Read uploaded file extension and based on that save to folder using C# in ASP.Net

AnkitPal

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User: AnkitPal
Posted: on Aug 09, 2017 04:39 AM
Forum: Data Controls
Answer: 1
Views: 3091

Dear Programmer I want to upload photo ans sign.

I write code for read image extension both images (photo ans sign), when i am upload both images than this code work fine, but whne i am upload one image and another file than this code is not working properly, my code is below as -

string file_ext = Path.GetExtension(FileUpload_Photo.PostedFile.FileName);
            string file_ext1 = Path.GetExtension(FileUpload_Sign.PostedFile.FileName);
            if (file_ext.ToLower() == ".jpg" || file_ext.ToLower() == ".bmp" || file_ext.ToLower() == ".png" ||
                file_ext1.ToLower() == ".jpg" || file_ext1.ToLower() == ".bmp" || file_ext1.ToLower() == ".png")
            {
                //Save Image Name
                FileUpload_Photo.SaveAs(Server.MapPath(virtualFolder) + "\\" + lbl_UniqueId.Text + "" + file_ext);
                FileUpload_Sign.SaveAs(Server.MapPath(virtualFolder1) + "\\" + lbl_UniqueId.Text + "S" + file_ext1);
                //Set Image Name
                string photo = lbl_UniqueId.Text + "" + file_ext;
                string sign = lbl_UniqueId.Text + "S" + file_ext1;
                //Target Folder
                string physicalFolder = Server.MapPath(virtualFolder);
                string physicalFolder1 = Server.MapPath(virtualFolder1);
                //Retrive Images
                emp_img.Visible = true;
                emp_sign.Visible = true;
                emp_img.ImageUrl = Server.MapPath(virtualFolder) + @"\" + lbl_UniqueId.Text + "" + file_ext;
                emp_sign.ImageUrl = Server.MapPath(virtualFolder1) + @"\" + lbl_UniqueId.Text + "" + file_ext1;

//connectionsting

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zameer

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ANSWER
User: zameer
Replied: on Aug 09, 2017 06:24 AM
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Hi AnkitPal,

You should change the code like below. This code allow .jpg, .bmp, .png format only to upload.

string virtualFolder = "~\\Photo";
string virtualFolder1 = "~\\Sign";
string file_ext = Path.GetExtension(FileUpload_Photo.PostedFile.FileName).ToLower();
string file_ext1 = Path.GetExtension(FileUpload_Sign.PostedFile.FileName).ToLower();

if (FileUpload_Photo.HasFile)
{
    if (file_ext == ".jpg" || file_ext == ".bmp" || file_ext == ".png")
    {
        FileUpload_Photo.SaveAs(Server.MapPath(virtualFolder) + "\\" + lbl_UniqueId.Text + "" + file_ext);
        string photo = lbl_UniqueId.Text + "" + file_ext;
        string physicalFolder = Server.MapPath(virtualFolder);
        emp_img.Visible = true;
        emp_img.ImageUrl = Server.MapPath(virtualFolder) + @"\" + lbl_UniqueId.Text + "" + file_ext;
    }
}
if (FileUpload_Sign.HasFile)
{
    if (file_ext1 == ".jpg" || file_ext1 == ".bmp" || file_ext1 == ".png")
    {
        FileUpload_Sign.SaveAs(Server.MapPath(virtualFolder1) + "\\" + lbl_UniqueId.Text + "S" + file_ext1);
        string sign = lbl_UniqueId.Text + "S" + file_ext1;
        string physicalFolder1 = Server.MapPath(virtualFolder1);
        emp_sign.Visible = true;
        emp_sign.ImageUrl = Server.MapPath(virtualFolder1) + @"\" + lbl_UniqueId.Text + "" + file_ext1;
    }
}

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Read uploaded file extension and based on that save to folder using C# in ASP.Net

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