods (like add and delete)
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