我有以下代码，以便我可以搜索目录以查找文件。现在我想为用户添加一种将输出保存到文本文件的方法吗？
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
namespace RecursiveSearchCS
{
public class Form1 : System.Windows.Forms.Form
{
internal System.Windows.Forms.Button btnSearch;
internal System.Windows.Forms.TextBox txtFile;
internal System.Windows.Forms.Label lblFile;
internal System.Windows.Forms.Label lblDirectory;
internal System.Windows.Forms.ListBox lstFilesFound;
internal System.Windows.Forms.ComboBox cboDirectory;
private System.ComponentModel.Container components = null;
public Form1()
{
InitializeComponent();
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.btnSearch = new System.Windows.Forms.Button();
this.txtFile = new System.Windows.Forms.TextBox();
this.lblFile = new System.Windows.Forms.Label();
this.lblDirectory = new System.Windows.Forms.Label();
this.lstFilesFound = new System.Windows.Forms.ListBox();
this.cboDirectory = new System.Windows.Forms.ComboBox();
this.SuspendLayout();
//
// btnSearch
//
this.btnSearch.Location = new System.Drawing.Point(608, 248);
this.btnSearch.Name = "btnSearch";
this.btnSearch.Size = new System.Drawing.Size(75, 23);
this.btnSearch.TabIndex = 0;
this.btnSearch.Text = "Search";
this.btnSearch.Click += new System.EventHandler(this.btnSearch_Click);
//
// txtFile
//
this.txtFile.Location = new System.Drawing.Point(8, 40);
this.txtFile.Name = "txtFile";
this.txtFile.Size = new System.Drawing.Size(120, 20);
this.txtFile.TabIndex = 4;
this.txtFile.Text = "*.*";
//
// lblFile
//
this.lblFile.Location = new System.Drawing.Point(8, 16);
this.lblFile.Name = "lblFile";
this.lblFile.Size = new System.Drawing.Size(144, 16);
this.lblFile.TabIndex = 5;
this.lblFile.Text = "Search for files containing:";
//
// lblDirectory
//
this.lblDirectory.Location = new System.Drawing.Point(8, 96);
this.lblDirectory.Name = "lblDirectory";
this.lblDirectory.Size = new System.Drawing.Size(120, 23);
this.lblDirectory.TabIndex = 3;
this.lblDirectory.Text = "Look In:";
//
// lstFilesFound
//
this.lstFilesFound.Location = new System.Drawing.Point(152, 8);
this.lstFilesFound.Name = "lstFilesFound";
this.lstFilesFound.Size = new System.Drawing.Size(528, 225);
this.lstFilesFound.TabIndex = 1;
//
// cboDirectory
//
this.cboDirectory.DropDownWidth = 112;
this.cboDirectory.Location = new System.Drawing.Point(8, 128);
this.cboDirectory.Name = "cboDirectory";
this.cboDirectory.Size = new System.Drawing.Size(120, 21);
this.cboDirectory.TabIndex = 2;
this.cboDirectory.Text = "ComboBox1";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(688, 277);
this.Controls.Add(this.btnSearch);
this.Controls.Add(this.txtFile);
this.Controls.Add(this.lblFile);
this.Controls.Add(this.lblDirectory);
this.Controls.Add(this.lstFilesFound);
this.Controls.Add(this.cboDirectory);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
/// <summary>
/// The main entry point for the application
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void btnSearch_Click(object sender, System.EventArgs e)
{
lstFilesFound.Items.Clear();
txtFile.Enabled = false;
cboDirectory.Enabled = false;
btnSearch.Text = "Searching...";
this.Cursor = Cursors.WaitCursor;
Application.DoEvents();
DirSearch(cboDirectory.Text);
btnSearch.Text = "Search";
this.Cursor = Cursors.Default;
txtFile.Enabled = true;
cboDirectory.Enabled = true;
}
private void Form1_Load(object sender, System.EventArgs e)
{
cboDirectory.Items.Clear();
foreach (string s in Directory.GetLogicalDrives())
{
cboDirectory.Items.Add(s);
}
cboDirectory.Text = "C:\\";
}
void DirSearch(string sDir)
{
try
{
foreach (string d in Directory.GetDirectories(sDir))
{
foreach (string f in Directory.GetFiles(d, txtFile.Text))
{
lstFilesFound.Items.Add(f);
}
DirSearch(d);
}
}
catch (System.Exception excpt)
{
Console.WriteLine(excpt.Message);
}
}
}
}
以下是Application Open的截图：
我要添加一个保存按钮，在点击时保存到特定位置，我将如何进行此操作。
答案 0 :(得分：0)
我假设它是您要保存到文本文件的已找到文件的列表，在保存事件上如何（粗略代码未经过广泛测试）？
using (FileStream fs = new FileStream("c:\\files.txt", FileMode.Create, FileAccess.Write))
{
using (StreamWriter sw = new StreamWriter(fs))
{
foreach (string item in lstFilesFound.Items)
{
sw.WriteLine(item);
}
}
}
答案 1 :(得分：0)
如果我理解正确，请使用简单的I / O操作。
using(StreamWriter writer = new StreamWriter("debug.txt", true))
{
foreach (string item in lstFilesFound.Items)
{
writer.WriteLine(item.ToString());
}
}
几个额外的指针：
在DirSearch中，为Directory.GetDirectories(sDir)创建一个变量。你现在的代码导致这个东西在每个循环中计算。在其他领域寻找更类似的重构代码。
var dirs = Directory.GetDirectories(sDir);
foreach (string d in dirs)
{
var files = Directory.GetFiles(d, txtFile.Text);
foreach (string f in files)
{
lstFilesFound.Items.Add(f);
}
DirSearch(d);
}
希望它有所帮助。