76 lines
3.2 KiB
C#
76 lines
3.2 KiB
C#
using Npgsql;
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using System.Data;
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namespace DeviceAdmin
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{
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public partial class FormStaff : Form
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{
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NpgsqlConnection connection = Program.connection;
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private DataTable dataTable;
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private NpgsqlDataAdapter adapter;
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public FormStaff()
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{
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InitializeComponent();
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LoadGridView();
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}
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private void LoadGridView()
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{
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adapter = new NpgsqlDataAdapter("SELECT * FROM staff;", connection);
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dataTable = new DataTable();
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adapter.Fill(dataTable);
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dataGridView.DataSource = dataTable;
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DataGridViewColumnCollection columns = dataGridView.Columns;
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columns[0].HeaderText = "ID";
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columns[1].HeaderText = "ФИО";
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columns[2].HeaderText = "Отдел";
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}
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private void ButtonAdd_Click(object sender, EventArgs e)
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{
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NpgsqlCommand command = new NpgsqlCommand("INSERT INTO staff VALUES (nextval('seq_staff'), @surname || ' ' || @name || ' ' ||@patronymic, @department);", connection);
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command.Parameters.AddWithValue("@surname", textBoxSurname.Text);
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command.Parameters.AddWithValue("@name", textBoxName.Text);
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command.Parameters.AddWithValue("@patronymic", textBoxPatronymic.Text);
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command.Parameters.AddWithValue("@department", textBoxDepartment.Text);
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command.ExecuteNonQuery();
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LoadGridView();
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}
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private void ButtonEdit_Click(object sender, EventArgs e)
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{
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if (dataGridView.SelectedRows.Count > 0)
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{
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int id = (int)dataGridView.SelectedRows[0].Cells[0].Value;
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NpgsqlCommand command = new NpgsqlCommand("UPDATE staff SET full_name = @surname || ' ' || @name || ' ' ||@patronymic, department = @department WHERE Id = @Id", connection);
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command.Parameters.AddWithValue("@Id", id);
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command.Parameters.AddWithValue("@surname", textBoxSurname.Text);
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command.Parameters.AddWithValue("@name", textBoxName.Text);
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command.Parameters.AddWithValue("@patronymic", textBoxPatronymic.Text);
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command.Parameters.AddWithValue("@department", textBoxDepartment.Text);
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command.ExecuteNonQuery();
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LoadGridView();
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}
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else
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{
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MessageBox.Show("Please select a row to edit.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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private void ButtonDelete_Click(object sender, EventArgs e)
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{
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if (dataGridView.SelectedRows.Count > 0)
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{
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int id = (int)dataGridView.SelectedRows[0].Cells[0].Value;
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NpgsqlCommand command = new NpgsqlCommand("DELETE FROM staff WHERE Id = @Id", connection);
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command.Parameters.AddWithValue("@Id", id);
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command.ExecuteNonQuery();
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LoadGridView();
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}
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else
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{
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MessageBox.Show("Please select a row to delete.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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private void ButtonRefresh_Click(object sender, EventArgs e)
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{
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LoadGridView();
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}
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}
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}
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