/* By samqty
 * 
 * this file contains an extended version of the the datagrid view 
 * it enables the horzontal movement of the focus when a user is entering data
 * 
 */
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;

namespace ZeeUIUtility
{
    //the class defination that inherits from DataGridView
    public class DataGridViewEx : DataGridView
    {
        public DataGridViewEx()
            : base()
        {
            //set the edit mode to "on enter" so that when a cell gains focus 
            //it automatically enters editing mode
            this.EditMode = DataGridViewEditMode.EditOnEnter;
        }

        protected override bool ProcessDialogKey(Keys keyData)
        {
            //if the key pressed is "return" then tell the datagridview to move to the next cell
            if (keyData == Keys.Enter)
            {
                MoveToNextCell();
                return true;
            }
            else
                return base.ProcessDialogKey(keyData);
        }

        /// <summary>
        /// this function moves the focus to the next cell
        /// </summary>
        public void MoveToNextCell()
        {
            int CurrentColumn, CurrentRow;

            //get the current indicies of the cell
            CurrentColumn = this.CurrentCell.ColumnIndex;
            CurrentRow = this.CurrentCell.RowIndex;

            //if cell is at the end move it to the first cell of the next row
            //other with move it to the next cell
            if (CurrentColumn == this.Columns.Count - 1 && CurrentRow != this.Rows.Count - 1)
            {
                base.ProcessDataGridViewKey(new KeyEventArgs(Keys.Home));
                base.ProcessDataGridViewKey(new KeyEventArgs(Keys.Down));
            }
            else
                base.ProcessDataGridViewKey(new KeyEventArgs(Keys.Right));

        }
    }
}