Write code for button to call Oracle stored procedure. The complete source code for .ASPX file is given below:
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data.OracleClient" %>
<%@ Import Namespace="System.Data" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Button1_Click(object sender, EventArgs e)
{
OracleConnection con = new OracleConnection("uid=hr;pwd=hr");
try
{
con.Open();
OracleCommand spcmd = new OracleCommand("ChangeSalary");
spcmd.CommandType = CommandType.StoredProcedure;
spcmd.Connection = con;
spcmd.Parameters.Add("empid", OracleType.Number, 5).Value = txtEmpid.Text;
spcmd.Parameters.Add("sal", OracleType.Number, 5).Value = txtSal.Text;
spcmd.ExecuteNonQuery();
// now retreive data and display new salary
OracleCommand qcmd = new OracleCommand("select salary from employees where employee_id = :empid", con);
qcmd.Parameters.Add("empid", OracleType.Number, 5).Value = Int32.Parse(txtEmpid.Text);
Object salary = qcmd.ExecuteScalar();
lblMsg.Text = String.Format("New salary = {0}", salary.ToString());
}
catch (Exception ex)
{
lblMsg.Text = "Error --> " + ex.Message;
}
finally
{
con.Close();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>
Calling Stored Procedure</h3>
<table>
<tr>
<td style="width: 147px">
Enter employee id :</td>
<td style="width: 38px">
<asp:TextBox ID="txtEmpid" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td style="width: 147px">
Enter new salary :
</td>
<td style="width: 38px">
<asp:TextBox ID="txtSal" runat="server"></asp:TextBox></td>
</tr>
</table>
<br />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Call Procedure" /><br />
<br />
<asp:Label ID="lblMsg" runat="server" Font-Bold="True"></asp:Label></div>
</form>
</body>
</html>
