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Reylin Mathew
NA
347
76.1k
resize crop and image
Apr 5 2018 9:51 AM
I have a system here to upload an image and crop it using asp.net. When I save the cropped image, It won't resize and stay as the original. How do I resize the picture?
This is my code.
Default.aspx
<%@ Page Language=
"C#"
AutoEventWireup=
"true"
CodeBehind=
"resizepic.aspx.cs"
Inherits=
"WebApplication.resizepic"
%>
<!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
>
<html xmlns=
"http://www.w3.org/1999/xhtml"
>
<head runat=
"server"
>
<title></title>
<link href=
"css/jquery.Jcrop.css"
rel=
"stylesheet"
type=
"text/css"
/>
<script type=
"text/javascript"
src=
"http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"
></script>
<script src=
"script/jquery.Jcrop.js"
type=
"text/javascript"
></script>
<script type=
"text/javascript"
>
$(window).load(
function
() {
var
jcrop_api;
var
i, ac;
initJcrop();
function
initJcrop() {
jcrop_api = $.Jcrop(
'#imgCrop'
, {
onSelect: storeCoords,
onChange: storeCoords
//, onSelect: storeCoords(c)
});
jcrop_api.setOptions({ aspectRatio: 1 / 1 });
jcrop_api.setOptions({
minSize: [250, 250],
maxSize: [250, 350]
//,onSelect: storeCoords(c)
//onChange: SetCoordinates,
// onSelect: SetCoordinates
});
jcrop_api.setSelect([140, 180, 160, 180]);
};
function
storeCoords(c) {
jQuery(
'#X'
).val(c.x);
jQuery(
'#Y'
).val(c.y);
jQuery(
'#W'
).val(c.w);
jQuery(
'#H'
).val(c.h);
};
});
</script>
</head>
<body>
<form id=
"form1"
runat=
"server"
>
<div>
<asp:Panel ID=
"pnlUpload"
runat=
"server"
>
<asp:FileUpload ID=
"Upload"
runat=
"server"
/>
<asp:Button ID=
"btnUpload"
runat=
"server"
OnClick=
"btnUpload_Click"
Text=
"Upload"
/>
<asp:Label ID=
"lblError"
runat=
"server"
Visible=
"false"
/>
</asp:Panel>
<asp:Panel ID=
"pnlCrop"
runat=
"server"
Visible=
"false"
style=
"width:250px;height:auto"
>
<asp:Image ID=
"imgCrop"
runat=
"server"
/>
<asp:HiddenField ID=
"X"
runat=
"server"
/>
<asp:HiddenField ID=
"Y"
runat=
"server"
/>
<asp:HiddenField ID=
"W"
runat=
"server"
/>
<asp:HiddenField ID=
"H"
runat=
"server"
/>
</asp:Panel>
<asp:Panel ID=
"pnlCropped"
runat=
"server"
Visible=
"false"
>
<asp:Image ID=
"imgCropped"
runat=
"server"
/>
</asp:Panel>
<asp:Button ID=
"btnCrop"
runat=
"server"
Text=
"Crop"
OnClick=
"btnCrop_Click"
/>
</div>
</form>
</body>
</html>
Default.aspx.cs
protected
void
Page_Load(
object
sender, EventArgs e)
{
}
protected
void
btnUpload_Click(
object
sender, EventArgs e)
{
Boolean FileOK =
false
;
Boolean FileSaved =
false
;
if
(Upload.HasFile)
{
Session[
"UploadImage"
] = Upload.FileName;
String ExtensionofImage = Path.GetExtension(Session[
"UploadImage"
].ToString()).ToLower();
String[] allowed = {
".png"
,
".jpeg"
,
".jpg"
,
".gif"
};
for
(
int
i = 0; i < allowed.Length; i++)
{
if
(ExtensionofImage == allowed[i])
{
FileOK =
true
;
}
}
}
if
(FileOK)
{
try
{
Upload.PostedFile.SaveAs(path + Session[
"UploadImage"
]);
FileSaved =
true
;
}
catch
(Exception ex)
{
lblError.Text =
"Sorry Can't Upload"
+ ex.Message.ToString();
lblError.Visible =
true
;
FileSaved =
false
;
}
}
else
{
lblError.Text =
"Select some Other Image"
;
lblError.Visible =
true
;
}
if
(FileSaved)
{
pnlUpload.Visible =
false
;
pnlCrop.Visible =
true
;
imgCrop.ImageUrl =
"images/"
+ Session[
"UploadImage"
].ToString();
}
}
protected
void
btnCrop_Click(
object
sender, EventArgs e)
{
string
Img = Session[
"UploadImage"
].ToString();
int
w = Convert.ToInt32(W.Value);
int
h = Convert.ToInt32(H.Value);
int
x = Convert.ToInt32(X.Value);
int
y = Convert.ToInt32(Y.Value);
byte
[] CropImage = Cut(path + Img, w, h, x, y);
using
(MemoryStream mem =
new
MemoryStream(CropImage, 0, CropImage.Length))
{
mem.Write(CropImage, 0, CropImage.Length);
using
(SD.Image CroppedImage = SD.Image.FromStream(mem,
true
))
{
string
SaveTo = path +
"crop"
+ Img;
CroppedImage.Save(SaveTo, CroppedImage.RawFormat);
pnlCrop.Visible =
false
;
pnlCropped.Visible =
true
;
imgCropped.ImageUrl =
"images/crop"
+ Img;
}
}
}
static
byte
[] Cut(
string
Img,
int
Breadth,
int
Length,
int
X,
int
Y)
{
try
{
using
(SD.Image OriginalImage = SD.Image.FromFile(Img))
{
using
(SD.Bitmap bmp =
new
SD.Bitmap(Breadth, Length))
{
bmp.SetResolution(OriginalImage.HorizontalResolution, OriginalImage.VerticalResolution);
using
(SD.Graphics Graphic = SD.Graphics.FromImage(bmp))
{
Graphic.SmoothingMode = SmoothingMode.AntiAlias;
Graphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
Graphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
Graphic.DrawImage(OriginalImage,
new
SD.Rectangle(0, 0, Breadth, Length), X, Y, Breadth, Length, SD.GraphicsUnit.Pixel);
MemoryStream ms =
new
MemoryStream();
bmp.Save(ms, OriginalImage.RawFormat);
return
ms.GetBuffer();
}
}
}
}
catch
(Exception Ex)
{
throw
(Ex);
}
}
plz help me..
Reply
Answers (
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