using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Security;
namespace mygrep
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label lblResults;
private System.Windows.Forms.TextBox txtFiles;
private System.Windows.Forms.Label lblFiles;
private System.Windows.Forms.Button btnSearch;
private System.Windows.Forms.CheckBox ckInclude;
private System.Windows.Forms.TextBox txtResults;
private System.Windows.Forms.Label lblSearchText;
private System.Windows.Forms.Label lblDir;
private System.Windows.Forms.Button btnBrowse;
private System.Windows.Forms.TextBox txtDir;
private System.Windows.Forms.TextBox txtSearchText;
//ArrayList keeping the Files
ArrayList m_arrFiles = new ArrayList();
private System.Windows.Forms.CheckBox chkNotListAll;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (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.lblResults = new System.Windows.Forms.Label();
this.btnBrowse = new System.Windows.Forms.Button();
this.txtResults = new System.Windows.Forms.TextBox();
this.txtFiles = new System.Windows.Forms.TextBox();
this.ckInclude = new System.Windows.Forms.CheckBox();
this.txtDir = new System.Windows.Forms.TextBox();
this.txtSearchText = new System.Windows.Forms.TextBox();
this.lblDir = new System.Windows.Forms.Label();
this.btnSearch = new System.Windows.Forms.Button();
this.lblSearchText = new System.Windows.Forms.Label();
this.lblFiles = new System.Windows.Forms.Label();
this.chkNotListAll = new System.Windows.Forms.CheckBox();
this.SuspendLayout();
//
// lblResults
//
this.lblResults.Location = new System.Drawing.Point(20, 112);
this.lblResults.Name = "lblResults";
this.lblResults.Size = new System.Drawing.Size(72, 14);
this.lblResults.TabIndex = 10;
this.lblResults.Text = "结果";
//
// btnBrowse
//
this.btnBrowse.Location = new System.Drawing.Point(256, 23);
this.btnBrowse.Name = "btnBrowse";
this.btnBrowse.Size = new System.Drawing.Size(82, 28);
this.btnBrowse.TabIndex = 2;
this.btnBrowse.Text = "浏览...";
this.btnBrowse.Click += new System.EventHandler(this.btnBrowse_Click);
//
// txtResults
//
this.txtResults.BackColor = System.Drawing.SystemColors.Info;
this.txtResults.Cursor = System.Windows.Forms.Cursors.Arrow;
this.txtResults.Location = new System.Drawing.Point(15, 128);
this.txtResults.Multiline = true;
this.txtResults.Name = "txtResults";
this.txtResults.ReadOnly = true;
this.txtResults.ScrollBars = System.Windows.Forms.ScrollBars.Both;
this.txtResults.Size = new System.Drawing.Size(482, 227);
this.txtResults.TabIndex = 9;
this.txtResults.Text = "";
this.txtResults.WordWrap = false;
//
// txtFiles
//
this.txtFiles.BackColor = System.Drawing.SystemColors.Window;
this.txtFiles.Location = new System.Drawing.Point(15, 74);
this.txtFiles.Name = "txtFiles";
this.txtFiles.Size = new System.Drawing.Size(93, 21);
this.txtFiles.TabIndex = 5;
this.txtFiles.Text = "";
this.txtFiles.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtFiles_KeyDown);
//
// ckInclude
//
this.ckInclude.Location = new System.Drawing.Point(348, 32);
this.ckInclude.Name = "ckInclude";
this.ckInclude.Size = new System.Drawing.Size(124, 19);
this.ckInclude.TabIndex = 3;
this.ckInclude.Text = "包含子目录";
//
// txtDir
//
this.txtDir.BackColor = System.Drawing.SystemColors.Window;
this.txtDir.Location = new System.Drawing.Point(15, 28);
this.txtDir.Name = "txtDir";
this.txtDir.Size = new System.Drawing.Size(231, 21);
this.txtDir.TabIndex = 1;
this.txtDir.Text = "";
this.txtDir.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtDir_KeyDown);
this.txtDir.TextChanged += new System.EventHandler(this.txtDir_TextChanged);
//
// txtSearchText
//
this.txtSearchText.BackColor = System.Drawing.SystemColors.Window;
this.txtSearchText.Location = new System.Drawing.Point(123, 74);
this.txtSearchText.Name = "txtSearchText";
this.txtSearchText.Size = new System.Drawing.Size(261, 21);
this.txtSearchText.TabIndex = 7;
this.txtSearchText.Text = "";
this.txtSearchText.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtSearchText_KeyDown);
this.txtSearchText.TextChanged += new System.EventHandler(this.txtSearchText_TextChanged);
//
// lblDir
//
this.lblDir.Location = new System.Drawing.Point(20, 14);
this.lblDir.Name = "lblDir";
this.lblDir.Size = new System.Drawing.Size(62, 14);
this.lblDir.TabIndex = 0;
this.lblDir.Text = "目录";
//
// btnSearch
//
this.btnSearch.Enabled = false;
this.btnSearch.Location = new System.Drawing.Point(399, 69);
this.btnSearch.Name = "btnSearch";
this.btnSearch.Size = new System.Drawing.Size(98, 28);
this.btnSearch.TabIndex = 8;
this.btnSearch.Text = "搜索";
this.btnSearch.Click += new System.EventHandler(this.btnSearch_Click);
//
// lblSearchText
//
this.lblSearchText.Location = new System.Drawing.Point(128, 60);
this.lblSearchText.Name = "lblSearchText";
this.lblSearchText.Size = new System.Drawing.Size(97, 14);
this.lblSearchText.TabIndex = 6;
this.lblSearchText.Text = "搜索文字";
