keyevents in datagrid

Hallo,

I have a windows form with one treeview and two panels.In one panel have a datagrid. I am trying to capture the keyevents in the datagrid.When i use keydown eventhandler for the datagrid the keystrokes gets captured only if the rowheader or the pointer on left side of the grid.

I also tried ProcessCmdKey, but then the event gets captured anywhere in the form which i dont want to happen. Can anybody please help me

thanks n regards
swingme

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keyevents in datagrid

Scott Lloyd

Add a tablestyle to your datagrid. Add a handler to the keypress events for the datagridtextboxcolumn's textbox to recieve the event. Here is a vb.net sample for recieving the validate event

http://www.windowsformsdatagridhelp.com/default.aspx ID=bece831d-6742-4364-bd0d-203ca99d2825

Rod B

Here is some sample code

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace GridKeyPress
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
  private System.Windows.Forms.DataGrid dataGrid1;
  /// <summary>
  /// Required designer variable.
  /// </summary>
  private System.ComponentModel.Container components = null;

  public Form1()
  {
   //
   // Required for Windows Form Designer support
   //
   InitializeComponent();

   //
   // TODO: Add any constructor code after InitializeComponent call
   //
  }

  /// <summary>
  /// Clean up any resources being used.
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if (components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }

  #region Windows Form Designer generated code
  /// <summary>
  /// Required method for Designer support - do not modify
  /// the contents of this method with the code editor.
  /// </summary>
  private void InitializeComponent()
  {
   this.dataGrid1 = new System.Windows.Forms.DataGrid();
   ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
   this.SuspendLayout();
   //
   // dataGrid1
   //
   this.dataGrid1.DataMember = "";
   this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
   this.dataGrid1.Location = new System.Drawing.Point(14, 37);
   this.dataGrid1.Name = "dataGrid1";
   this.dataGrid1.Size = new System.Drawing.Size(418, 192);
   this.dataGrid1.TabIndex = 0;
   //
   // Form1
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(448, 266);
   this.Controls.Add(this.dataGrid1);
   this.Name = "Form1";
   this.Text = "Form1";
   this.Load += new System.EventHandler(this.Form1_Load);
   ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
   this.ResumeLayout(false);

}
#endregion

  /// <summary>
  /// The main entry point for the application.
  /// </summary>
  [STAThread]
  static void Main()
  {
   Application.Run(new Form1());
  }

  private void Form1_Load(object sender, System.EventArgs e)
  {
   SqlConnection conn;
   SqlDataAdapter da;
   DataSet ds;
   conn = new SqlConnection("Server = KENSACER;Database = NorthWind; Integrated Security = SSPI;");
   da = new SqlDataAdapter("Select * from Categories", conn);
   ds = new DataSet();
   try
   {
    da.Fill(ds, "Categories");
    DataGridTableStyle ts;
    ts = new DataGridTableStyle();
    ts.MappingName = "Categories";

    DataGridTextBoxColumn colName;

    colName = new DataGridTextBoxColumn();
    colName.MappingName="CategoryName";
    colName.HeaderText = "Name";
    colName.Width = 80;
    colName.TextBox.KeyPress += new KeyPressEventHandler(keypressed);
    DataGridTextBoxColumn colDescription;

    colDescription = new DataGridTextBoxColumn();
    colDescription.MappingName="Description";
    colDescription.HeaderText = "Description";
    colDescription.Width = 250;

    ts.GridColumnStyles.Add(colName);
    ts.GridColumnStyles.Add(colDescription);
    dataGrid1.TableStyles.Add(ts);
   }
   catch (Exception ex)
      {
       System.Diagnostics.Trace.WriteLine(ex.ToString());
      }

dataGrid1.DataSource = ds.Tables["Categories"];
}

  void keypressed(Object o, KeyPressEventArgs e)
  {
   System.Diagnostics.Trace.WriteLine(e.KeyChar);
  }

}
}

Jeremy Boschen
hallo Ken,

Its not working. I dont know what i do wrong. I tried with event handler for key down.But as i told only works if i first click on the table header or on the left rand.

thanks n regards
swingme
keyevents in datagrid

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