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我有一个包含 DropDownList 的 GridView,并在 RowBoundEvent 中使用 DB 查询填充 DDL。

Grid 的其余列是 BoundFields,它们是从 (Object) 的列表中填充的。

每次我向 GridView 添加新行时,我都必须再次查询数据库以查找以前填充的 DDL 这我想避免,有什么建议吗?

编辑:添加代码

 <asp:BoundField DataField="getUserName" HeaderText="Name" />
 <asp:BoundField DataField="getUserId" HeaderText="User ID" />
 <asp:TemplateField>
        <ItemTemplate>
              <asp:DropDownList ID="ddlRoles" runat="server" >
        </asp:DropDownList>
      </ItemTemplate>
 </asp:TemplateField>

  Grid_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles addUsersGrid.RowDataBound

  Dim ddl As DropDownList = TryCast(e.Row.FindControl("ddlRoles"), DropDownList)
  If ddl IsNot Nothing Then
     Dim sSQL As String = "SELECT ..."

     Dim rolesAdapter As OdbcDataAdapter = New OdbcDataAdapter(sSQL, ADOCon)
     rolesAdapter.Fill(dt)
    For Each dr As DataRow In dt.Rows

        ddl.Items.Add(dr("NAME").ToString())
        ddl.Items(iInt).Value = dr("ID").ToString
        iInt += 1
    Next
  end if

这是相关的代码,我想。

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