//
// lblFiles
//
this.lblFiles.Location = new System.Drawing.Point(20, 60);
this.lblFiles.Name = "lblFiles";
this.lblFiles.Size = new System.Drawing.Size(103, 14);
this.lblFiles.TabIndex = 4;
this.lblFiles.Text = "文件扩展名";
//
// chkNotListAll
//
this.chkNotListAll.Location = new System.Drawing.Point(80, 104);
this.chkNotListAll.Name = "chkNotListAll";
this.chkNotListAll.Size = new System.Drawing.Size(216, 24);
this.chkNotListAll.TabIndex = 11;
this.chkNotListAll.Text = "只显示包含搜索文字的文件";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(518, 375);
this.Controls.Add(this.chkNotListAll);
this.Controls.Add(this.lblResults);
this.Controls.Add(this.txtFiles);
this.Controls.Add(this.lblFiles);
this.Controls.Add(this.btnSearch);
this.Controls.Add(this.ckInclude);
this.Controls.Add(this.txtResults);
this.Controls.Add(this.lblSearchText);
this.Controls.Add(this.lblDir);
this.Controls.Add(this.btnBrowse);
this.Controls.Add(this.txtDir);
this.Controls.Add(this.txtSearchText);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "文件内容搜索器";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void txtFiles_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
if(e.KeyCode==Keys.Enter && btnSearch.Enabled==true)
{
Search();
}
}
private void txtDir_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
if(e.KeyCode==Keys.Enter && btnSearch.Enabled==true)
{
Search();
}
}
private void txtSearchText_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
if(e.KeyCode==Keys.Enter && btnSearch.Enabled==true)
{
Search();
}
}
private void btnSearch_Click(object sender, System.EventArgs e)
{
Search();
}
private void btnBrowse_Click(object sender, System.EventArgs e)
{
OpenFileDialog fdlg = new OpenFileDialog();
fdlg.Title = "Select a file";
//fdlg.InitialDirectory = DirectoryInfo.CurrentDirectory;
fdlg.Filter = "All files (*.*)|*.*";
if(fdlg.ShowDialog() == DialogResult.OK)
{
String strPath = fdlg.FileName;
//File Extension
String strExt;
//Get the Directory and file extension
FileInfo f = new FileInfo(strPath);
txtDir.Text = f.DirectoryName;
strExt = f.Extension;
//Eliminate the first '.'
if(strExt != "")
strExt = strExt.Substring(1);
txtFiles.Text = strExt;
}
}
private void txtDir_TextChanged(object sender, System.EventArgs e)
{
VerifySearchBtn();
}
private void txtSearchText_TextChanged(object sender, System.EventArgs e)
{
VerifySearchBtn();
}
protected void VerifySearchBtn()
{
if(txtDir.Text != "" && txtSearchText.Text != "")
{
btnSearch.Enabled = true;
}
else
btnSearch.Enabled = false;
}
protected void GetFiles(String strDir, String strExt, bool bRecursive)
{
DirectoryInfo dir = new DirectoryInfo(strDir);
FileInfo[] fileList = dir.GetFiles("*." + strExt);
for(int i=0; i<fileList.Length; i++)
{
if(fileList[i].Exists)
m_arrFiles.Add(strDir + "\\" + fileList[i].Name);
}
if(bRecursive==true)
{
//Get recursively from subdirectories
DirectoryInfo[] dirList = dir.GetDirectories();
for(int i=0; i<dirList.Length; i++)
{
GetFiles(strDir + "\\" + dirList[i].Name, strExt, bRecursive);
}
}
}
//Search Function
protected void Search()
{
String strDir = txtDir.Text;
//Check First if the Selected Directory exists
DirectoryInfo dir = new DirectoryInfo(strDir);
if(!dir.Exists)
MessageBox.Show("Directory doesn't exist!", "Win Grep Error");
else
{
Text = "文件内容搜索器 " + strDir;
Cursor = System.Windows.Forms.Cursors.WaitCursor;
//File Extension
String strExt = txtFiles.Text;
if(strExt != "")
if(strExt.StartsWith("."))
{
//Eliminate the first '.'
strExt = strExt.Substring(1);
}
//First empty the list
m_arrFiles.Clear();
//Create recursively a list with all the files complying with the criteria
GetFiles(strDir, strExt, ckInclude.Checked);
//Now all the Files are in the ArrayList, open each one
//iteratively and look for the search string
String strSearch = txtSearchText.Text;
String strResults = "";
String strLine;
int iLine;
IEnumerator enm = m_arrFiles.GetEnumerator();
while(enm.MoveNext())
{
try
{
StreamReader sr = File.OpenText((string)enm.Current);
iLine = 0;
string strResultsInThisFile = "";
while((strLine = sr.ReadLine())!=null)
{
iLine++;
//Search the Line for the Search Text
if(strLine.IndexOf(strSearch) != -1)
{
//Add the Line to Results string
strResultsInThisFile += " " + iLine + ": " + strLine + "\r\n";
}
}
sr.Close();
if(chkNotListAll.Checked)
{
if(strResultsInThisFile.Length > 0)
{
strResults += "\r\n" + (string)enm.Current + ":\r\n";
strResults += strResultsInThisFile;
}
}
else
{
strResults += "\r\n" + (string)enm.Current + ":\r\n";
strResults += strResultsInThisFile;
}
}
catch(SecurityException)
{
strResults += "\r\n" + (string)enm.Current + ": Security Exception\r\n\r\n";
}
//catch(AccessException)
//{
// strResults += "\r\n" + (string)enm.Current + ": Access Exception\r\n";
//}
}
txtResults.Text = strResults;
Cursor = System.Windows.Forms.Cursors.Arrow;
}
}
}
}
请问主程序里面的那些事件是什么意思呢？？？？？？？
刚学，很菜，请指导！
