我有项目，其中我有文本框，我已经实现了MaskEditExtender并设置了Mask属性的值，如下所示
public static void uploadFile(Blob file_body, String file_name, String reqEndPoint){
// Repost of code with fix for file corruption issue
// Orignal code postings and explanations
// http://enreeco.blogspot.in/2013/01/salesforce-apex-post-mutipartform-data.html
// https://salesforce.stackexchange.com/questions/24108/post-multipart-without-base64-encoding-the-body
// Additional changes commented GW: that fix issue with occasional corruption of files
String boundary = '----------------------------741e90d31eff';
String header = '--'+boundary+'\nContent-Disposition: form-data; name="file"; filename="'+file_name+'";\nContent-Type: application/octet-stream';
// GW: Do not prepend footer with \r\n, you'll see why in a moment
// String footer = '\r\n--'+boundary+'--';
String footer = '--'+boundary+'--';
String headerEncoded = EncodingUtil.base64Encode(Blob.valueOf(header+'\r\n\r\n'));
while(headerEncoded.endsWith('='))
{
header+=' ';
headerEncoded = EncodingUtil.base64Encode(Blob.valueOf(header+'\r\n\r\n'));
}
String bodyEncoded = EncodingUtil.base64Encode(file_body);
// GW: Do not encode footer yet
// String footerEncoded = EncodingUtil.base64Encode(Blob.valueOf(footer));
Blob bodyBlob = null;
String last4Bytes = bodyEncoded.substring(bodyEncoded.length()-4,bodyEncoded.length());
// GW: Replacing this entire section
/*
if(last4Bytes.endsWith('='))
{
Blob decoded4Bytes = EncodingUtil.base64Decode(last4Bytes);
HttpRequest tmp = new HttpRequest();
tmp.setBodyAsBlob(decoded4Bytes);
String last4BytesFooter = tmp.getBody()+footer;
bodyBlob = EncodingUtil.base64Decode(headerEncoded+bodyEncoded.substring(0,bodyEncoded.length()-4)+EncodingUtil.base64Encode(Blob.valueOf(last4BytesFooter)));
}
else
{
bodyBlob = EncodingUtil.base64Decode(headerEncoded+bodyEncoded+footerEncoded);
}
*/
// GW: replacement section to get rid of padding without corrupting data
if(last4Bytes.endsWith('==')) {
// The '==' sequence indicates that the last group contained only one 8 bit byte
// 8 digit binary representation of CR is 00001101
// 8 digit binary representation of LF is 00001010
// Stitch them together and then from the right split them into 6 bit chunks
// 0000110100001010 becomes 0000 110100 001010
// Note the first 4 bits 0000 are identical to the padding used to encode the
// second original 6 bit chunk, this is handy it means we can hard code the response in
// The decimal values of 110100 001010 are 52 10
// The base64 mapping values of 52 10 are 0 K
// See http://en.wikipedia.org/wiki/Base64 for base64 mapping table
// Therefore, we replace == with 0K
// Note: if using \n\n instead of \r\n replace == with 'oK'
last4Bytes = last4Bytes.substring(0,2) + '0K';
bodyEncoded = bodyEncoded.substring(0,bodyEncoded.length()-4) + last4Bytes;
// We have appended the \r\n to the Blob, so leave footer as it is.
String footerEncoded = EncodingUtil.base64Encode(Blob.valueOf(footer));
bodyBlob = EncodingUtil.base64Decode(headerEncoded+bodyEncoded+footerEncoded);
} else if(last4Bytes.endsWith('=')) {
// '=' indicates that encoded data already contained two out of 3x 8 bit bytes
// We replace final 8 bit byte with a CR e.g. \r
// 8 digit binary representation of CR is 00001101
// Ignore the first 2 bits of 00 001101 they have already been used up as padding
// for the existing data.
