编程实现双击某个文件用指定程序打开代码,CSharp代码库,德仔网

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【CSharp】编程实现双击某个文件用指定程序打开

作者:Dezai.CN / 发布于2012/8/1/ 443

编程实现双击某个文件用指定程序打开

<div>using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;</div>
<div>
namespace OpenFile
{
 public partial class MainForm : Form
 {</div>
<div> public MainForm()
 {
 InitializeComponent();
 }
<div> public enum ShowCommands : int
 {
 SW_HIDE = 0,
 SW_SHOWNORMAL = 1,
 SW_NORMAL = 1,
 SW_SHOWMINIMIZED = 2,
 SW_SHOWMAXIMIZED = 3,
 SW_MAXIMIZE = 3,
 SW_SHOWNOACTIVATE = 4,
 SW_SHOW = 5,
 SW_MINIMIZE = 6,
 SW_SHOWMINNOACTIVE = 7,
 SW_SHOWNA = 8,
 SW_RESTORE = 9,
 SW_SHOWDEFAULT = 10,
 SW_FORCEMINIMIZE = 11,
 SW_MAX = 11
 }
 [DllImport("shell32.dll")]
 static extern IntPtr ShellExecute(
 IntPtr hwnd,
 string lpOperation,
 string lpFile,
 string lpParameters,
 string lpDirectory,
 ShowCommands nShowCmd);</div>
<div>
 private void btnSelect_Click(object sender, EventArgs e)
 {
 OpenFileDialog openFileDialog=new OpenFileDialog();
 openFileDialog.InitialDirectory="c:\\";//注意这里写路径时要用c:\\而不是c:\
 openFileDialog.Filter="文本文件|*.*|C#文件|*.cs|所有文件|*.*";
 openFileDialog.RestoreDirectory=true;
 openFileDialog.FilterIndex=1;
 if (openFileDialog.ShowDialog() == DialogResult.OK)
 {
 this.tBFile.Text = openFileDialog.FileName;
 }
 }
<div> private void btnOpen_Click(object sender, EventArgs e)
 {
 if (!string.IsNullOrEmpty(this.tBFile.Text))
 {
 String filepath;
 filepath = this.tBFile.Text;
 //ShellExecute(IntPtr.Zero, "open", filepath, "", "", ShowCommands.SW_SHOWNORMAL);
 System.Diagnostics.Process.Start(filepath);</div>
<div> }
 else
 {
 MessageBox.Show("Please Select File");
 }
 }
 }
}

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