如果值为空,我需要覆盖 XMLWriter 的方法“WriteElementString”以不写入元素,下面的代码不起作用,尝试了override和new关键字,但它仍然转到框架方法。
public static void WriteElementString(this XmlWriter writer,
string localName,
string value)
{
if (!string.IsNullOrWhiteSpace(value))
{
writer.WriteStartElement(localName);
writer.WriteString(value);
writer.WriteEndElement();
}
}
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答案很接近,但正确的解决方案是:
public abstract class MyWriter : XmlWriter
{
private readonly XmlWriter writer;
public Boolean skipEmptyValues;
public MyWriter(XmlWriter writer)
{
if (writer == null) throw new ArgumentNullException("Writer");
this.writer = writer;
}
public new void WriteElementString(string localName, string value)
{
if (string.IsNullOrWhiteSpace(value) && skipEmptyValues)
{
return;
}
else
{
writer.WriteElementString(localName, value);
}
}
}
Run Code Online (Sandbox Code Playgroud) "大家好,我Xilium.CefGlue在Visual Studio上下载并构建了源代码(xilium-xilium.cefglue-b22787699e57),我还下载cef_binary_3.1453.1236_windows_xilium并复制libcef.dll到了Xilium Winforms演示版,因为应用程序需要它才能运行但是当我运行它时,我得到以下内容错误:
An attempt was made to load a program with an incorrect format.
Exception from HRESULT: 0x8007000B
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我的目标是x86,我可以得到一些帮助吗?谢谢
我有一个导航栏(吼叫),我想用Javascript更改标签,找不到文档来帮助我和很多在线破解的代码,我将在这里感谢一些帮助.
测试用例:选项卡最初选择了第1页,我想使用javascript更改为第2页.
<div data-role="tabs" id="tabs">
<div data-role="navbar" id="navbar">
<ul>
<li><a href="#page-1" data-ajax="false" class="ui-btn-active">1</a></li>
<li><a href="#page-2" data-ajax="false">2</a></li>
<li><a href="#page-3" data-ajax="false">3</a></li>
<li><a href="#page-4" data-ajax="false">4</a></li>
<li><a href="#page-5" data-ajax="false">5</a></li>
</ul>
</div>
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经测试的代码:
var index = $('#tabs a[href="#page-2"]').parent().index();
$('#tabs').tabs('select', index);
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抛出:
Error: no such method 'select' for tabs widget instance
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在解决方案之后我想出了这些功能:
function changeNavPagePrevious(tabControl) {
if ($("#" + tabControl + " .ui-tabs-active").prev().length > 0) {
if ($("#" + tabControl + " .ui-tabs-active").prev().children().length > 0) {
changeNavPage(tabControl, $("#" + tabControl + " .ui-tabs-active").prev().children().eq(0).attr("href").replace("#", ""));
}
}
} …Run Code Online (Sandbox Code Playgroud)