Hello,

I had redundancy checking code in UserAddingRow to ensure that no row is added with duplicate key values.
However, I'm trying to add the same checking into RowChanging to ensure that no values can be changed saved into the data source that would create that invalid situation.

I am finding that RowChanging is not getting fired (breakpoint on first line in method isn't reached), and am not sure if I'm thusly doing this incorrectly.

Thanks,

Vijay

Hi,

I've tried searching for this in the documentation and forums but it may be lack of searching skills I could not find any good walkthrough.

I'm trying to achieve a design that is similar to the Zune application in Windows. The Metro theme helps me achieve most of it but the Window behaviours such as dragging the form by holding it from an empty section, and also working on a wysiwyg type of design environment doesn't seem possible.

Can someone shed more light on how this can be achieved with a few pointers?

Thanks,

I have desktop alert with 2 controls
1) RadGridView (shown)
2) Panel with text area and some buttons. (hidden)

In radgridview, when i click on command button in a row, i need to show that panel with some additional info inside the text area.

So when i clicked, i have such code:
AlertControl.FixedSize = new Size(ALERT_WIDTH, _height);
_textBox.Clear();
_textBox.Text = txtMessage;

_textBox.Visible =
_btnCollapse.Enabled =
_btnNotify.Enabled =
_panelWithButtons.Visible = true;

This code works fine only when i use Hide(), this code, Show(). Have flickering here.
Without hide/show i see pretty strange thing, gridview disappear, textarea shown at top of control and height not changed (visually).

So how to invalidate without flickering, or what i can do at all here ?

Hi I'm having a problem when I want change the DataSource of the control.

I want to filter in my collection depending on the first selected item, for example.

I have 3 DataTables: 1 - All People, 2 - Men, 3 - Women.
First will be charged with Table 1 - All and and depending on the first selection I make, I want to update the DataSource with 2 - Men or 3 - Women.

I encounter problems when I try to change it. I'm doing at the event SelectionChanged, I note that have selected an item and the text ends with the delimiter character, then analyze and select the text which will be my new table and to modify the datasource throws ArgumentOutOfRangeException.


Thx
Regards.

Hi,
I’m  just evaluating your great gridview control and plan to use it in my future project as grid with a list of products. It must have a insert product functionality, so I need to replace the editor of standard text column with dropdown or another editor with autocomplete functionality.
The problem is that the products in selection are more than 30000 and there is some problems with performance when a text is typed in the editor and the control do the autocomplete operation. Another problem is that I must reload the editor datasorce every time on EditorRequired/EditorInitialized event although actually there is no changes in the datasource.
So my two questions are:
Is there a better approach to achieve autocomplete with lot of (30-50k) items without so many lag when typing?
And
Is there a way to use a editor without loading the datasource every time when the editor is required?

Thanks in Advance!
Slavcho

Hi,
I have a grid that I have bound my columns to a datareader.  I have 2 columns that I look at in this grid when wanting to make a custom combobox for a cell and they are "Batch Status" and "Status ID" and they are both textbox cell types.  For the column "Batch Status" I want to make it a combobox for certain cells if the "Batch Status" is "Open".

To start out I create a list array of all my combobox items.
Private mstrBatchStatusList As New List(Of ComboBoxDataSourceObject)()

