How do I validate a pdf file where filename passed as parametres.parametres like id..

Question

1.00/5 (2 votes)

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Hello Guys i am validating a pdf file that is working fine.. now i am trying to
validate a pdf file with id..our reQuirement is we are uploading a file 
when some conditions are true..

example if the person has an id den only he can upload..

now i need to validate the pdf file with id..filename should have certain parametres
like id that can be validated..


protected void btnSubmit_Click(object sender, EventArgs e)
        {

 var flag = false;
            try
            {

 if (fileUpload.HasFile )
                {

 var extension = System.IO.Path.GetExtension(fileUpload.FileName);
 if (extension.ToLower() == ".pdf")
                    {
 using (var conn = new SqlConnection(dbString))
                        {

                 line of code
                 }
       }
else
{
label.Text = "Please upload pdf files..";
}

}
else
                {

 if (!fileUpload.HasFile)
                    {
                        label.Text = "Please upload the file..";
               }
}
     }

catch(exception ex)
{
  lblStatus.Text = ex.Message;= ex.Message;
}

What I have tried:

validating pdf file works fine..
but how do i now pass a id as a paramtere that can be validated

Posted 4-Jul-17 7:53am

Mahesh2223

Updated 6-Jul-17 2:58am

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Comments

Sheila Pontes 6-Jul-17 8:13am

Hi,

Do you have a input where the person type the id?

Mahesh2223 11-Jul-17 1:54am

Yes i have a input where he types id

Sheila Pontes 11-Jul-17 8:05am

Mahesh, hi

See the solution below that i wrote to you. See if it solves your problem.

Mahesh2223 12-Jul-17 10:59am

yes sure i wil try it and let u know

1 solution

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Sheila Pontes · Accepted Answer · 2017-07-06T02:58:00

Hi,

To solve your problem, I ask the person, the ID first and validate this id in the database. If this id is valid, I open the option to upload the pdf file.
After uploading, I only validate the file because the id is valid.

Below example.

HTML code

ASP.NET

<pre><form id="form1" runat="server">
    <div>
        <label>Type your id:</label>
        <asp:TextBox ID="txtId" runat="server"></asp:TextBox>
        <asp:Button ID="btn_validate" runat="server" Text="Validate" OnClick="btn_validate_Click" />
    </div>
    <br />
    <div id="upload" runat="server" visible="false">
        <asp:FileUpload ID="my_file_upload" runat="server" />
    </div>
        <asp:Label ID="lblStatus" runat="server" Text="Label"></asp:Label>
    </form>

code-behind

C#

public partial class frmMyTest2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        private bool validate_id()
        {
            //connection in your data base e validate in your table.
            //Example:
            //select id from mytable_id where id=" + this.txtId.Text.Trim(); 
            //if the select return 1 line is true else false;

            return true;
        }

        protected void btn_validate_Click(object sender, EventArgs e)
        {
            try
            {
                if (this.validate_id())
                {
                    this.upload.Visible = true;
                }
                else
                {
                    this.lblStatus.Text = "This id is not valid";
                }
            }
            catch (Exception ex)
            {
                lblStatus.Text = ex.Message;
            }
        }
    }