Empty path is not legal exception while updating images in C# (winforms).

[shaliniraji]

Hi Everyone,

I am developing 1 desktop application to my friend office,in that application i can store multiple images and i can retrieve the information for the same..My issue here is after retrieving the information when i click on update button I'm getting runtime exception i.e (Empty path is not legal exception)..

Here is the code which I wrote under updatebutton method:

public partial class CustomerDetails : Form
    {
 
        string imageloc = "";
        string imageloc1 = "";
        string imageloc2 = "";
        string imageloc3 = "";
        string imageloc4= " ";
   public static Byte[] Imagesave(string imagelocation)
        {
            byte[] img = null;
           /*Empty path is not legal error*/ FileStream fs = new FileStream(imagelocation, FileMode.Open, FileAccess.Read);
            BinaryReader br = new BinaryReader(fs);
            img = br.ReadBytes((int)fs.Length);
            fs.Close();
            br.Close();
            return img;
        }
private void btnupdateinfo_Click(object sender, EventArgs e)
        {
 
            string scn = ConfigurationManager.ConnectionStrings["Myconn"].ConnectionString;
            using (SqlConnection cn = new SqlConnection(scn))
            {
                using (SqlCommand cmd = new SqlCommand("SP_UpdateInfo", cn))
                {
                    try
                    {
 
 
                        cmd.CommandType = CommandType.StoredProcedure;
 
                        cmd.Parameters.AddWithValue("@Hp_Number", tbhpnum.Text);
                        cmd.Parameters.AddWithValue("@Customer_Name", tbcusnam.Text);
                        cmd.Parameters.AddWithValue("@Customer_Contact_Number", tbcusmblno.Text);
                        cmd.Parameters.AddWithValue("@Guarantor_Name", tbguanam.Text);
                        cmd.Parameters.AddWithValue("@Guarantor_Contact_Number", tbguamblno.Text);
                        cmd.Parameters.AddWithValue("@Hp_Date", DateTime.Parse(tbhpdat.Text));
                        cmd.Parameters.AddWithValue("@Customer_Address", tbcusadd.Text);
                        cmd.Parameters.AddWithValue("@Vehicle", tbveh.SelectedItem.ToString());
                        cmd.Parameters.AddWithValue("@Vehicle_Model", tbvehmod.SelectedItem.ToString());
                        cmd.Parameters.AddWithValue("@Vehicle_Number", tbvehnum.Text);
                        cmd.Parameters.AddWithValue("@Chasis_Number", tbchanum.Text);
                        cmd.Parameters.AddWithValue("@Engine_Number", tbengnum.Text);
                        cmd.Parameters.AddWithValue("@FC_Date", DateTime.Parse(tbfcdat.Text));
                        cmd.Parameters.AddWithValue("@Insurance_Date", DateTime.Parse(tbinsdat.Text));
                        cmd.Parameters.AddWithValue("@Insurance_Amount",                               Convert.ToInt32(tbinsamt.Text));
                        cmd.Parameters.AddWithValue("@Paid_Amount", Convert.ToInt32(tbpaiamt.Text));
                        cmd.Parameters.AddWithValue("@Paid_Date", DateTime.Parse(tbpaidat.Text));
                        cmd.Parameters.AddWithValue("@Vehicle_Pic",Imagesave(imageloc));
                        cmd.Parameters.AddWithValue("@Customer_Pic", Imagesave(imageloc1));
                        cmd.Parameters.AddWithValue("@Guarantor_Pic", Imagesave(imageloc2));
                        cmd.Parameters.AddWithValue("@Documents_Pic", Imagesave(imageloc3));
                        cmd.Parameters.AddWithValue("@Insurance_Pic", Imagesave(imageloc4));
 
                        if (cn.State != ConnectionState.Open)
                            cn.Open();
 
                        int count = cmd.ExecuteNonQuery();
                        if (count == 1)
                        {
                            MessageBox.Show(count.ToString() + "Customer(s) Record(s) has Updated                     Successfully .", "Succes", MessageBoxButtons.OK);
                        }
 
 
                    }
 
                    catch (SqlException ex)
                    {
                        MessageBox.Show(ex.ToString());
 
                    }
                    finally
                    {
                        if (cn.State == ConnectionState.Open)
                            cn.Close();
                    }
                }
            }
 
        }

[Arunmozhi]

please set your image location should be save

[shaliniraji]

I'm directly saving all the images into Database,in that case I didn't set path instead of that converting all the images into byte format before saving into database.

[Rabbit]

You're trying to open a file using a blank string on that line.