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<%@ Import namespace="System.Data" %>
<%@ Import namespace="System.Data.SqlClient" %>
<html>
<head><title>Using Stored Procedures With Parameters</title></head>
<body>
<form runat="server" method="post">
Enter a State Code:
<asp:Textbox id="txtRegion" runat="server" />
<asp:Button id="btnSubmit" runat="server"
Text="Search" OnClick="Submit" />
<br/><br/>
<asp:DataGrid id="dgOutput" runat="server" />
</form>
</body>
</html>
<script language="VB" runat="server">
Sub Submit(ByVal Source As Object, ByVal E As EventArgs)
Dim strConnection As String = ConfigurationSettings.AppSettings("NWind")
Dim objConnection As New SqlConnection(strConnection)
Dim objCommand As New SqlCommand("sp_CustomersByState", objConnection)
objCommand.CommandType = CommandType.StoredProcedure
Dim objParameter As New SqlParameter("@region", SqlDbType.NVarChar, 15)
objCommand.Parameters.Add(objParameter)
objParameter.Direction = ParameterDirection.Input
objParameter.Value = txtRegion.Text
objConnection.Open()
dgOutput.DataSource = objCommand.ExecuteReader()
dgOutput.DataBind()
objConnection.Close()
End Sub
</script>
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