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Looping through records in dataview in vb.net

Posted on 2014-03-27
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1,695 Views
Last Modified: 2014-03-27
Hi!

How do I write the loop so I dont manually have to do like this to achieve my result:( There can be 10 rows or 5 rows). I guess it must be something like:



  Dim id As String
        id = CType(sdsView.Table.Rows(0).ItemArray(5), String)
        id = id + CType(sdsView.Table.Rows(1).ItemArray(5), String)
        Label1.Text = id

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For Each rowView As DataRowView in sdsView
    Dim row As DataRow = rowView.Row
    ' Do something '
Next

but I cant figure out exactly how



More code-example

Partial Class _13_mobileservice_mobileservice_group
    Inherits System.Web.UI.Page
    Private sdsView As DataView
    Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        sdsView = (CType(SqlDataSource3.Select(DataSourceSelectArguments.Empty), DataView))
        Dim id As String
        id = CType(sdsView.Table.Rows(0).ItemArray(5), String)
        id = id + CType(sdsView.Table.Rows(1).ItemArray(5), String)
        Label1.Text = id
    End Sub

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Comment
Question by:marcgu
  • 2
  • 2
4 Comments
 
LVL 5

Accepted Solution

by:
jayakrishnabh earned 300 total points
ID: 39958306
Dim dv As New DataView(New DataTable())
Dim id As String = String.Empty
For Each item As DataRow In dv.Table.Rows
      id = id & Convert.ToString(item.ItemArray)
Next
Label1.Text = id
0
 

Author Comment

by:marcgu
ID: 39958535
Hi!

Thanks for fast reply, but the problem is that it now only writs:

System.Object[] (for each record)     instead of the value(s) in the cell.

I probably made a misstake when I tried to use your code in my example.

I changed to this:

Partial Class _13_mobileservice_mobileservice_group
    Inherits System.Web.UI.Page
    'Private sdsView As DataView

   
 Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim dv As New DataView(New DataTable())
        dv = (CType(SqlDataSource3.Select(DataSourceSelectArguments.Empty), DataView))
        Dim id As String = String.Empty
        'id = CType(sdsView.Table.Rows(0).ItemArray(5), String)
        'id = id + CType(sdsView.Table.Rows(1).ItemArray(5), String)
        'Label1.Text = id



        'Dim id As String 
        For Each item As DataRow In dv.Table.Rows
            id = id & Convert.ToString(item.ItemArray)
        Next
        Label1.Text = id




    End Sub

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0
 
LVL 5

Assisted Solution

by:jayakrishnabh
jayakrishnabh earned 300 total points
ID: 39958612
replace item.ItemArray with item.ItemArray[5]
0
 

Author Closing Comment

by:marcgu
ID: 39958633
Thanks for quick and professional response. Now it works as I planned.
0

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