Hi,

My problem is with RadForm. When I create a descendant from RadForm and put on it many telerik components, then I see application memory is increasing every time I open that form. I have prepared a small example: there are two forms: first form is just standard .NET form with button to open RadForm and then ask GC about Total used memory. I have used version 2009.2.729 and the problem was with one form, which after 100 times of opening and closing results in about 2 gigabytes of allocated memory. I have checked the last version of Telerik WinForms 2009.3.9.1203, but it still allocates more memory every next time.

The explicit call to garbage collector does not help.

And why I can't attach zip file ?

You can download the zip archive (17 kb) from here http://rapidshare.com/files/367983868/TelerikCheck.zip.html

The single method I have write is following :

Hi !

I have a grid and one of the column is multi column combo box. Everything works fine.
When I want to resize RadMultiColumnComboBoxElement, I found it particulary very hard.Is not working for example like rad grid in this code:
rdgv.MasterGridViewTemplate.BestFitColumns()

Practically I had to re size it manually.

This is my code and my question is ; Is any way to resize RadMultiColumnComboBoxElement like rad grid control, only specifying a property like BestFitColumns ?

My code for the grid and multicolumnComboBox column :

Private Sub ConfigureGridView(ByVal dtEmpJob As DataTable, ByVal dtListEmployees As DataTable)

        If dtEmpJob Is Nothing OrElse dtListEmployees Is Nothing Then
            Return
        End If

        rdgv.DataSource = dtEmpJob
        Me.rdgv.MasterGridViewTemplate.Columns("EmpNo").HeaderText = "Emp.No"
        Me.rdgv.MasterGridViewTemplate.Columns("Active").HeaderText = "Active"

        Dim col As GridViewDataColumn = TryCast(rdgv.MasterGridViewTemplate.Columns("EmpFullName"), GridViewDataColumn)

        If Not col Is Nothing Then
            rdgv.MasterGridViewTemplate.Columns.Remove(col)
        End If

        Dim col1 As GridViewMultiComboBoxColumn = New GridViewMultiComboBoxColumn
        col1.DataSource = dtListEmployees
        col1.DisplayMember = "EmpFullName"
        col1.ValueMember = "pEmployeeId"
        col1.FieldName = "EmpNo"
        col1.HeaderText = "Custom"
        rdgv.MasterGridViewTemplate.Columns.Add(col1)
        AddHandler rdgv.CellBeginEdit, AddressOf rdgv_CellBeginEdit

        rdgv.MasterGridViewTemplate.BestFitColumns()

        Me.rdgv.MasterGridViewTemplate.Columns("EmpNo").Index = 0
        Me.rdgv.MasterGridViewTemplate.Columns("EmpNo1").Index = 1
        Me.rdgv.MasterGridViewTemplate.Columns("Active").Index = 2
    End Sub


    Private isColumnAdded As Boolean
--------------------------------------the  CODE WHERE I HAD TO RESIZE MULTICOLUMN COMBOBOX----------------------------------------------
    Private Sub rdgv_CellBeginEdit(ByVal sender As Object, ByVal e As GridViewCellCancelEventArgs)
        If TypeOf Me.rdgv.CurrentColumn Is GridViewMultiComboBoxColumn Then
            If (Not isColumnAdded) Then
                isColumnAdded = True

                Dim multiColumnComboElement As RadMultiColumnComboBoxElement = CType(Me.rdgv.ActiveEditor, RadMultiColumnComboBoxElement)
                multiColumnComboElement.EditorControl.MasterGridViewTemplate.AutoGenerateColumns = False

                multiColumnComboElement.DropDownSizingMode = SizingMode.UpDownAndRightBottom
                multiColumnComboElement.DropDownMinSize = New Size(300, 100)

                Dim column As New GridViewTextBoxColumn("pEmployeeId")
                column.HeaderText = "Emp No"
                column.Width = 60
                multiColumnComboElement.Columns.Add(column)
                column = New GridViewTextBoxColumn("EmpFullName")
                column.HeaderText = "Employee"
                column.Width = 120
                multiColumnComboElement.Columns.Add(column)

                multiColumnComboElement.BestFitColumns()
                multiColumnComboElement.AutoSizeDropDownToBestFit = True

            End If
        End If
    End Sub


Regards,
Mihai

I would like to create a new a new user control taht consists of a RadLabel and RadCombo box control. When I click add User Control, I do not see a template for a "Telerik Rad User Control". If I create a regular user control and try to change it's inheritance from UserControl to RadControl or even RadCustomControl I can't work with the result. Suggestions on how to do this?

