<!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>
<title></title>
<script type="text/javascript" src="/Scripts/jquery-1.7.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$(window).bind("paste", function () {
if (event.clipboardData) {
var clipboardData, found;
found = false;
clipboardData = event.clipboardData;
Array.prototype.forEach.call(clipboardData.items, function (item, i) {
if (item.type.indexOf("image") !== -1) {
var blob = clipboardData.items[i].getAsFile();
var URL = window.URL || window.webkitURL;
var source = URL.createObjectURL(blob);
pastedImage = new Image();
pastedImage.src = source;
pastedImage.onload = function () {
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
canvas.width = pastedImage.width;
canvas.height = pastedImage.height;
ctx.drawImage(pastedImage, 0, 0);
var base64 = canvas.toDataURL();
base64 = base64.substring(base64.indexOf("iVBOR"));
$.ajax({
url: "/API/AddTaskImages.aspx",
async: false,
type: "POST",
data: ({
Image: base64
}),
dataType: "html",
success: function (msg) {
var oRes;
try {
oRes = eval(msg);
}
catch (err) {
alert("無法解析傳回資料 !");
alert(msg);
alert(err);
}
if (oRes.success) {
alert("Upload Success..");
//alert(oRes.msg);
$("#MyImageDataLoadDemo").attr("src", oRes.msg);
} else {
alert(oRes.msg);
}
},
error: function (xhr, ajaxOptions, thrownError) {
alert(xhr.status);
alert(thrownError);
}
})
};
return false;
}
});
}
});
});
</script>
</head>
<body>
<div id="hold">
<div id="imgHold"><img src="" id="MyImageDataLoadDemo"></div>
<div>Click on the area above and ctrl+p an image to paste</div>
</div>
</body>
</html>
Partial Class API_AddTaskImages
Inherits System.Web.UI.Page
Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
'DB.sysconfig.Path.TaskAttachment
Dim Base64 As String = Me.Request("Image")
'UW.JSON.WriteErrorMessage(Base64)
'Return
Dim imageBytes As Byte() = Convert.FromBase64String(Me.Request("Image"))
Dim ms As System.IO.MemoryStream = New System.IO.MemoryStream(imageBytes, 0, imageBytes.Length)
ms.Write(imageBytes, 0, imageBytes.Length)
Dim image As System.Drawing.Image = System.Drawing.Image.FromStream(ms, True)
Dim map As Bitmap
Dim Filename As String = Now.ToString("yyyyMMddHHmmssfff") & ".png"
Try
System.IO.Directory.CreateDirectory(DB.sysconfig.Path.TaskAttachment & "UploadImages")
image.Save(DB.sysconfig.Path.TaskAttachment & "UploadImages\" & Filename, System.Drawing.Imaging.ImageFormat.Png)
UW.JSON.WriteSuccessMessage(DB.sysconfig.URL.TaskAttachment & "UploadImages/" & Filename)
Catch ex As Exception
UW.JSON.WriteErrorMessage(ex.ToString)
End Try
End Sub
End Class
.page {
color: black; /* 所有瀏覽器 */
color /**/: green; /* IE7, IE8, IE9 */
*color: blue; /* IE6, IE7 */
_color: red; /* IE6 */
}
<!doctype html>
<!--[if lt IE 7 ]> <html lang="en" class="no-js ie6"> <![endif]-->
<!--[if IE 7 ]> <html lang="en" class="no-js ie7"> <![endif]-->
<!--[if IE 8 ]> <html lang="en" class="no-js ie8"> <![endif]-->
<!--[if IE 9 ]> <html lang="en" class="no-js ie9"> <![endif]-->
<!--[if (gt IE 9)|!(IE)]><!--> <html lang="en" class="no-js"> <!--<![endif]-->
<head>
※ 注意事項 ※
微軟已經決定 Internet Explorer 10 之後的版本將移除條件式註解功能,因此下一代 IE 瀏覽器在解析條件式註解時將會與現有其他瀏覽器一樣,針對條件式註解或條件式標籤裡的條件式都會自動忽略,因此未來該功能只能用於 IE9 以下的瀏覽器裡。
USE AdventureWorks;
GO
CREATE INDEX IX_Address_PostalCode
ON Person.Address (PostalCode)
INCLUDE (AddressLine1, AddressLine2, City, StateProvinceID);
[InvalidOperationException: 由於該物件目前的狀態,導致作業無效。]
System.Web.HttpValueCollection.ThrowIfMaxHttpCollectionKeysExceeded() +2692302
System.Web.HttpValueCollection.FillFromEncodedBytes(Byte[] bytes, Encoding encoding) +61
System.Web.HttpRequest.FillInFormCollection() +148
[HttpException (0x80004005): URL 編碼型式資料無效。]
System.Web.HttpRequest.FillInFormCollection() +206
System.Web.HttpRequest.get_Form() +68
System.Web.HttpRequest.get_HasForm() +8735447
System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +97
System.Web.UI.Page.DeterminePostBackMode() +63
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +133
若你的 Web 應用程式真的會傳遞超過 1,000 個欄位時,這個預設值也是可以設定的,請修改網站根目錄下的 web.config 檔,並在
<appSettings>
<add key="aspnet:MaxHttpCollectionKeys" value="2500" />
</appSettings>