使用Javascript进行C#文本框验证

问题描述

大家好，

我陷入了项目的一部分，即验证.我有一个带有文本框和下拉列表的设备输入字段.我编写了一个javascript，直到在ONE文本框中输入了某些内容后，才禁用提交按钮，但是如果其他字段为空，它只会使按钮保持打开状态.

我想让客户端在所有字段中输入，然后启用提交"按钮.

这是我写的Javascript

Hey guys,

I''m stuck on one part of my project, the validation. I have an Equipment entry field with text boxes and drop down lists. I''ve written a javascript that Disables the submit button until something is entered into ONE textbox, but then it just leaves the button open if the other fields are empty.

I want to have the client enter in all the fields then the submit button become enabled.

Here is the Javascript I have written

function Validate() {

      if (document.getElementById("<%=btnSubmit.ClientID%>").disabled == true) {
              var serial = document.getElementById("<%=btnSubmit.ClientID%>");
              serial.disabled = false;
          }

      }

我有5个文本框，我想确保在启用提交之前它们都包含文本.

我只有一个盒子有一条生产线，但是我不知道如何为许多盒子做这条生产线?

I''ve 5 text boxes and I want to ensure they all have text in them before the submit becomes enabled.

I have a line for just one box, but I don''t know how to do it for many boxes?

SerialNum.Attributes.Add("OnKeyDown", "Validate()");

有人可以为此提供帮助吗?页面加载中的Switch语句可能吗?如果是的话，我该怎么写才是最令人困惑的地方.如果您什至可以做2个文本框，我自己去做其余的事情.

谢谢你们，我希望这是有道理的，您可以提供帮助.

Would anyone be able to provide help for this? A Switch statement in the page load maybe? and if so HOW do I write it is the most confusing bit. If you could do even 2 text boxes I''d do the rest myself.

Thanks Guys and I hope this made sense and you can help out.

推荐答案

function Validate()
{
   var inputField1 = document.getElementById("<%=inputField1.ClientID%>");
   var inputField2 = document.getElementById("<%=inputField2.ClientID%>");
   if(inputField1.value.length > 0 && inputField2.value.length >  0)
      document.getElementById("<%=btnSubmit.ClientID%>").disabled = false;
   else
      document.getElementById("<%=btnSubmit.ClientID%>").disabled = true;
}

CodeBehind文件:

CodeBehind file:

inputField1.Attributes.Add("onblur", "Validate()");
inputField2.Attributes.Add("onblur", "Validate()");

这应该做.


P.S .:有一种方法可以使使用jQuery变得容易，但这需要一些知识.
PS2:也有验证程序控件，但是当前解决方案基于要求.

This should do.


P.S.: There is way to make it easy using jQuery but that would need a little knowledge about it.
P.S.2: There are validator controls too that does it but current solution is based on as asked.

function validation()
{
 if(

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