我在ASP.net应用程序中使用Page.ClientScript.RegisterHiddenField(hf_Name,值),如何覆盖或后面分配一个新的价值在code相同的隐藏字段'hf_Name?
I am using Page.ClientScript.RegisterHiddenField("hf_Name",value) in an ASP.net application, how to override or assign a new value to the same Hidden Field 'hf_Name' in code behind?
RegisterHiddenField
不创建一个服务器端控制,它只是
创建一个普通的老<输入类型=隐藏名称=myhiddenField>
RegisterHiddenField
doesn't create a server side control, it just
creates a plain-old <input type="hidden" name="myhiddenField">
Page.FindControl(myhiddenField)
将永远找不到的服务器端,甚至的document.getElementById(myhiddenField)会没事就客户方返回,因为只有名称,而不是ID分配。
Page.FindControl("myhiddenField")
will never find anything on serverside and even document.getElementById("myhiddenField")
will return nothing on clientside since only the name and not the id is assigned.
所以,如果你需要访问它在服务器端,你应该使用的 HiddenField
服务器控件或至少使用 HTML输入
类型=隐藏
与 =服务器
。
So if you need to access it on serverside, you should use a HiddenField
server control or at least use a html-input
type=hidden
with runat="server"
.