使用固定宽度的kendo网格。如果文本更多，则显示省略号。但我可以根据字符串的结尾来区分行。由于这种影响我无法找到它。所以，我需要在文本中间省略。
示例：
abcdefghijklm
abcdefg... -> Normal Ellipse
abcd...klm -> I Want need this type of output
答案 0 :(得分：5)
一种方法如下，但这当然 - 依赖于JavaScript：
function centralEllipsis(opts) {
// the default settings, which can be overridden
// by the user:
var settings = {
// the number of the original characters to show:
'maxLength': 7,
// the character-sequence, or HTML character-
// entity to use to replace the missing characters:
'ellipsis': '…',
// the attribute to which you'd like to write the
// original text (this function does also write
// the text to the 'title' attribute though):
'writeToAttribute': 'data-originaltext'
},
// the element upon which we're working (cached
// because we'll access it more than once):
_this = this;
// iterating over the properties supplied by the user:
for (var prop in opts) {
// if the current property ('prop') of the object
// ('opts') is enumerable and not from the prototype:
if (opts.hasOwnProperty(prop)) {
// we update that property in the settings object
// (if the typeof the property-value ('opts[prop]')
// is not equal to the string 'undefined', if it is
// then we use the original property-value:
settings[prop] = 'undefined' !== typeof opts[prop] ? opts[prop] : settings[prop];
}
}
// we divide the settings.maxLength by 2 to work out
// how many characters should appear at the beginning
// of the string; using Math.ceil() to ensure whole
// numbers:
var prefixLength = Math.ceil(settings.maxLength / 2),
// finding the length of the suffix by subtraction
// of the prefixLength from the settings.maxLength:
suffixLength = settings.maxLength - prefixLength,
// setting the textContent of the current element
// as the element's title text and storing it in
// a variable:
originalText = _this.title = _this.textContent,
// empty variables initialised for later:
prefix, suffix;
// if the maxLength is less than the length of the original
// text, then we go ahead (if not, we do nothing):
if (settings.maxLength < originalText.length) {
// storing the original text in the specified attribute:
_this.setAttribute(settings.writeToAttribute, originalText);
// the prefix is the substring of the originalText, for
// settings.maxLength number of characters starting at
// index 0 (the beginning of the string):
prefix = originalText.substr(0, prefixLength);
// if settings.maxLength is less than 2 then the
// suffix is an empty string (''), otherwise it's
// a substring of the originalText, using a negative
// index which takes the last 'suffixLength'
// characters from the string:
suffix = settings.maxLength < 2 ? '' : originalText.substr(-suffixLength);
// here we set the innerHTML (so that we can use HTML
// character-entities, such as '…') to the
// prefix + the settings.ellipsis character(s) + the suffix:
_this.innerHTML = prefix + settings.ellipsis + suffix;
}
}
// Using Function.prototype.call() to use Array.prototype.forEach()
// on the array-like NodeList returned by document.querySelectorAll():
Array.prototype.forEach.call(document.querySelectorAll('.midEllipsis'), function (el) {
// the first argument (here: 'el') supplied to the function
// is the array-element (here a DOM node from the NodeList)
// from the array (NodeList) over which we're iterating.
