自定义控件(支持模板)（Custom controls (support templates)）.docVIP

自定义控件(支持模板)（Custom controls (support templates)） Custom controls (support templates) Again, the best part of this material is the video material I recommended at first. If there is no next, then quickly go down ~ ~ refers to which day, Microsofts Web site was attacked, closed down, there is no next. But then, if Microsoft goes bankrupt, why do we still learn.Net? No nonsense, lets get to the point. Any control can contain child controls. A control support template, in fact, is to add a child control inside it. What form does the template expose inside the control? Think about it. We can use a tag to specify attributes directly with a general control, and templates operate with tags. When you use a template, you assign a tag to the template, and any control can contain child controls, so you can also include controls in the template. Therefore, templates appear as attributes in the control definition. We are in the form of XML marker, therefore, using the template is actually a property to control this value given XML markers. Can you understand the words above? Look at the sign below. cc1:TemplateControl id=, TEM, runat=, server ITEMTEMPLATE asp:Button id= Button1 Text= %# Container.Text% Runat= server /asp:Button asp:Label ID= Label1 Text= %# Container.Text% Runat= server /asp:Labelbr divhello world! /div! /ITEMTEMPLATE /cc1:TemplateControl This is a custom control that supports templates and data binding. Its done like this. ITEMTEMPLATE is a ITemplate type property that enables controls to support templates as long as they are exposed externally. / / template Private ITemplate itemTemplate; Public ITemplate ItemTemplate { Get{return this.itemTemplate;} Set{this.itemTemplate=value;} } Set the properties, but also need to control a class level [ParseChildren (true)], XML will be used to specify the markup elements within the control as attribute, so that you can define your own templates in ITEMTEMPLATE tags. After doing this, the next step is to add the template