DataGridView上でEnterキーを押下すると隣のセルへ移動する方法

DataGridView上でEnterキーを押下すると隣のセルへ移動する方法
ProcessDialogKey、ProcessDataGridViewKeyを活用する方法
VB.NET

Imports System
Imports System.Windows.Forms

Public Class DataGridViewEx
    Inherits DataGridView

    <System.Security.Permissions.UIPermission( _
        System.Security.Permissions.SecurityAction.Demand, _
        Window:=System.Security.Permissions.UIPermissionWindow.AllWindows)> _
    Protected Overrides Function ProcessDialogKey( _
            ByVal keyData As Keys) As Boolean
        If (keyData And Keys.KeyCode) = Keys.Enter Then
            Return Me.ProcessTabKey(keyData)
        End If
        Return MyBase.ProcessDialogKey(keyData)
    End Function

    <System.Security.Permissions.SecurityPermission( _
        System.Security.Permissions.SecurityAction.Demand, _
        Flags:=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)> _
    Protected Overrides Function ProcessDataGridViewKey( _
            ByVal e As KeyEventArgs) As Boolean
        If e.KeyCode = Keys.Enter Then
            Return Me.ProcessTabKey(e.KeyCode)
        End If
        Return MyBase.ProcessDataGridViewKey(e)
    End Function
End Class

C#

using System;
using System.Windows.Forms;

public class DataGridViewEx : DataGridView
{
    [System.Security.Permissions.UIPermission(
        System.Security.Permissions.SecurityAction.Demand,
        Window = System.Security.Permissions.UIPermissionWindow.AllWindows)]
    protected override bool ProcessDialogKey(Keys keyData)
    {
        if ((keyData & Keys.KeyCode) == Keys.Enter)
        {
            return this.ProcessTabKey(keyData);
        }
        return base.ProcessDialogKey(keyData);
    }

    [System.Security.Permissions.SecurityPermission(
        System.Security.Permissions.SecurityAction.Demand,
        Flags = System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)]
    protected override bool ProcessDataGridViewKey(KeyEventArgs e)
    {
        if (e.KeyCode == Keys.Enter)
        {
            return this.ProcessTabKey(e.KeyCode);
        }
        return base.ProcessDataGridViewKey(e);
    }
}

DataGridViewのイベントで制御する方法
VB.NET

Private Sub dgv1_KeyDown(sender As Object, _
    e As KeyEventArgs) Handles dgv1.KeyDown

    If e.KeyCode = Keys.Enter Then
        Dim dgv As DataGridView = DirectCast(sender, DataGridView)

        If (dgv.CurrentCellAddress.X = dgv.ColumnCount - 1) AndAlso _
            (dgv.CurrentCellAddress.Y = dgv.RowCount - 1) Then
            Return
        End If

        SendKeys.Send("{TAB}")
        e.Handled = True
    End If
End Sub

Private Sub dgv1_CellEndEdit(sender As Object, _
    e As DataGridViewCellEventArgs) Handles dgv1.CellEndEdit

    Dim dgv As DataGridView = DirectCast(sender, DataGridView)

    If (e.ColumnIndex = dgv.ColumnCount - 1) AndAlso _
        (e.RowIndex = dgv.RowCount - 1) Then
        Return
    End If

    If e.RowIndex < dgv.RowCount - 1 Then
        SendKeys.Send("{UP}")
    End If
    SendKeys.Send("{TAB}")
End Sub

C#

private void dgv1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Enter)
    {
        DataGridView dgv = (DataGridView)sender;

        if ((dgv.CurrentCellAddress.X == dgv.ColumnCount - 1) &&
            (dgv.CurrentCellAddress.Y == dgv.RowCount - 1))
        {
            return;
        }

        SendKeys.Send("{TAB}");
        e.Handled = true;
    }
}

private void dgv1_CellEndEdit(
    object sender, DataGridViewCellEventArgs e)
{
    DataGridView dgv = (DataGridView)sender;

    if ((e.ColumnIndex == dgv.ColumnCount - 1) &&
        (e.RowIndex == dgv.RowCount - 1))
    {
        return;
    }

    if (e.RowIndex < dgv.RowCount - 1)
    {
        SendKeys.Send("{UP}");
    }
    SendKeys.Send("{TAB}");
}