如何使用javascript更改文本框值

问题描述：

我的JavaScript函数..

My JavaScript Function..

var e = document.getElementById(id);
		if(e.style.display == 'block' || e.style.display=='')
			document.getElementById("TextBox1").value="show";
		else
			document.getElementById("TextBox1").value="hide";
			}

有任何帮助..

Any Help..

答

您到底想要什么?但是您的问题标题是答案

what you want exactly ? but with your Question title here is answer

document.getElementById("TextBox1").value="show";

给用作值的字符串加上双引号.

give double Quotes to string which used as value.

您是否有机会在应用程序中使用母版页(ASP.NET)?如果是，请检查这些

ID，ClientID和UniqueID之间的区别 [控制ASP.NET中的Web控件ClientID值 [

Are you using Master pages(ASP.NET) in your application by any chance? If yes then check these

The difference between ID, ClientID and UniqueID[^]
Take Control Of Web Control ClientID Values in ASP.NET[^]

document.getElementById(''< ％= TextBox1.ClientID％>'').value =''show'';

document.getElementById(''<%=TextBox1.ClientID%>'').value=''show'';

如何使用javascript更改文本框值

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