96 lines
2.7 KiB
C#
96 lines
2.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using System.Configuration;
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using System.Collections;
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using System.Data.SqlClient;
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namespace Database2
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{
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public partial class frmTest : Form
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{
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public frmTest()
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{
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InitializeComponent();
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}
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private void cboTest_SelectedIndexChanged(object sender, EventArgs e)
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{
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}
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private void dgvStudents_CellContentClick(object sender, DataGridViewCellEventArgs e)
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{
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}
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private void frmTest_Load(object sender, EventArgs e)
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{
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SqlConnection connString = null;
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try
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{
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//hide the data grid
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dgvStudents.Visible = false;
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//create the connection string
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connString = new SqlConnection("server=74.37.2.53; initial catalog=College2; connect timeout=30; User ID=admin;Password=password;");
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SqlCommand cmdString = new System.Data.SqlClient.SqlCommand();
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//open the connection
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connString.Open();
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cmdString.Connection = connString;
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//clear any parameters
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cmdString.Parameters.Clear();
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//link the connection
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cmdString.Connection = connString;
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//create the command type
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cmdString.CommandType = CommandType.Text;
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//set the timeout
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cmdString.CommandTimeout = 1500;
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//create and execute SQL statement
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cmdString.CommandText = "SELECT student_id,fname, lname, ' ' + lname as fullname, acct_bal, dob FROM student;"; //query
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//create data adapter
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SqlDataAdapter adapter = new SqlDataAdapter();
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adapter.SelectCommand = cmdString;
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//create and fill dataset
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DataSet ds = new DataSet();
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adapter.Fill(ds);
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//get data source
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//load combo boxes
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cboTest.DataSource = ds.Tables[0];
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cboTest.ValueMember = "STUDENT_ID";
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cboTest.DisplayMember = "fullname";
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cboTest.SelectedIndex = -1; //Do not select any item
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}
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catch (Exception ex)
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{
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MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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finally
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{
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connString.Close();
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}
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}
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}
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} |