check if files exist in directory and subdirectories

Question

_{Wednesday, June 26, 2013 4:15 PM}

how can I check if file exists ,but by reading the file names from a list box

All replies (3)

_{Wednesday, June 26, 2013 4:28 PM ✅Answered}

You can use System.IO.File.Exists(filepath) method to return a bool if the file exists.

You can use the list box's .Items collection to get each list box entry.

foreach(string path in myListBox.Items) {   
  if(!System.IO.File.Exists(path)) {     
     MessageBox.Show("The file " + path + " does not exist");
  }
}

_{Wednesday, June 26, 2013 4:29 PM ✅Answered}

Try code below

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;using System.IO;namespace WindowsFormsApplication1{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();            List<string> files = Directory.GetFiles(@"c:\temp").ToList();            //fill listbox with file names            listBox1.Items.AddRange(files.ToArray());        }        private void button1_Click(object sender, EventArgs e)        {            foreach (string filename in listBox1.Items)            {                if (File.Exists(filename))                {                    Console.WriteLine("File Exists : {0}", filename);                }                else                {                    Console.WriteLine("File Does not Exists : {0}", filename);                }            }            Console.ReadLine();        }    }}

jdweng

_{Wednesday, June 26, 2013 4:45 PM ✅Answered}

Georges : Hope this helps

  bool fileExists = false;
  //change yourPath and fileName accordingly
  string yourPath = @"c:\temp\";
  string fileName = listBox1.SelectedItem.ToString();  
  if (Directory.GetFiles(yourPath, fileName, SearchOption.AllDirectories).Count() > 0) fileExists = true;
  //your code if file Exists = true