
Hello,
I use one Datagridvew with 10.000 rows.
I add or remove FilterDescriptors by code.
this update block the thread 2s.
Its possible to display a radwaiting ? or move this action on other thread ?
Thank you.

Hello,
Ik have a gridview which is bound to a SQL-server table. Records in this table are changes by other users/programs.
Can anyone tell me the easiest way to Reload/Update the data in the gridview ?
Kind regards
A desperate developer



I'm using Visual Studio 2013 and Telerik UI for WinForms 2015.2.623.40.
I have a RadPageView with 4 tabs, each page view I would like to control my layout with a RadLayoutControl. In the designer view I setup a RadPageView on my first tab and place various UI elements (RadButtons, RadTextBox, etc. etc.) and everything behaves as expected. When I go to my second tab and setup a RadLayoutControl, it is almost as if the designer can see the layoutControlItems elements of the RadLayoutControl from the first page while I'm trying to setup the second page. Not only that but if you do manage to put two RadLayoutControls on various pages, the event handler that deals with the resizing event seems to throw an exception. Should I be able to use multiple RadLayoutControls in this way?
I've attached images, page1.png shows how I've setup a sample project with a form that has a pageview with four pages and a RadLayoutControl containing a RadButton, RadTextBox, RadRichTextBox, and a RadLabel; in page2.png I've clicked on the top right area and have selected layoutControlItem1 that is contained on the first RadPageView in the RadLayoutControl.


Hi,
I have a gridview, one of the columns is time in minutes. I've summed this in the SummaryRow, but would also like to convert it to hours and minutes.
I know how to convert it (as in, I know what I need to do to minutes to get hours) and have this that gives me the total of minutes:
Me.RadGridView1.MasterTemplate.ShowTotals = True
Dim summaryItem As New GridViewSummaryItem("actual_time", "Total Minutes = {0}", GridAggregateFunction.Sum)
Dim summaryRowItem As New GridViewSummaryRowItem()
summaryRowItem.Add(summaryItem)
Me.RadGridView1.SummaryRowsTop.Add(summaryRowItem)
Is it possible for me to get the value of so I can then manipulate it before passing it back to the SummaryItem?
Thanks, Shane

Hi,
I've got a gridview which contains a ListView of GridLayouts. In essence the items are made of SimpleListViewVisualItems very similar to the ListView example found in the demo applications for winforms. Instead of using a StackLayoutPanel for presentation, all data is filled into a GridLayout for easier maintenance and readability. How should I proceed to implement export and print functionality?
I thought of exporting row data to images and exporting those images similar to how it is done in a GridView of ChartElements, but GetAsBitmap returns nothing. Here is the relevant code:
Dim width = column.WidthDim height = grid.TableElement.ChildRowHeight - 40Dim radListElement = New RadListViewElement()Dim gridLayout As GridLayoutDim gridLayoutElements = New List(Of RadTextBoxElement)gridLayout = New GridLayout()gridLayout.StretchHorizontally = FalsegridLayout.StretchVertically = FalsegridLayout.Columns.Clear()gridLayout.Rows.Clear()Dim myFixedWidth = 300Dim myFixedHeight = 40gridLayout.Columns.Add(New GridLayoutColumn() With {.SizingType = GridLayoutSizingType.Fixed, .FixedWidth = myFixedWidth})gridLayout.Columns.Add(New GridLayoutColumn() With {.SizingType = GridLayoutSizingType.Fixed, .FixedWidth = myFixedWidth})gridLayout.Columns.Add(New GridLayoutColumn() With {.SizingType = GridLayoutSizingType.Fixed, .FixedWidth = myFixedWidth})gridLayout.Columns.Add(New GridLayoutColumn() With {.SizingType = GridLayoutSizingType.Fixed, .FixedWidth = myFixedWidth})gridLayout.Rows.Add(New GridLayoutRow() With {.SizingType = GridLayoutSizingType.Fixed, .FixedHeight = myFixedHeight})gridLayout.Rows.Add(New GridLayoutRow() With {.SizingType = GridLayoutSizingType.Fixed, .FixedHeight = myFixedHeight})gridLayout.Rows.Add(New GridLayoutRow() With {.SizingType = GridLayoutSizingType.Fixed, .FixedHeight = myFixedHeight})gridLayout.Rows.Add(New GridLayoutRow() With {.SizingType = GridLayoutSizingType.Fixed, .FixedHeight = myFixedHeight})gridLayout.Rows.Add(New GridLayoutRow() With {.SizingType = GridLayoutSizingType.Fixed, .FixedHeight = myFixedHeight})gridLayout.Rows.Add(New GridLayoutRow() With {.SizingType = GridLayoutSizingType.Fixed, .FixedHeight = myFixedHeight})For x As Integer = 0 To gridLayout.Rows.Count * gridLayout.Columns.Count - 1
Dim child As RadTextBoxElement = CType(GetTextBoxElement(x), RadTextBoxElement) child.SetValue(GridLayout.RowIndexProperty, x Mod gridLayout.Rows.Count)) child.SetValue(GridLayout.ColumnIndexProperty, CInt(Fix(x / gridLayout.Rows.Count))) gridLayout.Children.Add(child) gridLayoutElements.Add(child)NextradListElement.Children.Add(gridLayout)Application.DoEvents()radListElement.InvalidateMeasure(True)radListElement.UpdateLayout()Dim image = radListElement.GetAsBitmapEx(Color.White, 1, New SizeF(width, height))Dim imageTemp = New RadImageItem()imageTemp.Image = imageimageTemp.Image.Save(".\test" + i.ToString() + ".png")row.Cells("someColumn").Tag = imageTemp.Imagei += 1
Private Function GetTextBoxElement(count As Integer) As RadElement
Dim result As New RadTextBoxElement()
Dim myText As String = ""
result.Text = myText
result.StretchHorizontally = True
result.StretchVertically = True
Return result
End Function
I am sure I am missing something, but unsure of what it might be.
Looking forward to your respons

hi
I create a custom column as in documentation described, and can add it by code to grid view.
i want see my custom column in designer. i mean i want when i click to add to add column in property builder or in columns dialog, my custom column be there and can add it as predefined column to my columns in properrty builder or in columns dialog.
is there a way to do that?
thanks in advanced
