Retrieve image from the sql database using c#, but giving an error, please give the solution

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C#

private void cmbEmpId_SelectedIndexChanged(object sender, EventArgs e)
        {
           SqlConnection ca = new SqlConnection();
           ca.ConnectionString = c1.pass();
           ca.Open();

            string str = "Select *  From EmpDetails where Emp_Id='" + cmbEmpId.Text.ToString() + "'";
            SqlCommand cam = new SqlCommand(str, ca);
            SqlDataReader sdr = cam.ExecuteReader();
           
            while (sdr.Read())
            {
                txtAddress.Text = Convert.ToString(sdr[5]);
                txtCity.Text = Convert.ToString(sdr[6]);
                cmbCountry.Text = Convert.ToString(sdr[7]);
                txtContactNo.Text = Convert.ToString(sdr[8]);
                txtEMailId.Text = Convert.ToString(sdr[9]);
                cmbQualification.Text = Convert.ToString(sdr[10]);
                cmbDesignation.Text = Convert.ToString(sdr[12]);
                cmbDepartment.Text = Convert.ToString(sdr[13]);

              
                byte[] img_arr1 = (byte[])sdr["photo"];
                MemoryStream ms = new MemoryStream();
                ms.Position = 0;
                ms.Write(img_arr1, 0, img_arr1.Length);
                pictureBox1.Image = Image.FromStream(ms);  <--- Giving Error "Parameter is not valid".

             }

        }

Posted 5-Jun-14 23:50pm

the_singh

Updated 6-Jun-14 0:22am

george4986

v2

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Nayan Rudani · Answer 1 · 2014-06-06T00:05:00

Hello Friends, Your Solution is Here

C#

private void cmbEmpId_SelectedIndexChanged(object sender, EventArgs e)           
{
SqlConnection ca = new SqlConnection();
ca.ConnectionString = c1.pass();
ca.Open();
 
string str = "Select * From EmpDetails where Emp_Id='" + cmbEmpId.Text.ToString() + "'";
SqlCommand cam = new SqlCommand(str, ca);
SqlDataReader sdr = cam.ExecuteReader();

while (sdr.Read())
{
txtAddress.Text = Convert.ToString(sdr[5]);
txtCity.Text = Convert.ToString(sdr[6]);
cmbCountry.Text = Convert.ToString(sdr[7]);
txtContactNo.Text = Convert.ToString(sdr[8]);
txtEMailId.Text = Convert.ToString(sdr[9]);
cmbQualification.Text = Convert.ToString(sdr[10]);
cmbDesignation.Text = Convert.ToString(sdr[12]);
cmbDepartment.Text = Convert.ToString(sdr[13]);
 

//byte[] img_arr1 = (byte[])sdr["photo"];
//MemoryStream ms = new MemoryStream();
//ms.Position = 0;
//ms.Write(img_arr1, 0, img_arr1.Length);
//pictureBox1.Image = Image.FromStream(ms); <--- Giving Error "Parameter is not valid".            

MemoryStream ms = new MemoryStream((byte[])sdr["photo"]);
pictureBox1.Image = Image.FromStream(ms);
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox1.Refresh();
 
}
 
}

Pravuprasad · Answer 2 · 2014-06-05T23:54:00

Solution 1

set the filemode property to create of memory stream

Posted 5-Jun-14 23:54pm

Pravuprasad