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2 answers
352 views

Since GridView.ClearSelection Method is totaly crap(See attached file: NoSelectionFormatting.png)

i need to handle the rowformatting and cellformattiong when no Selection on gridview is done.

Removing the Backcolor was not the problem. But now i need to get the Default Border Color for GridViewCells and GridViewRows when its not selected.(See attached file: NoSelectionFormattingV1.png)

I am using Windows8 Theme in my application but this could be different for other customers, so i tried to get the Theme for the Current Theme like that:

 

Dim theme As Theme = ThemeResolutionService.GetTheme(ThemeResolutionService.ApplicationThemeName)

 

Just for testing if the Propertys exists that i need i implemented the following code:

Dim styleGroup As StyleGroup = theme.FindStyleGroup("Telerik.WinControls.UI.RadGridView")
 
For Each propertyGroup In styleGroup.PropertySettingGroups
    For Each setting In propertyGroup.PropertySettings
        Select Case setting.Name
            Case "BorderColor"
                e.RowElement.BorderColor = setting.Value
            Case "BorderColor2"
                e.RowElement.BorderColor2 = setting.Value
            Case "BorderColor3"
                e.RowElement.BorderColor3 = setting.Value
            Case "BorderColor4"
                e.RowElement.BorderColor4 = setting.Value
        End Select
    Next
Next
 

But the BorderColor was never set to the default.

Thanks for any help.

Florian
Top achievements
Rank 1
 answered on 15 Sep 2015
3 answers
89 views

The problem is described here:

http://www.telerik.com/support/kb/winforms/details/radgridview-crud-in-object-relational-hierarchy-mode

Due to performance considerations, the RadGridView bound to an object-relational hierarchy supports CRUD operations only for its first level. 

 

I don't want performance but I need to write at less as possible code to achieve this. Performance isn't an issue if I can ignore manually handling of operations for next levels.

  

 

Also another related question is that does ASP.NET RadGridView act like WinForms or it can support unlimited level of CRUD operations ?

Hristo
Telerik team
 answered on 15 Sep 2015
21 answers
1.0K+ views
I have a few virtual grids that have a somewhere between a few hundred and several thousand rows in them.

No matter what I try I am getting a stackoverflow error on the CellValueNeeded event anytime I try to sort any of my grids.

Not sure what to do here.

David
Dimitar
Telerik team
 answered on 15 Sep 2015
2 answers
167 views

I have a problem with RadGridView on Winform C# that is couldn't change any properties of RadGridView such as IsCurrent, IsSelected, CurrentRow, ... It's not effect yet.

For example:

My grid isn't readonly, and I changed some values below:

this.myGridView.CurrentRow = this.myGridView.Rows[0];

... then the value of CurrentRow when I watch is still null.

this.myGridView.Rows[0].IsCurrent = true;

... then it's still show as false for that.

Dimitar
Telerik team
 answered on 15 Sep 2015
0 answers
165 views

I wanted to show a clear button to either clear the value or text of the control.

 

The idea is the same as the clear button in 

dateTimePicker.DateTimePickerElement.Calendar.ClearButton

 

But I don't see any ClearButton from its child elements.

 

I came up with the idea to rename the Close Button in

radTimePicker.TimePickerElement.PopupContentElement.FooterPanel.ButtonElement

and to add a clear action on its Click Event.

 

I came up with this code:

radTimePicker.TimePickerElement.PopupContentElement.FooterPanel.ButtonElement.Text = "Clear";
(radTimePicker.TimePickerElement.PopupContentElement.FooterPanel.Children[0] as RadButtonElement).TextElement.Text = "Clear";
(radTimePicker.TimePickerElement.PopupContentElement.FooterPanel.Children[0] as RadButtonElement).ToolTipText = "Clear";
radTimePicker.TimePickerElement.PopupContentElement.FooterPanel.ButtonElement.Click +=
 delegate(object sender, EventArgs e) {  radTimePicker.Value = null;  };​

 

The tooltiptext works as well as the clearing of value. with this, I know that I am using the right button element.

But the Text always revert/return to "Close". 

 

Am I forgetting something?

 

 

Joem
Top achievements
Rank 2
 asked on 15 Sep 2015
2 answers
492 views

Hey!

How to align the values in the pivot grid cells?
The text seems to be centered by default but i found no obvious property to change this behaviour. I need right alignment.

In the Silverlight version of this control they seem to be aligned to the right by default.

Cheers,

Jens

Jens
Top achievements
Rank 1
 answered on 14 Sep 2015
1 answer
1.5K+ views
Dear good day,
Generally to obtain the value of a selected cell I did the following:
GridView.Item var = (0, GridView.CurrentCell.Row.Index) .Value value obtained with this column 0 and selected cell.
How I can do the same but using a RadGridView?

Best regards.

Javier
Electrónica GOIA
Top achievements
Rank 2
 answered on 11 Sep 2015
7 answers
320 views
I am new to the WinForms components and here is what I would like to be able to do. Not sure if this functionality is built in or if I will need to use a combination of Telerik controls so I figured it would be faster to ask. :)

I want to be able to fill a listview... then have a way to type in criteria and have it filter the listview accordingly. I want to be able to use checkboxes so once I have the listview filtered I can select certain items using the checkboxes.

Then I want to be able to remove the criteria and the listview restores all the items while retaining the items with checks in the checkboxes. Then i'll enter new criteria, which filters the list, i select more items via the checkboxes, remove the criteria, selected items are retained and so on...

Please let me know how to do this. :)
Hristo
Telerik team
 answered on 11 Sep 2015
9 answers
161 views
Hi when i drag and drop one multicolumncombobox, and change some properties that i need for all my comboboxes.

Then I try copy this control by control + c and then control + v ->  finally a bug appear.


the nesteddatagrid is out of container control(multicolumcombobox).

this behaviour is not normal.

Thanks.(only work around that i found was in designer copy all code and paste it this again) but there is no good work around.
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 11 Sep 2015
6 answers
115 views

I have a column group that contains 5 rows. I wish to hide the headers of the last 4 rows. I did put in the following code in the viewcellformatting event (below, but it did not hide the column group rows. My headertext on those rows are empty, and the images are attached. "Capture2.jpg" is the image before using the viewcellformatting event code. "Before.jpg" is the event code below being implemented, and "result.png" is what I am attempting to achieve. Thanks in advance for any help.

 

    Private Sub RadGridView1_ViewCellFormatting(sender As Object, e As CellFormattingEventArgs) Handles RadGridView1.ViewCellFormatting

        If TypeOf sender Is GridHeaderCellElement Then
            e.CellElement.Visibility = Telerik.WinControls.ElementVisibility.Collapsed
            e.CellElement.AutoSize = False
            e.CellElement.MaxSize = New Size(0, 0)
           e.CellElement.MinSize = New Size(0, 0)
           e.CellElement.Size = New Size(0, 0)

       End If​

   End Sub
Dess | Tech Support Engineer, Principal
Telerik team
 answered on 11 Sep 2015
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