asp.net中一次更新DATAGRID中所有记录

发表于:2007-06-30来源:作者:点击数: 标签:
在asp .net 中,如何一次性更新datagrid中的所有记录呢?可以用如下的方法,首先, 要对DATAGRID中要更新的列建立模版列,比如: asp:datagrid id="dgPopularFAQs" runat="server" AutoGenerateColumns="False" ... Columns asp:BoundColumn DataField="FAQI

  在asp.net中,如何一次性更新datagrid中的所有记录呢?可以用如下的方法,首先,
  要对DATAGRID中要更新的列建立模版列,比如:


   asp:datagrid id="dgPopularFAQs" runat="server"
  AutoGenerateColumns="False"
  ...>
  <Columns>
  <asp:BoundColumn DataField="FAQID" ItemStyle-Width="10%"
  ItemStyle-HorizontalAlign="Center" HeaderText="FAQ ID" />

  <asp:BoundColumn DataField="CategoryName" HeaderText="Category" />
  
  <asp:TemplateColumn HeaderText="Question">
  <ItemTemplate>
  <asp:TextBox runat="server" id="txtDescription" Columns="75"
  Text=@#<%# Container.DataItem("Description") %>@# />
  </ItemTemplate>
  </asp:TemplateColumn>
  
  <asp:TemplateColumn HeaderText="Submitted By">
  <ItemTemplate>
  <asp:TextBox runat="server" id="txtSubmittedBy"
  Text=@#<%# Container.DataItem("SubmittedByName") %>@# />
  </ItemTemplate>
  </asp:TemplateColumn>

  </Columns>
  </asp:datagrid>
  之后,对DATAGRID进行一次遍历,
  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

原文转自:http://www.ltesting.net