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C# Get All Files from Directory and Subdirectories and Display it in Gridview

Aug 26, 2013
Introduction:

Here I will explain how to get all files from directory and subdirectories in C# and display or bind to Gridview in asp.net using C#, VB.NET.

Description:

In previous articles I explained create zip files in asp.net, Delete files from uploaded folder in asp.net, create/delete directory in asp.net, Joins in SQL Server and many articles relating to Gridview, SQL , jQuery , asp.net, C#, VB.NET. Now I will explain how to get all files from directory and subdirectories and bind to Gridview in asp.net using C#, VB.NET.

To display all files from folder and subfolders in Gridview we need to write the code like as shown below

C# Code


// Bind Data to Gridview
protected void BindGridview()
{
string strpath = @"E:\Internet Tips\";
string[] folders = Directory.GetFiles(strpath, "*", SearchOption.AllDirectories);
gvDetails.DataSource = folders;
gvDetails.DataBind();
}
VB Code


' Bind Data to Gridview
Protected Sub BindGridview()
Dim strpath As String = "E:\Internet Tips\"
Dim folders As String() = Directory.GetFiles(strpath, "*", SearchOption.AllDirectories)
gvDetails.DataSource = folders
gvDetails.DataBind()
End Sub

If you want to check it in complete example write the following code


<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Get files from folder & subfolder & display it in gridview in c#.net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="btnGetFiles" Text="Get Files From Folder & Sub Folders" runat="server" onclick="btnGetFiles_Click" />
<asp:GridView ID="gvDetails" CellPadding="5" runat="server">
<HeaderStyle BackColor="#df5015" Font-Bold="true" ForeColor="White" />
</asp:GridView>
</div>
</form>
</body>
</html>
Now in code behind add the following namespaces

C# Code


using System;
using System.IO;
Once you add namespaces write the following code in code behind


// Get files in folder
protected void btnGetFiles_Click(object sender, EventArgs e)
{
BindGridview();
}
// Bind Data to Gridview
protected void BindGridview()
{
string strpath = @"E:\Internet Tips\";
string[] folders = Directory.GetFiles(strpath, "*", SearchOption.AllDirectories);
gvDetails.DataSource = folders;
gvDetails.DataBind();
}
VB.NET Code


Imports System.IO
Partial Class VBCode
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
End Sub
' insert files in folder
Protected Sub btnGetFiles_Click(ByVal sender As Object, ByVal e As EventArgs)
BindGridview()
End Sub
' Bind Data to Gridview
Protected Sub BindGridview()
Dim strpath As String = "E:\Internet Tips\"
Dim folders As String() = Directory.GetFiles(strpath, "*", SearchOption.AllDirectories)
gvDetails.DataSource = folders
gvDetails.DataBind()
End Sub
End Class
Demo

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2 comments :

Amanuddin Khan said...

sir,code is working fine for me,but i want to read only .jpg or .png file

Tabrez Mohamad said...

Change string[] folders = Directory.GetFiles(strpath, "*", SearchOption.AllDirectories);

To
string[] folders = Directory.GetFiles(strpath, ".jpeg", SearchOption.AllDirectories);

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