public static string UploadImage(string path, string filename)
{
var context = HttpContext.Current;
string strReturn = string.Empty;
strReturn = "no_images.jpg";
try
{
var file = context.Request.Files[0];
if (file != null && file.ContentLength > 0)
{
if (!Directory.Exists(context.Server.MapPath(path)))
{
Directory.CreateDirectory(context.Server.MapPath(path));
}
string fileType = Path.GetExtension(file.FileName);
if (ValidateExtension(fileType) == true)
{
string date = DateTime.Now.ToString("dd-MM-yyyy-HH-mm-ss");
string folder = context.Server.MapPath(path);
string targetPath = Path.Combine(folder, filename + "-" + date + fileType);
file.SaveAs(targetPath);
strReturn = filename + "-" + date + fileType;
}
}
}
catch (Exception ex)
{
WriteLogs.WriteToLogFile(ex);
}
return(strReturn);
}
public static List <string> UploadImages(string path, string filename)
{
var httpContext = HttpContext.Current;
try
{
List <string> lst = new List <string>();
if (httpContext.Request.Files.Count > 0)
{
for (int i = 0; i < httpContext.Request.Files.Count; i++)
{
var file = httpContext.Request.Files[i];
string imgReturn = "";
if (file.ContentLength > 0)
{
if (!Directory.Exists(httpContext.Server.MapPath(path)))
{
Directory.CreateDirectory(httpContext.Server.MapPath(path));
}
string fileType = Path.GetExtension(file.FileName);
string fileSave = filename + "-0" + i;
if (ValidateExtension(fileType) == true)
{
string date = DateTime.Now.ToString("dd-MM-yyyy-HH-mm-ss");
string folder = httpContext.Server.MapPath(path);
string targetPath = Path.Combine(folder, fileSave + "-" + date + fileType);
file.SaveAs(targetPath);
imgReturn = fileSave + "-" + date + fileType;
lst.Add(imgReturn);
}
}
}
}
return(lst);
}
catch (Exception ex)
{
WriteLogs.WriteToLogFile(ex);
return(null);
}
}
public static bool SaveResizeImage(Image img, int width, string path)
{
try
{
//Lấy chiều cao ban đầu của hình ảnh
int originalW = img.Width;
int originalH = img.Height;
//kích thước resize
//int resizeW = width;
int resizedH = (originalH * width) / originalW;
Bitmap b = new Bitmap(width, resizedH);
Graphics g = Graphics.FromImage((Image)b);
g.InterpolationMode = InterpolationMode.Bicubic; // Specify here
g.DrawImage(img, 0, 0, width, resizedH);
g.Dispose();
b.Save(path);
return(true);
}
catch (Exception ex)
{
WriteLogs.WriteToLogFile(ex);
return(false);
}
}