我正在使用infile来要求用户在他们的机器上浏览文件.如果窗口关闭而未选择文件,是否有办法捕获?
例如,如果单击x.
<input type="file" name="data" id="inFile" size="15" style="display:none" onchange="handleFiles(this)"/>
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谢谢
如何删除Google Chrome中显示的按钮上的黄色边框.我试图覆盖样式,但想象一下你是否必须为每个按钮执行此操作.

.dijitReset .dijitStretch .dijitButtonContents{
outline:none;
}
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有任何想法吗?
当我使用我的输入按钮浏览用户计算机上的文件时,它适用于FF,IE9和Chrome.但是当我将文件传递给IE9中的JS函数时,我得到了未定义,而它在FF和Chrome中完美运行.
<form id="uploadForm" style='display:none;padding:1px;' method="post" enctype="multipart/form-data">
<input type="file" name="data" id="inFile" size="15" style="display:none" onchange="handleFiles(this.files)"/>
function handleFiles(files){
//doing something with the files
}
//In IE files is undefined
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我也试过用
dojo.connect(dojo.byId("uploadForm").data, "onchange", function(evt){
handleFiles(this.files);
});
<form id="uploadForm" method="post" enctype="multipart/form-data">
<input type="file" name="data" id="inFile" size="15" style="display:none"/>
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This.files再次未定义
谢谢
我正在创建两个表RegistrationHeader和RegistrationDetail.我如何添加一个约束,当我删除RegistrationHeader表以自动删除RegistrationDetail表.
create table RegistrationHeader(
RegistrationNo numeric
,BillingID varchar(30) not null
,RegistrationDate date not null
,PaymentType varchar check (PaymentType = 'CC' or PaymentType = 'PO' or PaymentType = 'Check') not null
,CCNumber numeric check(CCNumber >= 15 and CCNumber <=16)
,PONumber varchar(30)
,CheckNumber varchar(10)
,primary key(RegistrationNo)
,foreign key(BillingId) references Person(UserID)
,constraint CC_CCNumber_constr check(
(PaymentType = 'CC' and CCNumber is not null)
or
(PaymentType != 'CC' and CCNumber is null)
)
,constraint PO_PONumber_constr check(
(PaymentType = 'PO' and (PONumber is not null or …Run Code Online (Sandbox Code Playgroud) 我正在做一个项目,我想在 Web 作业中实现 Service Buss 触发器。我已按照此处的说明进行操作:https : //docs.microsoft.com/en-us/azure/app-service/webjobs-sdk-get-started。
public class Functions
{
public static void ProcessQueueMessage([QueueTrigger("queue")] string message, ILogger logger)
{
logger.LogInformation(message);
}
}
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但我想使用 ServiceBus 的 Microsoft.Azure.WebJobs.ServiceBusTrigger 而不是存储队列 (QueueTrigger)。在文档中声明使用以下内容:https : //docs.microsoft.com/en-us/azure/app-service/webjobs-sdk-how-to#service-bus-trigger-configuration-version-3x
static void Main()
{
var builder = new HostBuilder();
builder.ConfigureWebJobs(b =>
{
b.AddAzureStorageCoreServices();
b.AddServiceBus(sbOptions =>
{
sbOptions.MessageHandlerOptions.AutoComplete = true;
sbOptions.MessageHandlerOptions.MaxConcurrentCalls = 16;
});
});
var host = builder.Build();
using (host)
{
host.Run();
}
}
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但是,问题是 b.AddServiceBus 甚至不可用(我有最新的 Web 作业版本)。因此,当我运行该项目时,出现“未找到工作职能”错误。任何想法或指示?
我确实尝试过:
public static void ProcessQueueMessage([Microsoft.Azure.WebJobs.ServiceBusTrigger("queue")] string …Run Code Online (Sandbox Code Playgroud) 我正在使用Html.BeginForm但是当试图为它分配一个类时会出现问题.如果我使用第四名的课很好.但如果我尝试另外使用enctype,则会出现错误.这可以:
@using (Html.BeginForm("Edit", "Inventory", FormMethod.Post, new {enctype = "multipart/form-data"}))
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但这不是:
@using (Html.BeginForm("Edit", "Inventory", FormMethod.Post, new {enctype = "multipart/form-data"}, new { @class = "listForm" } ))
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这不是:
@using (Html.BeginForm("Edit", "Inventory", FormMethod.Post, new { @class = "listForm" }, new {enctype = "multipart/form-data"}))
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请任何想法.谢谢
我有这个模板:
var template = kendo.template("<div class='relatedItemRow'>"
+ "<span id='relatedItemName'>Related Item #: Number #</span>"
+ "<div class='relatedItemRowInfo'><span >#: Name #</span>"
+ "<a data-relatedItemID='#: Value #' class='removeRelatedItem'>"
+ "<img src= '#: Img #'/</a></div><br class='clear'/></div>");
var data = {
Name: "" + checkbox.getAttribute('flatName'),
Number: $('#relatedItemsList').children().length + 1,
Img: '/Content/images/x_remove.png',
Value: checkbox.value
};
var result = template(data);
$("#relatedItemsList").append(result);
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我可以使用以下方法访问data-relatedItemID:
$('#relatedItemsList').children().eq(i).children().last().attr('data-relatedItemID')
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但是,如何进入数据中的数字字段?我想动态地改变那个.我试过了:
$('#relatedItemsList').children().eq(i).children().attr('Number') == 5
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但它不起作用.知道怎么做吗?
我有桌子Address,Property并且Listing:
Create Table Listing
( PropertyID int -- Property ID as per the Property table
, AgentID int
, ListingDate DateTime not null property
, AskingPrice Decimal(10,2) not null
, SaleDate Date
, SalePrice Decimal(10, 2)
, Primary Key (PropertyID, ListingDate)
, Foreign Key (PropertyID) references Property(PropertyID)
, Foreign Key (AgentID) references Agent(AgentID) on delete no action on update no action
Create Table Address
( AddressID int Primary Key
, StreetAddress varchar (100)
, …Run Code Online (Sandbox Code Playgroud) javascript ×3
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