// The Decimal value of 001101 is 13
// The base64 value of 13 is N
// Therefore, we replace = with N
// Note: if using \n instead of \r replace = with 'K'
last4Bytes = last4Bytes.substring(0,3) + 'N';
bodyEncoded = bodyEncoded.substring(0,bodyEncoded.length()-4) + last4Bytes;
// We have appended the CR e.g. \r, still need to prepend the line feed to the footer
footer = '\n' + footer;
String footerEncoded = EncodingUtil.base64Encode(Blob.valueOf(footer));
bodyBlob = EncodingUtil.base64Decode(headerEncoded+bodyEncoded+footerEncoded);
} else {
// Prepend the CR LF to the footer
footer = '\r\n' + footer;
String footerEncoded = EncodingUtil.base64Encode(Blob.valueOf(footer));
bodyBlob = EncodingUtil.base64Decode(headerEncoded+bodyEncoded+footerEncoded);
}
HttpRequest req = new HttpRequest();
req.setHeader('Content-Type','multipart/form-data; boundary='+boundary);
req.setMethod('POST');
req.setEndpoint(reqEndPoint);
req.setBodyAsBlob(bodyBlob);
req.setTimeout(120000);
Http http = new Http();
HTTPResponse res = http.send(req);
}
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>
<%@ Register TagPrefix="asp" Namespace="AjaxControlToolkit" Assembly="AjaxControlToolkit" %>
我在$（document）.ready函数中有初始化的文本框值。我的任务是更改复选框时更改掩码值。这个任务我用javascript函数“CallMe”完成了。所有代码都可以正常工作，但是当用户单击文本框时。文本框值从“00.00”更改为“00.0000”，即MaskEditExtender的Mask属性的初始值。
请帮帮我！
答案 0 :(得分：1)
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication1.WebForm1" %>
<%@ Register TagPrefix="asp" Namespace="AjaxControlToolkit" Assembly="AjaxControlToolkit" %>
<!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">
<script src="Scripts/jquery-1.6.2.min.js" type="text/javascript"></script>
<title></title>
<script>
$(document).ready(function () {
//$("#TextBox1").val('00.0000');
debugger;
document.getElementById('TextBox1').value = "00.0000";
});
function CallMe() {
debugger;
if (document.getElementById('CheckBox1').checked) {
$find("MaskedEditExtender1")._MaskConv = "99.9";
//$find("MaskedEditExtender1").set_Mask("99.9");
//$find("MaskedEditExtender1")._convertMask();
document.getElementById('TextBox1').value = "00.0";
alert($find("MaskedEditExtender1").get_Mask());
}
else {
$find("MaskedEditExtender1")._MaskConv = "99.9999";
//$find("MaskedEditExtender1").set_Mask("99.9999");
//$find("MaskedEditExtender1")._convertMask();
document.getElementById('TextBox1').value = "00.0000"
alert($find("MaskedEditExtender1").get_Mask());
}
}
function txtBox1_ClientClicked() {
// alert($find("MaskedEditExtender1").get_Mask());
// $find("MaskedEditExtender1").set_Mask("99.9");
// document.getElementById('TextBox1').value = "00.0";
alert($find("MaskedEditExtender1").get_Mask());
}
</script>
</head>
<body style="height: 137px">
<form id="form1" runat="server">
<div>
<asp:ToolkitScriptManager ID="ScriptManager1" runat="server" />
<%--<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>--%>
<asp:TextBox ID="TextBox1" runat="server" onclick="txtBox1_ClientClicked()"></asp:TextBox>
<asp:CheckBox ID="CheckBox1" runat="server" onchange="javascript:CallMe()" />
<asp:MaskedEditExtender ID="MaskedEditExtender1" runat="server"
TargetControlID="TextBox1" Mask="99.9999"
MessageValidatorTip="true" MaskType="Number" InputDirection="LeftToRight"
AcceptNegative="None" ErrorTooltipEnabled="True" >
</asp:MaskedEditExtender>
</div>
</form>
</body>
</html>
为了使用javascritp更改掩码值，我们可以使用_MaskConv或.set_Mask（“new value”）并与_convertMask函数结合使用。