I have this code in c# that pulls images from database and shows them in PictureBox. Whenever I run code first, I get this error saying "An unhandled exception of type 'System.ArgumentException' occurred in System.Drawing.dll Additional information: Parameter is not valid." But if I terminate and rerun the program, it works just fine giving intended results. Here is part of the code that is giving me trouble:
private void buttonGetImage_Click(object sender, EventArgs e)
{
string baseUrl = "http://someurl";
HttpWebRequest request = null;
foreach (var fileName in fileNames)
{
string url = string.Format(baseUrl, fileName);
MessageBoxButtons buttons = MessageBoxButtons.OKCancel;
DialogResult result;
result = MessageBox.Show(url, fileName, buttons);
if (result == System.Windows.Forms.DialogResult.Cancel)
{
this.Close();
}
request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
request.CookieContainer = container;
response = (HttpWebResponse)request.GetResponse();
Stream stream = response.GetResponseStream();
byte[] buffer = new byte[10000000];
int read, total = 0;
while ((read = stream.Read(buffer, total, 1000)) != 0)
{
total += read;
}
MemoryStream ms = new MemoryStream(buffer, 0, total);
ms.Seek(0, SeekOrigin.Current);
Bitmap bmp = (Bitmap)Bitmap.FromStream(ms);
pictureBoxTabTwo.Image = bmp;
this.pictureBoxTabTwo.SizeMode = PictureBoxSizeMode.Zoom;
pictureBoxTabTwo.Image.Save("FormTwo.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
Can someone help me to figure out what can be done? Error is showing me line --> Bitmap bmp = (Bitmap)Bitmap.FromStream(ms);
Instead of using Bitmap class I used Image class in my program. What I was doing here was taking a stream and putting it into a byte array. And again converting content of that array back to stream. Instead, I used
Image img = Image.FromStream(stream)
In this case You don't even have to use MemoryStream. It is working perfectly find for me now.