prevent to generate a error

Question

1.00/5 (2 votes)

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i want if user has not select the image the value should goto null in database.
it is raising an error if image is not selected.

C#

protected void btnsubmit_Click(object sender, EventArgs e)
    {

        try
        {
            filename = System.IO.Path.GetFileName(upldphoto.PostedFile.FileName);
           filename = GetUniqueFileName(filename);
           if (filename != null)
           {
               upldphoto.SaveAs(Server.MapPath("../Upload/Docters/" + filename));
           }

           bool a = obj.saveRecord(1,txtName.Text,txtPhone.Text,txtEmail.Text,txtAddress.Text,txtExpertise.Text,txtExp.Text,filename,txtQualification.Text);

           if (a == true)
           {
               Lblinfo.Text = "Record has been succesfully saved";
               txtName.Text = "";
               txtAddress.Text = "";
               txtEmail.Text = "";
               txtExpertise.Text = "";
               txtExp.Text = "";
               txtPhone.Text = "";
               txtQualification.Text = "";

           }
           else
               //Lblinfo.Text = "Record Not Saved";
           Lblinfo.Text = a.ToString();

        }


        catch (SqlException ex)
        {
            Response.Write(ex);



        }
    }

Posted 24-Sep-13 3:19am

Mohd Arif Khan

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Comments

Sergey Alexandrovich Kryukov 24-Sep-13 9:26am

What is "goto null in database"? It looks like your question has nothing to do with database but is about UI, but then ask about UI.
—SA

Mohd Arif Khan 24-Sep-13 9:28am

i mean in filename variable which is stored in database as image name. in that field

Sergey Alexandrovich Kryukov 24-Sep-13 9:39am

Is the following right? If the image is not selected, the database should not be modified. Or not?
—SA

ArunRajendra 25-Sep-13 0:00am

What is the error. post it?

Mohd Arif Khan 25-Sep-13 0:18am

thanks for your concern i have solved it.

2 solutions

Solution 1

You can check if there is a file first. See http://asp.net-tutorials.com/controls/file-upload-control/[^] for an example.

Posted 24-Sep-13 17:10pm

ZurdoDev

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*Suvabrata Roy* · Accepted Answer · 2013-09-24T18:39:00

Solution 2

Hi,

Check

upldphoto.PostedFile

is null then pass null to your saveRecord function.

If you did not select a file but try to access

upldphoto.PostedFile.FileName

then it will throw an error of object not set to a instance of an object.

Posted 24-Sep-13 18:39pm

Suvabrata Roy