How To Upload File in your Application Folder in Asp.Net

How To Upload File in your Application Folder in Asp.net

Here is the code to upload a file in your application folder.

Aspx Page:-

<div>

        <asp:FileUpload ID="fu_1" runat="server"></asp:FileUpload>

        <asp:Button ID="btn_upload" runat="server" Text="Upload" 

            onclick="btn_upload_Click" />

            <br />

            <asp:Label runat="server" ID="lblmsz" Font-Bold="true"></asp:Label>

    </div>

CS Page:-

Name Space Used:-

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.IO;

using System.Drawing;

Upload Button Code:-

protected void btn_upload_Click(object sender, EventArgs e)

        {

            if (fu_1.HasFile)

            {

                if (CheckFileType(fu_1.FileName))

                {

                    string uploadpath = "~/Files/" + fu_1.FileName;

                    fu_1.SaveAs(MapPath(uploadpath));

                    lblmsz.Text = "File uploaded successfully";

                    lblmsz.ForeColor = Color.Green;

                }

                else

                {

                    lblmsz.Text = "Invalid file selected";

                    lblmsz.ForeColor = Color.Red;

                }

            }

            else

            {

                lblmsz.Text = "Please Select a file";

                lblmsz.ForeColor = Color.Red;

            }

        }

Check File Type Code:-

bool CheckFileType(string fileName)

        {

            string ext = Path.GetExtension(fileName);

            switch (ext.ToLower())

            {

                case ".gif":

                    return true;

                case ".png":

                    return true;

                case ".jpg":

                    return true;

                case ".jpeg":

                    return true;

                default:

                    return false;

            }

        }

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