ASP中一次更新DATAGRID中所有記錄

來源:互聯網
上載者:User
在asp.net中,如何一次性更新datagrid中的所有記錄呢?可以用如下的方法,首先,
  要對DATAGRID中要更新的列建立模版列,比如:

   asp:datagrid id="dgPopularFAQs" runat="server"
  AutoGenerateColumns="False"
  ...>
  
    ItemStyle-HorizontalAlign="Center" HeaderText="FAQ ID" />
  
    Text='<%# Container.DataItem("Description") %>' />
  
  
    Text='<%# Container.DataItem("SubmittedByName") %>' />
   
  之後,對DATAGRID進行一次遍曆,
  Dim myConnection as New SqlConnection(connection string)
  Dim myCommand as New SqlCommand(strSQL, myConnection)

  Dim dgi as DataGridItem
  For Each dgi in dgPopularFAQs.Items
  'Read in the Primary Key Field
  Dim id as Integer = Convert.ToInt32(dgPopularFAQs.DataKeys(dgi.ItemIndex))
  Dim question as String = CType(dgi.FindControl("txtDescription"), TextBox).Text
  Dim submittedBy as String = CType(dgi.FindControl("txtSubmittedBy"), TextBox).Text
  
  'Issue an UPDATE statement...
  Dim updateSQL as String = "UPDATE TableName SET Question = @Question, " & _
  "SubmittedByName = @SubmittedByName WHERE FAQID = @ID"
  myCommand.Parameters.Clear()
  myCommand.Parameters.Add("@Question", question)
  myCommand.Parameters.Add("@SubmittedByName", submittedBy)
  
  myCommand.ExecuteNonQuery()
  Next
 



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