如何实现DataGridView中的行的拖动?

Question

想用拖动的方式,改变DataGridView中的行的位置,要如何实现呢?  还请高手赐教!! 先说谢谢啦!!!

Answer 1

to wshuangminlg(asp.net 2.0 群：31412938（群主）):就是交换行的顺序啊,怎么不可以呢?

Answer 2

namespace ArrayMarge
{
    partial class Form1
    {
        /// <summary>
        /// 必要なデザイナ変数です。
        /// </summary>
        private System.ComponentModel.IContainer components = null;        /// <summary>
        /// 使用中のリソースをすべてクリーンアップします。
        /// </summary>
        /// <param name="disposing">マネージ リソースが破棄される場合 true、破棄されない場合は false です。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }        #region Windows フォーム デザイナで生成されたコード        /// <summary>
        /// デザイナ サポートに必要なメソッドです。このメソッドの内容を
        /// コード エディタで変更しないでください。
        /// </summary>
        private void InitializeComponent()
        {
            this.dataGridView1 = new System.Windows.Forms.DataGridView();
            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
            this.SuspendLayout();
            // 
            // dataGridView1
            // 
            this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            this.dataGridView1.Location = new System.Drawing.Point(12, 12);
            this.dataGridView1.MultiSelect = false;
            this.dataGridView1.Name = "dataGridView1";
            this.dataGridView1.RowTemplate.Height = 21;
            this.dataGridView1.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;
            this.dataGridView1.Size = new System.Drawing.Size(514, 242);
            this.dataGridView1.TabIndex = 1;
            this.dataGridView1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.dataGridView1_MouseMove);
            this.dataGridView1.CellMouseMove += new System.Windows.Forms.DataGridViewCellMouseEventHandler(this.dataGridView1_CellMouseMove_1);
            this.dataGridView1.CellMouseUp += new System.Windows.Forms.DataGridViewCellMouseEventHandler(this.dataGridView1_CellMouseUp);
            this.dataGridView1.CellMouseEnter += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView1_CellMouseEnter);
            this.dataGridView1.CellContentClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView1_CellContentClick);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(557, 266);
            this.Controls.Add(this.dataGridView1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
            this.ResumeLayout(false);        }        #endregion        private System.Windows.Forms.DataGridView dataGridView1;
    }
}

Answer 3

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data;
namespace ArrayMarge
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }                 private void Form1_Load(object sender, EventArgs e)
        {
            DataTable dt=new DataTable();            dt.Columns.Add("c1");
            dt.Columns.Add("c2");            DataRow dr;            dr = dt.NewRow();
            dr[0]="r11";
            dr[1]="r12";
            dt.Rows.Add(dr);
            dr = dt.NewRow();
            dr[0] = "r21";
            dr[1] = "r22";
            dt.Rows.Add(dr);            dr = dt.NewRow();
            dr[0] = "r31";
            dr[1] = "r32";
            dt.Rows.Add(dr);            dr = dt.NewRow();
            dr[0] = "r41";
            dr[1] = "r42";
            dt.Rows.Add(dr);                        this.dataGridView1.DataSource = dt;
        
        }        private void ChargeRow(int indexFrom, int indexTo)
        {
            if (indexFrom == indexTo)
            {
                return;
            }            DataTable dt;
            dt=(DataTable)this.dataGridView1.DataSource ; 
            if (indexFrom>=0 && indexFrom<dt.Rows.Count )
            {
                if (indexTo >= 0 && indexTo < dt.Rows.Count)
                {
                    DataRow dr = dt.NewRow();                    CopyRow(dt.Rows[indexFrom] , dr  );
                    CopyRow(dt.Rows[indexTo] , dt.Rows[indexFrom]  );
                    CopyRow(dr , dt.Rows[indexTo] );
                    dr = null;
                }
            }             
             
        }
        private void CopyRow(DataRow drFrom,DataRow drTo)
        {
            int i = 0;
            foreach (object var in drFrom.ItemArray )
            {
                drTo[i++] = var;
                
            }
        }
              private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {        }        private void dataGridView1_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left  )
            {
                 
 
            }
        }        private void dataGridView1_CellMouseMove(object sender, DataGridViewCellMouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.ChargeRow(this.dataGridView1.SelectedRows[0].Index, e.RowIndex);
            }
        }        private void dataGridView1_CellMouseUp(object sender, DataGridViewCellMouseEventArgs e)
        {
            this.ChargeRow(this.dataGridView1.SelectedRows[0].Index, e.RowIndex);
            this.dataGridView1.Rows[e.RowIndex].Selected = true;
        }        private void dataGridView1_CellMouseMove_1(object sender, DataGridViewCellMouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left )
            {
                
                if (e.RowIndex > this.dataGridView1.SelectedRows[0].Index)
                {
                    this.dataGridView1.Cursor = Cursors.PanSouth;
                }
                else if (e.RowIndex < this.dataGridView1.SelectedRows[0].Index)
                {
                    this.dataGridView1.Cursor = Cursors.PanNorth;
                }
                else
                {
                    this.dataGridView1.Cursor = Cursors.Default;
                }                
            }
            else
            {
                this.dataGridView1.Cursor = Cursors.Default;
            }
        }        private void dataGridView1_CellMouseEnter(object sender, DataGridViewCellEventArgs e)
        {
            
           
        }
    }
}

Answer 4

首先在DragEnter标记你选中的行然后在DragDrop得到要拖放的位置，然后改变DataGridView的DataSource的行的位置后再绑定DataGridView

Answer 5

How can I move rows by dragging the row header cell?
http://www.syncfusion.com/FAQ/WindowsForms/FAQ_c44c.aspx#q832q这个也适合datagridview。