// using Function.prototype.apply() in order to specify
// that 'this' in the function (centralEllipsis) will be
// the supplied DOM node ('el'); the array is used to
// pass the arguments to the function, the empty object
// is what will be the 'opts' variable in the function
// called. It doesn't have to be there, it's simply left
// in place to show how to pass arguments to the function,
// and how to supply user-defined options to override the
// the defaults:
centralEllipsis.apply(el, [{}]);
});
function centralEllipsis(opts) {
var settings = {
'maxLength': 7,
'ellipsis': '…',
'writeToAttribute': 'data-originaltext'
},
_this = this;
for (var prop in opts) {
if (opts.hasOwnProperty(prop)) {
settings[prop] = 'undefined' !== typeof opts[prop] ? opts[prop] : settings[prop];
}
}
var prefixLength = Math.ceil(settings.maxLength / 2),
suffixLength = settings.maxLength - prefixLength,
originalText = _this.title = _this.textContent,
prefix, suffix;
if (settings.maxLength < originalText.length) {
_this.setAttribute(settings.writeToAttribute, originalText);
prefix = originalText.substr(0, prefixLength);
suffix = settings.maxLength < 2 ? '' : originalText.substr(-suffixLength);
_this.innerHTML = prefix + settings.ellipsis + suffix;
}
}
Array.prototype.forEach.call(document.querySelectorAll('.midEllipsis'), function(el) {
centralEllipsis.apply(el, [{}]);
});<ul>
<li class="midEllipsis">abcdefghijklm</li>
</ul>
外部JS Fiddle demo，用于实验。
要覆盖默认设置，例如将maxLength设置为4：
Array.prototype.forEach.call(document.querySelectorAll('.midEllipsis'), function(el) {
centralEllipsis.apply(el, [{
'maxLength': 4
}]);
});
function centralEllipsis(opts) {
var settings = {
'maxLength': 7,
'ellipsis': '…',
'writeToAttribute': 'data-originaltext'
},
_this = this;
for (var prop in opts) {
if (opts.hasOwnProperty(prop)) {
settings[prop] = 'undefined' !== typeof opts[prop] ? opts[prop] : settings[prop];
}
}
var prefixLength = Math.ceil(settings.maxLength / 2),
suffixLength = settings.maxLength - prefixLength,
originalText = _this.title = _this.textContent,
prefix, suffix;
if (settings.maxLength < originalText.length) {
_this.setAttribute(settings.writeToAttribute, originalText);
prefix = originalText.substr(0, prefixLength);
suffix = settings.maxLength < 2 ? '' : originalText.substr(-suffixLength);
_this.innerHTML = prefix + settings.ellipsis + suffix;
}
}
Array.prototype.forEach.call(document.querySelectorAll('.midEllipsis'), function(el) {
centralEllipsis.apply(el, [{
'maxLength': 4
}]);
});<ul>
<li class="midEllipsis">abcdefghijklm</li>
</ul>
外部JS Fiddle demo，用于实验。
或者将'ellipsis'字符设置为'»'字符（例如）：
Array.prototype.forEach.call(document.querySelectorAll('.midEllipsis'), function(el) {
centralEllipsis.apply(el, [{
'ellipsis': '»'
}]);
});
function centralEllipsis(opts) {
var settings = {
'maxLength': 7,
'ellipsis': '…',
'writeToAttribute': 'data-originaltext'
},
_this = this;
for (var prop in opts) {
if (opts.hasOwnProperty(prop)) {
settings[prop] = 'undefined' !== typeof opts[prop] ? opts[prop] : settings[prop];
}
}
var prefixLength = Math.ceil(settings.maxLength / 2),
suffixLength = settings.maxLength - prefixLength,
originalText = _this.title = _this.textContent,
prefix, suffix;
if (settings.maxLength < originalText.length) {
_this.setAttribute(settings.writeToAttribute, originalText);
prefix = originalText.substr(0, prefixLength);
suffix = settings.maxLength < 2 ? '' : originalText.substr(-suffixLength);
_this.innerHTML = prefix + settings.ellipsis + suffix;
}
}
Array.prototype.forEach.call(document.querySelectorAll('.midEllipsis'), function(el) {
centralEllipsis.apply(el, [{
'ellipsis': '»'
}]);
});<ul>
<li class="midEllipsis">abcdefghijklm</li>
</ul>
外部JS Fiddle demo，用于实验。
参考文献：
答案 1 :(得分：0)
你添加了css和javascript标签，因此我想到了一种暗示两种语言的解决方法。
您可以尝试下一个解决方法：
1.在变量_a中减去除最后三个之外的所有字符。变量b中的变量最后三个字符
2.在应用了省略号的范围内抛出variable_a
3.在第一个跨度后立即添加另一个没有省略号并用最后三个字符填充（variable_b）