如何在onclick事件中获取表单字段值
我正在使用这篇架构文章 http:// blog.extjs.eu/know-how/writing-a-big-application-in-ext/
在我的代码中:
我有这个 Application.DashBoardForm.js 我想传递 fromdate 的值onclick 事件函数,我如何传递 fromdate 值?
Ext.apply(Ext.form.VTypes, {
daterange : function(val, field) {
var date = field.parseDate(val);
if(!date){
return false;
}
if (field.startDateField) {
var start = Ext.getCmp(field.startDateField);
if (!start.maxValue || (date.getTime() != start.maxValue.getTime())) {
start.setMaxValue(date);
start.validate();
}
}
else if (field.endDateField) {
var end = Ext.getCmp(field.endDateField);
if (!end.minValue || (date.getTime() != end.minValue.getTime())) {
end.setMinValue(date);
end.validate();
}
}
/*
* Always return true since we're only using this vtype to set the
* min/max allowed values (these are tested for after the vtype test)
*/
return true;
}
});
Application.DashBoardForm= Ext.extend(Ext.FormPanel, {
border:false
,initComponent:function() {
var config = {
labelWidth: 125,
frame: true,
title: 'Date Range',
bodyStyle:'padding:5px 5px 0',
width: 350,
defaults: {width: 175},
defaultType: 'datefield',
items: [{
fieldLabel: 'Start Date',
name: 'fromdate',
id: 'fromdate',
vtype: 'daterange',
value : new Date(),
endDateField: 'todate' // id of the end date field
},{
fieldLabel: 'End Date',
name: 'todate',
id: 'todate',
vtype: 'daterange',
value : new Date(),
startDateField: 'fromdate' // id of the start date field
}]
,buttons: [{
text: 'Go',
onClick : function () {
// here i want to access the value of the form field
// how can i access the fromdate value so that i pass it to grid
console.log(this.getForm());
var win = new Ext.Window({
items:{xtype:'DashBoardGrid',fromdate:this}
});
win.show();
}
}]
}; // eo config object
// apply config
Ext.apply(this, Ext.apply(this.initialConfig, config));
Application.DashBoardForm.superclass.initComponent.apply(this, arguments);
} // eo function initComponent
,onRender:function() {
// this.store.load();
Application.DashBoardForm.superclass.onRender.apply(this, arguments);
} // eo function onRender
});
Ext.reg('DashBoardForm', Application.DashBoardForm);
如何在 onclick 函数中传递起始日期的值?
I am using this article of architecture http://blog.extjs.eu/know-how/writing-a-big-application-in-ext/
in my code:
I have this Application.DashBoardForm.js in this i want to pass the value of the fromdate in the onclick event function , how can i pass the fromdate value ?
Ext.apply(Ext.form.VTypes, {
daterange : function(val, field) {
var date = field.parseDate(val);
if(!date){
return false;
}
if (field.startDateField) {
var start = Ext.getCmp(field.startDateField);
if (!start.maxValue || (date.getTime() != start.maxValue.getTime())) {
start.setMaxValue(date);
start.validate();
}
}
else if (field.endDateField) {
var end = Ext.getCmp(field.endDateField);
if (!end.minValue || (date.getTime() != end.minValue.getTime())) {
end.setMinValue(date);
end.validate();
}
}
/*
* Always return true since we're only using this vtype to set the
* min/max allowed values (these are tested for after the vtype test)
*/
return true;
}
});
Application.DashBoardForm= Ext.extend(Ext.FormPanel, {
border:false
,initComponent:function() {
var config = {
labelWidth: 125,
frame: true,
title: 'Date Range',
bodyStyle:'padding:5px 5px 0',
width: 350,
defaults: {width: 175},
defaultType: 'datefield',
items: [{
fieldLabel: 'Start Date',
name: 'fromdate',
id: 'fromdate',
vtype: 'daterange',
value : new Date(),
endDateField: 'todate' // id of the end date field
},{
fieldLabel: 'End Date',
name: 'todate',
id: 'todate',
vtype: 'daterange',
value : new Date(),
startDateField: 'fromdate' // id of the start date field
}]
,buttons: [{
text: 'Go',
onClick : function () {
// here i want to access the value of the form field
// how can i access the fromdate value so that i pass it to grid
console.log(this.getForm());
var win = new Ext.Window({
items:{xtype:'DashBoardGrid',fromdate:this}
});
win.show();
}
}]
}; // eo config object
// apply config
Ext.apply(this, Ext.apply(this.initialConfig, config));
Application.DashBoardForm.superclass.initComponent.apply(this, arguments);
} // eo function initComponent
,onRender:function() {
// this.store.load();
Application.DashBoardForm.superclass.onRender.apply(this, arguments);
} // eo function onRender
});
Ext.reg('DashBoardForm', Application.DashBoardForm);
How can I pass the value of from date here in onclick function?
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由于您为该字段指定了“fromdate”的 ID,因此您可以使用 Ext.getCmp() 引用它,并从那里调用其 getValue() 方法:
Being that you gave the field an ID of 'fromdate', you can reference it using Ext.getCmp() and from there call its getValue() method:
设置按钮“Go”的范围,以便您可以在处理程序方法中访问表单。通过这样做,您将可以从处理程序方法访问表单。
现在,要访问表单元素,您可以使用
ref
属性或使用Ext.form.FormPanel
中提供的find*()
方法获取表单元素。使用 ref 属性时,为 formdata 字段设置 ref:
并且您应该能够通过处理程序中的表单对象访问表单元素。
Set the scope of your button 'Go', so that you will have access to form within the handler method. By doing this, you will have access to the form from the handler method.
Now, to get access to the form element, you can use
ref
property or usefind*()
methods available inExt.form.FormPanel
to get the form element.When using ref property, set a ref for the formdata field:
And you should be able to access the form element through the form object in the handler.