使用Http post将FormData发送到WebMethod [英] Send FormData To WebMethod using Http post
本文介绍了使用Http post将FormData发送到WebMethod的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
您好我正在尝试使用HttpPost将xml文件发送到Web方法但是在wbmethod中我得到例外,
var file = HttpContext.Current.Request.Files [ 0 ]
因为文件数量为零,任何人都可以帮忙吗?
$ scope.SelectFileForUpload = function (文件) {
if (file!= undefined && file!= null && file.length!= 0 ){
if (file.length< 2 ){
if (file [ 0 ]。type == ' text / xml' ){
$ scope.TransitionOfCareImport.File = file [ 0 ];
$ scope.GenerateHtml($ scope.TransitionOfCareImport.File);
}
else {
alert( 仅允许Xml);
angular.forEach(angular.element( input [type ='file'] ), function (inputElem){
angular.element(inputElem).val( null );
});
}
}
其他 {
alert( 不允许多个文件);
}
}
var formDaata = new FormData();
formDaata.append( file,file);
http({
url:myUrl,
method:method,
contentType: application / json,
data:formDaata,
dataType: json,
})
.success( function (数据,状态,标题,配置){
alert( success);
})
.error( function (数据,状态,标题,配置){
alert(data.Message) ;
});
}
和我的webmethod:
WebMethod (EnableSession = true )]
[ScriptMethod(ResponseFormat = ResponseFormat.Json,UseHttpGet = false )]
public static string GenerateHtmlFromXml()
{
if (HttpContext.Current.Request.Files!= null )
{
var file = HttpContext.Current.Request.Files [ 0 < /跨度>];
}
return string .Empty;
}
解决方案
scope.SelectFileForUpload = function (文件){
if (file!= undefined &&& file!= null && file.length!= 0 ){
if (file.length< 2 ){
if ( file [ 0 ] .type == ' text / xml '){
scope.TransitionOfCareImport.File = file [ 0 ];
scope.GenerateHtml(
Hello i am trying to send xml file to the web-method using HttpPost but in the wbmethod i am getting exception in ,
var file = HttpContext.Current.Request.Files[0]
because Files count is zero , can any one help ?
$scope.SelectFileForUpload = function (file) {
if (file != undefined && file != null && file.length != 0) {
if (file.length < 2) {
if (file[0].type == 'text/xml') {
$scope.TransitionOfCareImport.File = file[0];
$scope.GenerateHtml($scope.TransitionOfCareImport.File);
}
else {
alert("Xml Allowed Only");
angular.forEach(angular.element("input[type='file']"),function (inputElem) {
angular.element(inputElem).val(null);
});
}
}
else {
alert("Multiple files are not allowed");
}
}
var formDaata = new FormData();
formDaata.append("file", file);
http({
url: myUrl,
method: method,
contentType: "application/json",
data: formDaata ,
dataType: "json",
})
.success(function (data, status, headers, config) {
alert("success");
})
.error(function (data, status, headers, config) {
alert(data.Message);
});
}
and in my webmethod:
WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = false)]
public static string GenerateHtmlFromXml()
{
if (HttpContext.Current.Request.Files != null)
{
var file = HttpContext.Current.Request.Files[0];
}
return string.Empty;
}
解决方案
scope.SelectFileForUpload = function (file) { if (file != undefined && file != null && file.length != 0) { if (file.length < 2) { if (file[0].type == 'text/xml') {
scope.TransitionOfCareImport.File = file[0];
scope.GenerateHtml(
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