document.getElementById('textbox_id').value// 获取指定 id 的内容 实例 document.getElementById("searchTxt").value; 尝试一下 » 注意:以下方法 2、3、4 和 6 返回元素的集合, 通过索引[index]来获取制定元素,第一个元素使用[0],第二个元素使用[1],以此类推...
var form=document.getElementById("form"); var textbox=form.elements[0];//取得表单中的第一个字段 EventUtil.addHandler(textbox,"focus",function(event){ event=EventUtil.getEvent(event); var target=EventUtil.getTarget(event); target.select(); }); 1. 2. 3. 4. 5. 6. 7. 8. ...
return textbox.value.substring(textbox.selectionStart, textbox.selectionEnd); } else if (document.selection) { return document.selection.createRange().text; } } var textbox = document.forms[0].elements["textbox1"]; EventUtil.addHandler(textbox, "select", function (event) { console.log(getS...
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functiongetSelectedText(textbox){ returntextbox.value.substring(textbox.selectionStart, textbox.selectionEnd); } IE8 及更早的版本中有一个 document.selection 对象,其中保存着用户在整个文档范围内选择 的文本信息;兼容IE8的写法 functiongetSelectedText(textbox){if(typeoftextbox.selectionStart == "number...
event=EventUtil.getEvent(event);vartarget =EventUtil.getTarget(event);if(/[^\d]/.test(target.value)){ target.style.background= 'red'; }else{ target.style.background= ''; } }); EventUtil.addHandler(textbox,"change",function(event){ ...
value}`); }); 取得选中的文本 HTML5 对 select 事件进行了扩展,通过 selectionStart 和selectionEnd 属性获取文本选区的起点偏移量和终点偏移量。如下所示: function getSelectedText(textbox){ return textbox.value.substring(textbox.selectionStart, textbox.selectionEnd); } 注意:在 IE8 及更早版本不...
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文本框addTextBoxaddTextBox(text?: string): Excel.Shape 几何形状 使用ShapeCollection.addGeometricShape创建几何形状。 该方法采用GeometricShapeType枚举作为参数。 下面的代码示例创建一个名为“Square”的 150x150 像素矩形,该矩形位于工作表的顶部和左侧 100 像素处。