当我们按 Enter 键时，如何将 Datagridview 编辑控件转移到所选行的下一个单元格

Question

我在dataGridView1_SelectionChanged 和dataGridView1_CellEndEdit 事件中使用此代码。它可以正常工作，但是当我首先按 enter 键时，编辑控件焦点会跳转到所选列的新行，然后自动返回上一行并选择下一个单元格。但是我想直接转移到所选行的下一个单元格。

更多详情，我附上一张图片。

请帮助我。我为此尝试了很多逻辑。

这是我的代码

try
{
    if (MouseButtons != 0) return;

    if (celWasEndEdit != null && dataGridView1.CurrentCell != null)
    {
        // if we are currently in the next line of last edit cell
        if (dataGridView1.CurrentCell.RowIndex == celWasEndEdit.RowIndex + 1 &&
            dataGridView1.CurrentCell.ColumnIndex == celWasEndEdit.ColumnIndex)
        {
            int iColNew;
            int iRowNew = 0;
            if (celWasEndEdit.ColumnIndex >= dataGridView1.ColumnCount - 1)
            {
                iColNew = 0;
                iRowNew = dataGridView1.CurrentCell.RowIndex;
            }
            //if we Edit the cell and press Enter the focus on the next cell
            else
            {
                iColNew = celWasEndEdit.ColumnIndex + 1;
                iRowNew = celWasEndEdit.RowIndex;
            }
            dataGridView1.CurrentCell = dataGridView1[iColNew, iRowNew];
        }
    }
    celWasEndEdit = null;
}
catch (Exception ex)
{
    MessageBox.Show(ex.ToString());
}

Answer 1

创建一个从 DataGridView 派生的扩展控件并覆盖 ProcessDialogKey() 方法。

有关更多信息，请参阅here。

测试来源

用户控制： 使用 System.Windows.Forms；

namespace DGNextEdit
{
    public class UpdatedDataGridView : DataGridView
    {
        protected override bool ProcessDialogKey(Keys keyData)
        {
            if (keyData == Keys.Enter)
            {
                var col = CurrentCell.ColumnIndex;
                var row = CurrentCell.RowIndex;
                if (col >= ColumnCount - 1 && row < RowCount - 1)
                    row++;

                CurrentCell = this[col < ColumnCount - 1 ? col + 1 : 0, row];
                return true;
            }
            return base.ProcessDialogKey(keyData);
        }
    }
}

测试表格：

using System.Windows.Forms;
namespace DGNextEdit
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
    }
}

测试表单代码隐藏：

namespace DGNextEdit
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (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.dataGridView1 = new DGNextEdit.UpdatedDataGridView();
            this.Column1 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            this.Column2 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            this.Column3 = new System.Windows.Forms.DataGridViewTextBoxColumn();
            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
            this.SuspendLayout();
            // 
            // dataGridView1
            // 
            this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
            this.Column1,
            this.Column2,
            this.Column3});
            this.dataGridView1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.dataGridView1.Location = new System.Drawing.Point(0, 0);
            this.dataGridView1.Name = "dataGridView1";
            this.dataGridView1.Size = new System.Drawing.Size(465, 261);
            this.dataGridView1.TabIndex = 0;
            // 
            // Column1
            // 
            this.Column1.HeaderText = "Column1";
            this.Column1.Name = "Column1";
            // 
            // Column2
            // 
            this.Column2.HeaderText = "Column2";
            this.Column2.Name = "Column2";
            // 
            // Column3
            // 
            this.Column3.HeaderText = "Column3";
            this.Column3.Name = "Column3";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(465, 261);
            this.Controls.Add(this.dataGridView1);
            this.Name = "Form1";
            this.Text = "Form1";
            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
            this.ResumeLayout(false);

        }

        #endregion

        private UpdatedDataGridView dataGridView1;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column1;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column2;
        private System.Windows.Forms.DataGridViewTextBoxColumn Column3;
    }
}