Hi,
I have a problem with TemplatedColumn. I am having a tree control and ultrawebgrid. If user clicks on a tree element, the grid is dynamically loaded with TemplatedColumn inside. The code looks like this:
uwg_Grid.ResetRows()uwg_Grid.ResetColumns()uwg_Grid.Clear()uwg_Grid.Columns.Add(New Infragistics.WebUI.UltraWebGrid.UltraGridColumn("ID", "ID", Infragistics.WebUI.UltraWebGrid.ColumnType.NotSet, ""), True)Dim col As New Infragistics.WebUI.UltraWebGrid.TemplatedColumncol.Key = "template"col.HeaderText = "Column"col.CellTemplate = New PropertyTemplate(str_AssemblyName, str_NameSpace)
uwg_Grid.Columns.Insert(uwg_Grid.Bands(0).Columns.Count, col)
Inside PropertyTemplate class I am implementing InstantiateIn method where I am adding new TextBox to the cells. The problem is that if you enter something into any textbox in that TemplatedColumn, and click another tree element the above code will run which should clear the webgrid and recreate it from the scratch with empty values in cells, but somehow the value you have entered still exists. Do I need to perform some additional clearing of the TemplatedColumn ?
Thanks in advance
Bartek
I've seen a similar issue not that long ago, though it had to do with the filtering functionality of the grid when using a templated column. The problem is that the ASP.NET TextBox has functionality to preserve its contents between postbacks, which is problematic when you have dynamic data. It's hard to keep the data you want in the TextBox from being overwritten by this persistence functionality.
Do you get the same behavior if you use an HTML TextBox (INPUT type="text"), whether it's a server element or not?
That's bad. How could I create a html control from the asp vb level ? I just need the ability to enter some text to the cell of TemplatedColumn and save it to xml at some point. Maybe I could use another control than TextBox to achieve that ?
ThanksBartek