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Categories / C# / ADO Database
 

Fill Data from database table to ListView

using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Data.SqlClient; public class Form1 : System.Windows.Forms.Form {    private System.Windows.Forms.Label label1;    private System.Windows.Forms.Button cmdExecute;    private System.Windows.Forms.TextBox txtSql;    private System.Windows.Forms.ListView lvwResult;    private System.ComponentModel.Container components = null;    public Form1() {       InitializeComponent();    }    private void InitializeComponent() {       this.label1 = new System.Windows.Forms.Label();       this.cmdExecute = new System.Windows.Forms.Button();       this.txtSql = new System.Windows.Forms.TextBox();       this.lvwResult = new System.Windows.Forms.ListView();       this.SuspendLayout();       this.label1.Location = new System.Drawing.Point(0, 0);       this.label1.Name = "label1";       this.label1.Size = new System.Drawing.Size(296, 16);       this.label1.TabIndex = 0;       this.label1.Text = "Enter a SQL query or statement and click Execute.";       this.cmdExecute.Location = new System.Drawing.Point(227, 224);       this.cmdExecute.Name = "cmdExecute";       this.cmdExecute.TabIndex = 1;       this.cmdExecute.Text = "Execute";       this.cmdExecute.Click += new System.EventHandler(this.cmdExecute_Click);       this.txtSql.Location = new System.Drawing.Point(0, 16);       this.txtSql.Multiline = true;       this.txtSql.Name = "txtSql";       this.txtSql.Size = new System.Drawing.Size(528, 200);       this.txtSql.TabIndex = 2;       this.txtSql.Text = "";       this.lvwResult.GridLines = true;       this.lvwResult.Location = new System.Drawing.Point(0, 256);       this.lvwResult.Name = "lvwResult";       this.lvwResult.Size = new System.Drawing.Size(528, 200);       this.lvwResult.TabIndex = 3;       this.lvwResult.View = System.Windows.Forms.View.Details;       this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);       this.ClientSize = new System.Drawing.Size(528, 452);       this.Controls.Add(this.lvwResult);       this.Controls.Add(this.txtSql);       this.Controls.Add(this.cmdExecute);       this.Controls.Add(this.label1);       this.Name = "Form1";       this.Text = "Query Processor";       this.ResumeLayout(false);    }    static void Main() {       Application.Run(new Form1());    }    private void cmdExecute_Click(object sender, System.EventArgs e) {      SqlConnection conn = new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI");      try {        lvwResult.Columns.Clear() ;        lvwResult.Items.Clear();        conn.Open();        txtSql.Text ="select * from Employee";        SqlCommand cmd = conn.CreateCommand();        cmd.CommandText = txtSql.Text;        SqlDataReader dr = cmd.ExecuteReader();        for (int i = 0; i< dr.FieldCount; i++) {          ColumnHeader ch = new ColumnHeader();          ch.Text=dr.GetName(i);          lvwResult.Columns.Add(ch);        }        ListViewItem itmX;         while (dr.Read()) {          itmX=new ListViewItem();           itmX.Text= dr.GetValue(0).ToString();          for (int i=1 ; i< dr.FieldCount; i++) {             itmX.SubItems.Add(dr.GetValue(i).ToString());          }          lvwResult.Items.Add(itmX);        }        dr.Close();     } catch ( System.Data.SqlClient.SqlException  ex) {        Console.WriteLine("There was an error in executing the SQL." +                "\nError Message:" + ex.Message, "SQL");     } finally {        conn.Close();     }   } }