2
可能重複:
「Parameter not valid」 exception loading System.Drawing.ImageSystem.ArgumentException:參數無效
我將在一個數據庫中的圖像。
這裏是我的代碼
public class ImageUtils
{
const int sizeThumb = 69;
public static int uploadImage(int memberid, Image thumbimage)
{
MemoryStream stream = new MemoryStream();
thumbimage.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp);
Byte[] thumbbytes = stream.ToArray();
//int length = Convert.ToInt32(data.Length);
//byte[] thumbimage = new byte[length];
//data.Read(thumbimage, 0, length);
SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["FMMImages"].ConnectionString);
SqlCommand command = new SqlCommand("update Images_temp set thumbimage = @thumbimage where [email protected]", connection);
SqlParameter param0 = new SqlParameter("@thumbimage", SqlDbType.Image);
param0.Value = thumbbytes;
command.Parameters.Add(param0);
connection.Open();
object result = command.ExecuteScalar();
connection.Close();
if (result != null)
{
return System.Convert.ToInt32(result);
}
else
{
return 0;
}
}
aspx.cs在那裏我打電話uploadimage 圖像CroppedWaterMarkImage ......
ImageUtils.uploadImage(memberid, CroppedWaterMarkImage);
錯誤在uploadimage功能:
MemoryStream stream = new MemoryStream();
thumbimage.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp);
Byte[] thumbbytes = stream.ToArray();
System.ArgumentException:參數無效。
感謝 孫
如果您調試,它停在哪條線上? – Joe 2012-01-12 23:29:19
如果C#數據庫庫與Java類似,那麼您是不是將「thumbimage」傳遞給'SqlParameter'構造函數而不是「@thumbimage」?另外,您似乎沒有爲「@memberid」參數設置值。 – aroth 2012-01-12 23:30:20
http://stackoverflow.com/questions/629955/parameter-not-valid-exception-loading-system-drawing-image – 2012-01-12 23:31:07