What is the best way to get the max levels of a treeview instead of looping throw the nodes.  Is there a property in the control that gets the max levels or should I just create a recursive function to loop through each node for children?

thanks Stephen

In version Q1 2010 there is no DataSource field for GridViewComboBox in Property builder.

Hello,

I have a radDataGrid and the source is a List<customerClass>, where curstomer class have nullable fields ( DateTime? and int? ).
When i want to set the filter in the filterRow on such a column I get the following exception.

How can I make the filter working on such columns?

Regards
Roland

System.InvalidCastException wurde nicht behandelt.

Message=

"Ungltige Umwandlung von \"System.DateTime\" in \"System.Nullable`1[[System.DateTime, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]\"."

 

Source=

"mscorlib"

 

StackTrace:

bei System.Convert.DefaultToType(IConvertible value, Type targetType, IFormatProvider provider)

bei System.DateTime.System.IConvertible.ToType(Type type, IFormatProvider provider)

bei System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)

bei Telerik.WinControls.UI.GridFilterCellElement.SetFilterValue(Object value)

bei Telerik.WinControls.UI.GridFilterCellElement.set_Value(Object value)

bei Telerik.WinControls.UI.RadGridView.UpdateFiltering()

What I am trying to do is to change the style/coloring of a RadMenuItem.  I want the left side of the menu to have a different coloring style then of the whole RadMenuItem, left section meaning the section that contains the icons/images of the menu item.

When I set the  below properties it changes the whole item.

        CType(MenuControl.GetChildAt(0), Telerik.WinControls.Primitives.FillPrimitive).BackColor = System.Drawing.Color.FromArgb(CType(CType(215, Byte), Integer), CType(CType(255, Byte), Integer), CType(CType(255, Byte), Integer))

        CType(MenuControl.GetChildAt(0), Telerik.WinControls.Primitives.FillPrimitive).BackColor2 = System.Drawing.Color.FromArgb(CType(CType(132, Byte), Integer), CType(CType(255, Byte), Integer), CType(CType(78, Byte), Integer))

        CType(MenuControl.GetChildAt(0), Telerik.WinControls.Primitives.FillPrimitive).BackColor3 = System.Drawing.Color.FromArgb(CType(CType(63, Byte), Integer), CType(CType(255, Byte), Integer), CType(CType(10, Byte), Integer))

        CType(MenuControl.GetChildAt(0), Telerik.WinControls.Primitives.FillPrimitive).BackColor4 = System.Drawing.Color.FromArgb(CType(CType(78, Byte), Integer), CType(CType(255, Byte), Integer), CType(CType(255, Byte), Integer))

 

Thanks in advance for your help.

hi Guys,

Sorry i m quite new to the Telerik RadControls.
I have a terrible issue with the autosize property of the RadGridview for winforms.

I set my AutoSizeRows to True at design time and autosize columns mode = none.

then in  my code..
MYGridView.DataSource = dataSet.Tables[0].DefaultView;
MYGridView.Columns["Comments"].MaxWidth = 500;
MYGridView.Columns["Comments"].WrapText = true;
    foreach (Telerik.WinControls.UI.GridViewDataColumn item in MYGridView.Columns)
                    {
                        item.BestFit();
                    }
And after this. i when i look at my girdview its autosized its contents to the size of of the font in the cells. which is very very ugly.
i want to set a minHeight for the columns but i am unable to do so.. please help...

i have tried what is discussed in these threads but of now use.

http://www.telerik.com/community/forums/winforms/gridview/wraptext-and-autosizerows-true.aspx
http://www.telerik.com/community/forums/winforms/gridview/wrapping-text-in-cell.aspx

Please give me your valuable suggestions.

Thanks in advance.

...

hi
i am using telerik rad control winforms q1 2010 with visual studio 2005, when i am run the telerik visual style builder it display an error message "Telerik.VisualStyleBuilder has encountered a problem and needs to close. we are sorry for the inconvenience.
what is the reason for display the error message?
plz help me, its very urgent