我有一个关于asp.net小写到大写的问题以及如何为此编写java脚本 [英] i have a question on asp.net lower case to upper case and how to write java script for that

问题描述

这是我的JAVASCRIPT

THIS IS MY JAVASCRIPT

<script language="javascript" type="text/javascript">
       function ToUpper(id) {
           document.getElementById(id).value = document.getElementById(id).value.toUpperCase();
       }
   </script>

我的问题是我输入总名称，如果我在中间输入另一个文本，它将变为大写

这封信的名字来自最后一个

例子



首次输入的名字

abc xyz

my problem is i enter total name and it will change to uppercase
if i enter another text in middle of name the letter is showed from last
example

first entered name
abc xyz

after i want to change name in mddle like bellow
abc defxyz
<pre lang="sql">if enter any two letters after one letter the blinking cursor go to last of name and loke bellow
abc d xyzef

怎么解决你能告诉我

how to solve can you tell me

推荐答案

问题是编辑文本输入值作为某人类型会将插入符号（光标）位置重置为新文本之后。



你需要A ：在更改文本之前到达插入符号位置; B：在更改文本后设置插入符号：

The issue is that editing the text inputs value as someone types will reset the caret (cursor) position to after the new text.

You need to A: Get where the caret is before changing the text and B: Set the caret after changing the text:

function A(element){
 //You will won't to add some error checking here - such as if(!element.selection) return 0;
 return element.selectionStart;
}

function B(element, caret){
 //Selecting a range with the same start and end will place the caret at that point
 element.setSelectionRange(caret,caret);
}

//just pass the element instead of id
function toUpper(element){
  var caret = A(this);
  this.value = this.value.ToUpperCase();
  B(this,caret);
}

哦，并传递整个元素（你不必去）：

Oh and pass the whole element (you don't HAVE to though):

<asp:textbox id="txtPatientname" runat="server" onkeyup="ToUpper(this)" cssclass="txtbox" font-names="Calibri" font-size="Medium" height="20px" maxlength="50" tabindex="6" tooltip="Patient name" width="175px" xmlns:asp="#unknown"></asp:textbox>

希望有所帮助：）

Hope that helps :)

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