Here we are uploading images in File System and storing path in the database.

Code (ImageUpload.aspx.cs) :-
private void Button1_Click(object sender, System.EventArgs e)
{
// Here I am uploading images in Images folder of C drive.
int intResult=0;
string strPath = @"c:\Images\"+Path.GetFileName(File1.PostedFile.FileName);
SqlConnection con = new SqlConnection("server=.;uid=sa;database=pubs;pwd=");
SqlCommand com = new SqlCommand("Insert into Category(name,imagepath) values(@name,@imagepath)",con);
com.Parameters.Add("@name",TextBox1.Text);
com.Parameters.Add("@imagepath",strPath);
con.Open();
intResult = Convert.ToInt32(com.ExecuteNonQuery());
if(intResult != 0)
{
File1.PostedFile.SaveAs(strPath);
Response.Write("Record Inserted.");
}
}