C#中拖放操作 C#高手请进

显示全部楼层 · 2010-10-26 15:44:05

有两个TextBox控件TextBox1和TextBox2，要从TextBox1把文字拖放到TextBox2我的代码怎么实现不了，请高人解答
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace 拖放操作
{

public partial class Form1 : Form

{

const byte CtrlMask = 8;

public Form1()

{

InitializeComponent();

}

private void textBox1_MouseDoubleClick(object sender, MouseEventArgs e)

{

textBox1.SelectAll();

string s = textBox1.SelectedText;

DoDragDrop(s, DragDropEffects.Move | DragDropEffects.Copy);

}

private void textBox2_DragEnter(object sender, DragEventArgs e)

{

if (e.Data.GetDataPresent(DataFormats.Text))

{

if ((e.KeyState & CtrlMask) == CtrlMask)

{

e.Effect = DragDropEffects.Copy;

}

else

{

e.Effect = DragDropEffects.Move;

}

}

else

{

e.Effect = DragDropEffects.None;

}

}

private void textBox2_DragDrop(object sender, DragEventArgs e)

{

//textBox2.Text = e.Data.GetData(DataFormats.Text).ToString();

}

}
}

千问 · 2010-10-26 15:44:05

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;namespace WindowsApplication1{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();

千问 · 2010-10-26 15:44:05

你可以在类初始化时声明一个字符串 str 来临时存储要转移的数据。当双击 tbox1 时把里面的字符赋值给 str，当执行 tbox2 的拖放动作后把 tbox2的 text 赋值成 str。逻辑不清晰，不了解事件机制，copy代码是很难进步的

千问 · 2010-10-26 15:44:05

你写的东西出什么BUG了？