Hi Alfred,
I don't think this is as sophisticated as what you need, but code below
might give you ideas on how to create a second header.
If you are trying to show and hide portions of the data, be sure to check
out Hierargrid at
http://www.denisbauer.com/ASPNETCont...ierarGrid.aspx
Let us know how you make out?
Ken
Microsoft MVP [ASP.NET]
Dim dt As DataTable
Private Sub Page_Load _
(ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles MyBase.Load
DataGrid1.ShowHeader = True
DataGrid1.DataSource = CreateDataSource()
DataGrid1.DataBind()
End Sub
Private Sub DataGrid1_ItemDataBound _
(ByVal sender As Object, _
ByVal e As _
System.Web.UI.WebControls.DataGridItemEventArgs) _
Handles DataGrid1.ItemDataBound
' Add a second header with a flag button in it
' by Ken Cox Microsoft MVP [ASP.NET]
If e.Item.ItemType = ListItemType.Header Then
' Get the collection of cells from the grid
Dim tcells As TableCellCollection
' Create an imagebutton
Dim imgBtn As New ImageButton
' Assign the URL
imgBtn.ImageUrl = "http://www.gc.ca/images/flag.gif"
' Get the collection of existing cells so we can get a count
tcells = e.Item.Cells
' Create a new cell
Dim fcell As New TableCell
' Add the image button to the new table cell
fcell.Controls.Add(imgBtn)
' Span the cell to however many columns there are
fcell.ColumnSpan = tcells.Count
' Create a new header object
Dim dgItemHeader As New DataGridItem _
(0, 0, ListItemType.Header)
' Add the cell to the header
dgItemHeader.Cells.Add(fcell)
dgItemHeader.Visible = True
' Add the header to the datagrid
DataGrid1.Controls(0).Controls.Add(dgItemHeader)
End If
End Sub
Function CreateDataSource() As ICollection
' Create sample data for the DataList control.
dt = New DataTable
Dim dr As DataRow
' Define the columns of the table.
dt.Columns.Add(New DataColumn("Student", GetType(String)))
dt.Columns.Add(New DataColumn("Subject", GetType(String)))
dt.Columns.Add(New DataColumn("Day", GetType(String)))
' Populate the table with sample values.
dr = dt.NewRow
dr(0) = "Ben"
dr(1) = "English"
dr(2) = "Thursday"
dt.Rows.Add(dr)
dr = dt.NewRow
dr(0) = "Ben"
dr(1) = "Geology"
dr(2) = "Monday"
dt.Rows.Add(dr)
dr = dt.NewRow
dr(0) = "Ben"
dr(1) = "Physics"
dr(2) = "Tuesday"
dt.Rows.Add(dr)
Dim dv As DataView = New DataView(dt)
Return dv
End Function
"Alfred Salton" <> wrote in message
news:2004071421432016807%alfredsalton@hotmailcom.. .
>I have a need for multiple header rows in a datagrid. One header row
>contains the column headings, the next header row contains html input
>fields, buttons and other controls and serves as a template for javascript
>functions to add and delete rows from the table without a round trip to the
>server (too much latency involved in each round trip). The template row has
>a css display style set to none - javascript and the web DOM are used to
>clone it and add a new row to the table when requested by the user.
>
> Is this possible using the datagrid? Can anyone give a simple code
> example?
>
> I also need to be able to serialize/unserialize the contents of the table
> as an XML file to retain the items as a working draft document over time.
> I believe this is more easily done with the datagrid control than an html
> table object, but I welcome suggestions.
>
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