[英]Stop html form submission
嗨,我有HTML表單,我有一個onclick事件,它會提示用戶,例如確定是/否。 如果選擇否,則它應該阻止表單提交,但是似乎在對話框被稱為異步時一直在處理。 我正在使用一個jquery插件http://marcosesperon.es/apps/messi/來顯示我的提示。
以下是我的代碼片段:
<div id="buttonCommnads">
<button type="submit" class="k-button cancel" id="save" value="Save" title="Save inspection so it may be submitted at a later time" onclick="processCommand(COMMAND.SAVE);">Save</button>
<button type="submit" class="k-button" id="Submit" value="Submit" title="Submit inspection" onclick="return processCommand(COMMAND.SUBMIT);">Submit</button>
@*<button type="submit" class="k-button" id="email" title="Generate draft email for inspection photos" onclick="processCommand(COMMAND.EMAIL);">Email</button>*@
<button type="button" class="k-button" id="cancel" title="Discard changes" onclick="location.href='@Url.Action("Index", "Inspections")'">Cancel</button>
</div>
然后是javascript函數:
<script>
var COMMAND = {
SAVE: { value: 0, name: "Save", tense: "saved" },
EMAIL: { value: 1, name: "Email", tense: "emailed" },
SUBMIT: { value: 2, name: "Submit", tense: "submitted" },
};
function processCommand(command) {
if (command == COMMAND.EMAIL) {
}
else if (command == COMMAND.SAVE) {
$('#Submit').val(command.name);
$('#inspectionForm').submit();
}
else if (command == COMMAND.SUBMIT) {
$('#Submit').val(command.name);
var photosAttached = '@Model.Survey.SitePhotoes.Count()';
console.log('processCommand: submit - begin');
if (photosAttached >= 1) {
console.log('processCommand: submit photos attached.');
return true;
} else {
console.log('processCommand: prompt messi.');
new Messi('Are you sure you wish to submit as no inspections photos are currently attached?', {
title: command.name + ' Inspection',
buttons: [{ id: 0, label: 'Yes', val: 'Y', btnClass: 'btn-success' },
{ id: 1, label: 'No', val: 'N', btnClass: 'btn-danger' }],
modal: true,
callback: function (val) {
if (val == 'Y') {
console.log('processCommand: yes.');
return true;
}
else {
console.log('processCommand: no.');
return false;
}
}
});
}
console.log('processCommand: submit - end');
}
}
我正在使用ASP.NET MVC 4,並且對Web開發還很陌生,所以請原諒我的無知。 任何幫助,不勝感激。
文斯。
對話框是異步進行的,因此無法阻止它。 但是您可以做的是確保單擊按鈕后不提交表單,而是在適當的情況下從回調內提交表單:
HTML:
<button type="submit" class="k-button" id="email" title="Generate draft email for inspection photos" onclick="(function() {processCommand(COMMAND.EMAIL);return false;})()">Email</button>
Javascript:
function processCommand(command) {
if (command == COMMAND.EMAIL) {
}
else if (command == COMMAND.SAVE) {
$('#Submit').val(command.name);
$('#inspectionForm').submit();
}
else if (command == COMMAND.SUBMIT) {
$('#Submit').val(command.name);
var photosAttached = '@Model.Survey.SitePhotoes.Count()';
console.log('processCommand: submit - begin');
if (photosAttached >= 1) {
console.log('processCommand: submit photos attached.');
return true;
} else {
console.log('processCommand: prompt messi.');
new Messi('Are you sure you wish to submit as no inspections photos are currently attached?', {
title: command.name + ' Inspection',
buttons: [{ id: 0, label: 'Yes', val: 'Y', btnClass: 'btn-success' },
{ id: 1, label: 'No', val: 'N', btnClass: 'btn-danger' }],
modal: true,
callback: function (val) {
if (val == 'Y') {
console.log('processCommand: yes.');
$("form:first").submit();
}
else {
console.log('processCommand: no.');
}
}
});
}
console.log('processCommand: submit - end');
}
通過阻止submit
事件的默認操作來停止表單提交。 click
事件不太合適,因為也可以使用鍵盤提交表單。
在jQuery中,它是:
$('form').on('submit', function(){
return false;
})
由於提示是異步的,因此您始終必須停止正常提交,並在用戶按下“是”時使用form.submit()
強制提交。
我將提交按鈕更改為普通按鈕(將type="submit"
更改為type="button"
)。 然后,在按鈕觸發的函數中,如果您評估用戶已按下“是”,則使用jQuery提交表單:
('#yourFormID').submit();
否則, return false
。
編輯:我注意到您已經使用jQuery觸發了submit()
,因此按鈕不必是submit
類型。 如果僅將按鈕type
更改為button
而不是submit
並在不想提交任何內容的情況下添加return false
發生什么? 這不是您的意思嗎?
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