Then I go ahead and use CellFormatting to make the cell a combobox if the Batch Status is "Open".
Private Sub rgvBatch_CellBeginEdit(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCellCancelEventArgs) Handles rgvBatch.CellBeginEdit
        '
        ' Got this from a website.  http://www.telerik.com/forums/dynamically-adding-controls-in-the-columns-in-the-grid
        ' The status column is a canceled Edit because I have substituted cell elements with my own elements
        ' (RadDropDownListEditorElement). In this way, I do not need to enter in edit mode and initialize the
        ' default column editor, because it is going to mess up with the new elements. I just use the elements'
        ' events to manage the change of the value and to save the cell value.
        '
        If e.Column.HeaderText = "Status" Then
            e.Cancel = True
        End If
    End Sub
    Private Sub rgvBatch_CellFormatting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellFormattingEventArgs) Handles rgvBatch.CellFormatting
        '
        ' Edit
        '
        If e.CellElement.ColumnInfo.HeaderText = "Edit" Then
            'This is how we get the RadButtonElement instance from the cell
            Dim button As RadButtonElement = CType(e.CellElement.Children(0), RadButtonElement)
            If e.CellElement.RowInfo.Cells("Batch_Status").Value IsNot Nothing Then
                Dim title As String = e.CellElement.RowInfo.Cells("Batch_Status").Value.ToString()
                If title = "Deleted" Then
                    button.Enabled = False
                Else
                    button.Enabled = True
                End If
            End If
        End If
        '
        ' Delete
        '
        If e.CellElement.ColumnInfo.HeaderText = "Delete" Then
            'This is how we get the RadButtonElement instance from the cell
            Dim button As RadButtonElement = CType(e.CellElement.Children(0), RadButtonElement)
            If e.CellElement.RowInfo.Cells("Batch_Status").Value IsNot Nothing Then
                Dim title As String = e.CellElement.RowInfo.Cells("Batch_Status").Value.ToString()
                If title <> "Open" Or mblnReadOnly Then
                    button.Enabled = False
                Else
                    button.Enabled = True
                End If
            End If
        End If
        '
        ' Status
        '
        If TypeOf e.CellElement.RowInfo Is GridViewDataRowInfo Then
            If e.CellElement.ColumnInfo.HeaderText = "Status" Then
                If e.CellElement.RowInfo.Cells("Batch_Status").Value IsNot Nothing Then
                    Dim strBatchStatus As String = e.CellElement.RowInfo.Cells("Batch_Status").Value.ToString()
                    Dim currentStatusID As Object = e.CellElement.RowInfo.Cells("AccPac_Batch_Status_ID").Value.ToString()
                    If strBatchStatus = "Open" And Not mblnReadOnly Then
                        Dim gvDropDownList As RadDropDownListEditorElement = Nothing
                        If e.CellElement.Children.Count = 0 OrElse Not (TypeOf e.CellElement.Children(0) Is RadDropDownListEditorElement) Then
                            e.CellElement.Children.Clear()
                            gvDropDownList = New RadDropDownListEditorElement()
                            For intI = 0 To mstrBatchStatusList.Count - 1
                                gvDropDownList.Items.Add(New RadListDataItem(mstrBatchStatusList.Item(intI).MyString, mstrBatchStatusList.Item(intI).Id))
                            Next
                            e.CellElement.Children.Add(gvDropDownList)
                            '
                            ' Preset the Drop down
                            '
                            If gvDropDownList IsNot Nothing Then
                                If currentStatusID IsNot Nothing Then
                                    gvDropDownList.SelectedValue = Convert.ToInt32(currentStatusID)
                                Else
                                    gvDropDownList.SelectedIndex = -1
                                End If
                            End If
                        Else
                            gvDropDownList = DirectCast(e.CellElement.Children(0), RadDropDownListEditorElement)
                        End If

                    ElseIf e.CellElement.Children.Count > 0 AndAlso TypeOf e.CellElement.Children(0) Is RadDropDownListEditorElement Then
                        '
                        ' Make sure any cells in the status column that are not "Open" status do not get changed to a combobox
                        '
                        e.CellElement.Children.Clear()
                    End If
                End If
            ElseIf e.CellElement.Children.Count > 0 AndAlso TypeOf e.CellElement.Children(0) Is RadDropDownListEditorElement Then
                '
                ' Make sure any other columns do not get changed to a combobox
                '
                e.CellElement.Children.Clear()
            End If
        End If
    End Sub

The above code works perfectly to setting the cell to a combobox when the Batch Status is "Open" and the drop down contains the correct values that are in my list array of (mstrBatchStatusList.Item.

Here are my questions:

1.  When I want to change my combobox value to a different item in the combobox, first I need to scroll to the right since my column you can't see.  I then change my value and scroll back to the left.  I then scroll back to the right and my combobox becomes reset to the original value.  It looks like upon scrolling right it calls the CellFormating function and when it gets to this line of the code (If e.CellElement.Children.Count = 0 OrElse Not (TypeOf e.CellElement.Children(0) Is RadDropDownListEditorElement) Then) it doesn't recognize that it's currently a combobox so it resets the combo box back to the original status id.

Why does this happen and how do I get this to not happen?

2.  If there an event that can be used that triggers a combo box change event so I can check the value it's changing to and set a flag that a value changed in the grid?

Thanks
 

I am currently building a theme, based on the supplied Metro. I'm pretty sure this wasn't an issue in the previous version of the Winforms controls, but under the latest version (Q1 2014), I'm having an issue with the background colour of the QuickAccess bar. 

When located in the window title, the caption bar it coloured correctly.


However, when located below the ribbon, I want the bar that goes the full length of the window to be a different shade. To achieve this, I've changed the background colour of RadRibbonBar-RadRibbonBarElement-RadRibbonBarElement. This colours the strip correctly, but unfortunately, when the QuickAccess bar goes below the ribbon there is also an artefact in the application icon.


Is this a bug or am I missing a background setting elsewhere?

Cheers
Jason

hello, how can i save dates from the scheduler/reminder into my database and also set the calender in the scheduler to load the dates from my very own database in c#.

Hey!

We have just updated to latest version of Telerik (Q1 2014). After the update, we noticed wierd issue with radsplitbutton's graphics (screenshot).
We are using our own theme based on office2010Silver. No matter which theme I used, the issue was still  in there (Control default, office 2010 silver, our own theme). Is there any solution for this issue?


Thx,
Toni Hämeenniemi

Hi, the labels on the x-axis go goofy when you rotate them.  Is there any work around to this, way to "align" them to the left/top, or any hope that it will be addressed in a future release? (attached)

Thank you