How to use enter key on specific cell on datagridview although my datagridview send tab key

[engahmedbarbary]

Problem

I cannot use enter key to do specific action on datagridview when use keypress or keyup or keydown events .

I ask this to solve problem by add new lines on class xdatagrid or use already Exist code by another way or doing work around

To use Enter Key .

public class xDataGrid : System.Windows.Forms.DataGridView
{
public xDataGrid()
{

this.EditCellOnSelect = true;
this.AllowUserToAddRows = false;
this.ScrollBars = ScrollBars.Both;

}

#region Fields

public bool _CellEnteredFromTab, bIsGridValid = true, _StopCellTab;
bool _CellEnteredFromEsc = false;


[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public DataTable DeletedRows
{
get { return this._DeletedRows; }
}

[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public bool IsDataBinding { get; set; }






[DefaultValue(true)]
[Category("|DataBase|")]
[Description("Start Edit mode when click on cell by mouse")]
public bool EditCellOnSelect { get; set; }

[DefaultValue(true)]
[Category("|DataBase|")]
[Description("Allow user to add new rows")]
public bool AddNewRows { get; set; }






[DefaultValue(true)]
[Category("|DataBase|")]
public bool StopAddNewRow { get; set; }



[DefaultValue(false)]
[Category("Behavior")]
[Description("Empty the data of the grid when it have a datasource with the parent form empty event.")]
public bool EmptyDataWithForm { get; set; }

#endregion Properties

#region Events


protected override void OnCellEnter(DataGridViewCellEventArgs e)
{
base.OnCellEnter(e);

if (EditCellOnSelect && (this._CellEnteredFromTab || this.IsMouseOverCell(e.ColumnIndex, e.RowIndex)))
{

this.BeginEdit(true);
}

if (_CellEnteredFromEsc == false)
{
if (this.Rows[e.RowIndex].Cells[e.ColumnIndex].ReadOnly == false)
{
DataGridViewCell cell = this.Rows[e.RowIndex].Cells[e.ColumnIndex];
this.CurrentCell = cell;
this.BeginEdit(true);
}
}

this._CellEnteredFromTab = false;
}
protected override bool ProcessDialogKey(Keys keyData)
{
if (!bIsGridValid)
return false;
Keys key = (keyData & Keys.KeyCode);
if (key == Keys.Enter)
{
this.EndEdit(DataGridViewDataErrorContexts.Commit);
ProcessDataGridViewKey(new KeyEventArgs(Keys.Enter));
return true;
}
return base.ProcessDialogKey(keyData);
}
protected int _Get_The_Last_Visibale_Index()
{
int result = this.CurrentCell.ColumnIndex;
for (int i = this.CurrentCell.ColumnIndex + 1; i < this.Columns.Count; i++)
{
if (this.Columns.Visible && (this.Columns.Tag as ColumnTag) != null && !(this.Columns.Tag as ColumnTag).IsDisabled)
{
result = i;
}
}
return result;
}
protected override bool ProcessDataGridViewKey(System.Windows.Forms.KeyEventArgs e)
{
if (e.KeyCode == Keys.Escape)
_CellEnteredFromEsc = true;
else
_CellEnteredFromEsc = false;
int TimesToSend = 1;
if (this.CurrentRow == null) return base.ProcessDataGridViewKey(e);
else if (e.KeyCode == Keys.Enter)
{

if (this.CurrentCell.ColumnIndex == _Get_The_Last_Visibale_Index() && this.ValidateRequiredCellsInRow() && this.ValidateInRow() && this.CurrentCell.RowIndex == (this.Rows.Count - 1))
{
this.AddNewRow();
}
else
{
for (int i = this.CurrentCell.ColumnIndex + 1; i < this.Columns.Count; i++)
{
if (!this.Columns.Visible) continue;


if (this.Columns is DataGridViewButtonColumn) continue;


if (this.Columns.Tag != null && (this.Columns.Tag as ColumnTag).IsDisabled)
{
if (this[i, this.CurrentCell.RowIndex] == this[this.Columns.Count - 1, this.Rows.Count - 1] && this.ValidateRequiredCellsInRow() && this.ValidateInRow())
{
this.AddNewRow();
return false;
}
else TimesToSend++;
}
else break;
}

if (!_StopCellTab)
SendKeys.Send("{TAB " + TimesToSend + "}");
this._CellEnteredFromTab = true;
}

return false;
}
else if (e.KeyCode == Keys.Escape)
{
for (int i = this.CurrentCell.ColumnIndex - 1; i > -1; i--)
{
if (!this.Columns.Visible) continue;
if (this.Columns.Tag != null && (this.Columns.Tag as ColumnTag).IsDisabled)
{
if (this.Rows.Count > 1 && this.CurrentRow.Index == this.Rows.Count - 1 &&
this.CurrentCell == this[0, this.Rows.Count - 1] && this.ISEmptyRow(this.CurrentRow.Index))
{
if ((RowStates)this.CurrentRow.Tag != RowStates.Inserted)
this.AddToDeletedRows(this.CurrentRow);

this.Rows.RemoveAt(this.CurrentRow.Index);
this.SelectCell(this.CurrentRow.Index, this.Columns.Count - 1);
return false;
}
else TimesToSend++;
}
else break;
}
SendKeys.Send("+{TAB " + TimesToSend + "}");
this._CellEnteredFromTab = true;

return false;
}
else if (e.KeyCode == Keys.Delete && !this.ReadOnly)
{
xForm frm = this.FindForm() as xForm;

if (this.SelectedRows.Count > 0 && !this.IsCurrentCellInEditMode)
{

//Nasr 24-9-2014 - To Prevent Delete Row
if (this.StopDeleteRow)
{
this.StopDeleteRow = false;
return false;

}

if (MessageBox.Show(Globals.GetMessage(3), "", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.Yes)
{
bool returnVal = true;
foreach (DataGridViewRow row in this.SelectedRows)
{
if (frm.BeforeDeleteGridLine(row.Index, this.Name))
{
this.DeleteRow(row.Index, false);

}
else
{
return false;
}
}
returnVal = base.ProcessDeleteKey(Keys.Delete);

if (this.Rows.Count == 0) this.AddNewRow();

frm.ValueChanged = true;
return returnVal;
}
}

return false;
}
else if (bIsGridValid)
return base.ProcessDataGridViewKey(e);
return false;
}

any data grid I use it follow to custom class Xdatagrid

my problem i face is

any datagrid i use send tab key if related to xdatagrid

I need to send enter key when modify on specific cell .

my question How to make xdatagrid mygrid to enable enter key on specific cell as quantity ?

what i do .

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