Geek asks and answers

Download only ASP.NET files, save path and file name in sql table

Possible duplicate:
How to limit the file type in the FileUpload control

I have a problem using my image downloader. It will download all types of files. I need a code to figure out if this is an image (jpg, png, etc.). Then it should save the path and file name in my sql. Name and path storage is performed, and it is a regular expression. Now I need to enable som code, which I found here. The question is, how is this done?

My code is:

protected void btnUpload_Click(object sender, EventArgs e)
{
    if (FileUpload1.PostedFile != null)
    {
        string FileName = Path.GetFileName(FileUpload1.PostedFile.FileName);

        //Save files to disk
        FileUpload1.SaveAs(Server.MapPath("~/_PublicData/Images/" + FileName));

        //Add Entry to DataBase
        String strConnString = System.Configuration.ConfigurationManager.ConnectionStrings["Computer_Klubben_CommunitySiteConnectionString"].ConnectionString;
        SqlConnection con = new SqlConnection(strConnString);
        string strQuery = "insert into dbo.Billeder (FileName, FilePath)" + " values(@FileName, @FilePath)";
        SqlCommand cmd = new SqlCommand(strQuery);
        cmd.Parameters.AddWithValue("@FileName", FileName);
        cmd.Parameters.AddWithValue("@FilePath", "~/_PublicData/Images/" + FileName);
        cmd.CommandType = CommandType.Text;
        cmd.Connection = con;

        try
        {
            con.Open();
            cmd.ExecuteNonQuery();
        }

        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }

        finally
        {
            con.Close();
            con.Dispose();
        }
    }
}

I need to put this code in the following code that I found here. How to download only jpeg files?

Am I posting my code after the code here or am I putting it? Please, help.

+5
4
protected void btnUpload_Click(object sender, EventArgs e)
{
    if (FileUpload1.PostedFile != null)
    {
            string fileExt = 
               System.IO.Path.GetExtension(FileUpload1.FileName);

            if (fileExt == ".jpeg" || fileExt == ".jpg")
            {

string FileName = Path.GetFileName(FileUpload1.PostedFile.FileName);

        //Save files to disk
        FileUpload1.SaveAs(Server.MapPath("~/_PublicData/Images/" + FileName));

        //Add Entry to DataBase
        String strConnString = System.Configuration.ConfigurationManager.ConnectionStrings["Computer_Klubben_CommunitySiteConnectionString"].ConnectionString;
        SqlConnection con = new SqlConnection(strConnString);
        string strQuery = "insert into dbo.Billeder (FileName, FilePath)" + " values(@FileName, @FilePath)";
        SqlCommand cmd = new SqlCommand(strQuery);
        cmd.Parameters.AddWithValue("@FileName", FileName);
        cmd.Parameters.AddWithValue("@FilePath", "~/_PublicData/Images/" + FileName);
        cmd.CommandType = CommandType.Text;
        cmd.Connection = con;

        try
        {
            con.Open();
            cmd.ExecuteNonQuery();
        }

        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }

        finally
        {
            con.Close();
            con.Dispose();
        }


}
else
{
  //Show Error Message. Invalid file.
}


    }

}
+3

, . , , - . . FileUplaod .

  private Boolean ImageUploadValidation(FileUpload UploadedFile)
{
    String FileExtension = String.Empty, Code = String.Empty;
    try
    {
        if (String.IsNullOrEmpty(UploadedFile.PostedFile.FileName))
        {
            Code = "<script> alert(' Please select file');</script>";
            ClientScript.RegisterStartupScript(this.GetType(), "someKey", Code);
            return false;
        }

        FileExtension = Path.GetExtension(UploadedFile.FileName).ToLower();

        if (!FileExtension.Equals(".gif") &&
            !FileExtension.Equals(".png") &&
            !FileExtension.Equals(".jpg") &&
            !FileExtension.Equals(".bmp") &&
            !FileExtension.Equals(".gif") &&
            !FileExtension.Equals(".jpeg") &&
            !FileExtension.Equals(".tif") &&
            !FileExtension.Equals(".tiff"))
        {
            Code = "<script> alert(' Please select valid file. File can be of extension(gif, png, jpg, bmp, gif, jpeg, tif, tiff)');</script>";
            ClientScript.RegisterStartupScript(this.GetType(), "someKey", Code);
            return false;
        }
        return true;
    }
    catch (Exception)
    {

        throw;
    }
+2

I found a solution with this workaround:

<asp:FileUpload ID="fuImportImage" runat="server" />
<asp:RegularExpressionValidator ID="regexValidator" runat="server"
     ControlToValidate="fuImportImage"
     ErrorMessage="Only JPEG images are allowed" 
     ValidationExpression="(.*\.([Jj][Pp][Gg])|.*\.([Jj][Pp][Ee][Gg])$)">
</asp:RegularExpressionValidator>
+1
source

Here is a regular expression.

System.Text.RegularExpressions.Regex imageFilenameRegex = new 
System.Text.RegularExpressions.Regex(@"(.*?)\.(jpg|jpeg|png|gif)$", 
System.Text.RegularExpressions.RegexOptions.IgnoreCase);


bool ismatch =imageFilenameRegex.IsMatch(imgFile.FileName)
0
source

More articles:


All Articles