using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Windows.Forms;
class Form1 : Form {
public Form1() {
InitializeComponent();
}
private void getData_Click(object sender, EventArgs e) {
getData.Enabled = false;
using (SqlConnection con = new SqlConnection(ConfigurationSettings.ConnectionStrings["northwind"].ConnectionString)) {
string select = "SELECT EmployeeID, FirstName, LastName, Photo, IsNull(ReportsTo,0) as ReportsTo FROM Employees";
SqlDataAdapter da = new SqlDataAdapter(select, con);
DataSet ds = new DataSet();
da.Fill(ds, "Employees");
select = "SELECT EmployeeID, FirstName + ' ' + LastName as Name FROM Employees union select 0,'(None)'";
da = new SqlDataAdapter(select, con);
da.Fill(ds, "Managers");
SetupColumns(ds);
dataGridView.AutoGenerateColumns = false;
dataGridView.DataSource = ds.Tables["Employees"];
dataGridView.AutoSizeRows(DataGridViewAutoSizeRowsMode.HeaderAndColumnsAllRows);
}
}
private void SetupColumns(DataSet ds) {
DataGridViewTextBoxColumn forenameColumn = new DataGridViewTextBoxColumn();
forenameColumn.DataPropertyName = "FirstName";
forenameColumn.HeaderText = "Forename";
forenameColumn.ValueType = typeof(string);
forenameColumn.Frozen = true;
dataGridView.Columns.Add(forenameColumn);
DataGridViewTextBoxColumn surnameColumn = new DataGridViewTextBoxColumn();
surnameColumn.DataPropertyName = "LastName";
surnameColumn.HeaderText = "Surname";
surnameColumn.Frozen = true;
surnameColumn.ValueType = typeof(string);
dataGridView.Columns.Add(surnameColumn);
DataGridViewImageColumn photoColumn = new DataGridViewImageColumn();
photoColumn.DataPropertyName = "Photo";
photoColumn.Width = 200;
photoColumn.HeaderText = "Image";
photoColumn.ReadOnly = true;
photoColumn.ImageLayout = DataGridViewImageCellLayout.Normal;
dataGridView.Columns.Add(photoColumn);
DataGridViewComboBoxColumn reportsToColumn = new DataGridViewComboBoxColumn();
reportsToColumn.HeaderText = "Reports To";
reportsToColumn.DataSource = ds.Tables["Managers"];
reportsToColumn.DisplayMember = "Name";
reportsToColumn.ValueMember = "EmployeeID";
reportsToColumn.DataPropertyName = "ReportsTo";
dataGridView.Columns.Add(reportsToColumn);
}
private void InitializeComponent() {
this.getData = new System.Windows.Forms.Button();
this.dataGridView = new System.Windows.Forms.DataGridView();
this.SuspendLayout();
//
// getData
//
this.getData.Location = new System.Drawing.Point(661, 544);
this.getData.Name = "getData";
this.getData.TabIndex = 0;
this.getData.Text = "Get Data";
this.getData.Click += new System.EventHandler(this.getData_Click);
//
// dataGridView
//
this.dataGridView.AllowUserToAddRows = false;
this.dataGridView.AllowUserToDeleteRows = false;
this.dataGridView.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.dataGridView.Location = new System.Drawing.Point(13, 13);
this.dataGridView.Name = "dataGridView";
this.dataGridView.Size = new System.Drawing.Size(722, 522);
this.dataGridView.TabIndex = 1;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(748, 579);
this.Controls.Add(this.dataGridView);
this.Controls.Add(this.getData);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
private System.Windows.Forms.Button getData;
private System.Windows.Forms.DataGridView dataGridView;
[STAThread]
static void Main() {
Application.EnableVisualStyles();
Application.EnableRTLMirroring();
Application.Run(new Form1());
}
}
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