ExtjsNumberField后面加单位实现思路_extjs

// 输入框textfield后面放字unitText定义:
Ext.override(Ext.form.TextField, {
unitText : '',
onRender : function(ct, position) {
Ext.form.TextField.superclass.onRender.call(this,ct, position);

if (this.unitText != ''){
this.unitEl =ct.createChild({
tag: 'div',
html: this.unitText this.unitEl.addClass('x-form-unit'); this.width =this.width
-(this.unitText.replace(/[^\x00-\xff]/g, "xx").length * 6 +2); this.alignErrorIcon= function() {
this.errorIcon.alignTo(this.unitEl,'tl-tr', [2, 0]); }});