Copy a file programmatically
.Net framework File.Copy(String, String) method allow us to copy an existing file to a new file. overwriting a file of the same
name is not allowed in this overloaded method. File class Copy() method exists in System.IO namespace.
Copy(String, String) method has two required parameters named 'sourceFileName' and 'destFileName'. both parameters value data type is System.String. 'sourceFileName' parameter represents the file to copy. 'destFileName' parameter represents the name of the destination file. this parameter value cannot be a directory or an existing file.
File.Copy(String, String) method throw UnauthorizedAccessException exception, if the caller does not have the required permission. method throw ArgumentNullException, if the 'sourceFileName' or 'destFileName' is null. it throw FileNotFoundException, if the 'sourceFileName' was not found. method also throw ArgumentException, PathTooLongException, DirectoryNotFoundException, IOException and NotSupportedException.
.Net framework File.Copy(String, String, Boolean) overloaded method allow us to copy an existing file to a new file and overwriting a file of the same name is allowed.
the following asp.net c# example code demonstrate us how can we copy a file programmatically at run time in an asp.net application.
Copy(String, String) method has two required parameters named 'sourceFileName' and 'destFileName'. both parameters value data type is System.String. 'sourceFileName' parameter represents the file to copy. 'destFileName' parameter represents the name of the destination file. this parameter value cannot be a directory or an existing file.
File.Copy(String, String) method throw UnauthorizedAccessException exception, if the caller does not have the required permission. method throw ArgumentNullException, if the 'sourceFileName' or 'destFileName' is null. it throw FileNotFoundException, if the 'sourceFileName' was not found. method also throw ArgumentException, PathTooLongException, DirectoryNotFoundException, IOException and NotSupportedException.
.Net framework File.Copy(String, String, Boolean) overloaded method allow us to copy an existing file to a new file and overwriting a file of the same name is allowed.
the following asp.net c# example code demonstrate us how can we copy a file programmatically at run time in an asp.net application.
FileCopy.aspx
<%@ Page Language="C#" %>
<%@ Import Namespace="System.IO" %>
<!DOCTYPE html>
<script runat="server">
protected void Page_Load(object sender, System.EventArgs e) {
if (!this.IsPostBack)
{
string file = Request.PhysicalApplicationPath + "parrot.jpg";
string fileDes = Request.PhysicalApplicationPath + "Images\\parrot.jpg";
TextBox1.Text = file;
TextBox2.Text = fileDes;
}
}
protected void Button1_Click(object sender, System.EventArgs e) {
try
{
File.Copy(TextBox1.Text,TextBox2.Text);
Label1.Text = "File copied";
}
catch(Exception ex)
{
Label1.Text = "an error occured!<br/>"+ ex.ToString();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>How to copy file in asp.net programmatically</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:Green">asp.net example: file copy</h2>
<asp:Label
ID="Label1"
runat="server"
Font-Size="Larger"
ForeColor="Crimson"
>
</asp:Label>
<br /><br />
<asp:Label
ID="Label2"
runat="server"
Text="Source File"
ForeColor="OrangeRed"
Font-Bold="true"
>
</asp:Label>
<asp:TextBox
ID="TextBox1"
runat="server"
ReadOnly="true"
BackColor="OrangeRed"
ForeColor="AliceBlue"
>
</asp:TextBox>
<br />
<asp:Label
ID="Label3"
runat="server"
Text="Destination File"
ForeColor="OrangeRed"
Font-Bold="true"
>
</asp:Label>
<asp:TextBox
ID="TextBox2"
runat="server"
ReadOnly="true"
BackColor="OrangeRed"
ForeColor="AliceBlue"
Width="250"
>
</asp:TextBox>
<br /><br />
<asp:Button
ID="Button1"
runat="server"
Font-Bold="true"
ForeColor="IndianRed"
Text="Copy File"
OnClick="Button1_Click"
/>
</div>
</form>
</body>
</html>




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