📄 defaultvalue.aspx

📁 asp.net技术内幕的书配源码

💻 ASPX

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<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>

<Script Runat="Server">

Sub Page_Load
  Dim dstTitles As DataSet
  Dim conPubs As SqlConnection
  Dim dadTitles As SqlDataAdapter
  Dim dtblTitles As DataTable
  Dim dcolPrice As DataColumn
  Dim drowTitle As DataRow

  ' Grab Titles Table
  dstTitles = New DataSet()
  conPubs = New SqlConnection( "Server=localhost;Database=Pubs;UID=sa;PWD=secret" )
  dadTitles = New SqlDataAdapter( "Select Title, Price From Titles", conPubs )
  dadTitles.Fill( dstTitles, "Titles" )

  ' Set Default Value
  dtblTitles = dstTitles.Tables( "Titles" )
  dcolPrice = dtblTitles.Columns( "Price" )
  dcolPrice.DefaultValue = 34.67

  ' Add New Row
  drowTitle = dtblTitles.NewRow()
  drowTitle( "Title" ) = "ASP.NET Unleashed"
  dtblTitles.Rows.Add( drowTitle )

  ' Bind to DataGrid
  dgrdTitles.DataSource = dstTitles
  dgrdTitles.DataBind()
End Sub

</Script>

<html>
<head><title>DefaultValue.aspx</title></head>
<body>

<asp:DataGrid
  ID="dgrdTitles"
  Runat="Server" />

</body>
</html>

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