. Net+js example code for user input for Word tip function _ practical skills

The first step: The following is the core code, in the page reference or encapsulation can be.

Copy Code code as follows:

<script language= "javascript" type= "Text/javascript" >

function Textlimitcheck (Thisarea, MaxLength, Spanid)

{

if (ThisArea.value.length > MaxLength)

{

Thisarea.value = thisArea.value.substring (0, maxLength);

Thisarea.focus ();

}

/* Write back the value of span, currently fill in the text * *

var varss= ' (Remaining words: ' + (maxlength-thisarea.value.length) + ') ';

document.getElementById (Spanid). InnerHTML =varss;

}

</script>

Step Two: text box to apply this function

Copy Code code as follows:

<asp:textbox id= "Txtowner_name" runat= "width=" 250px "maxlength=" "onkeyup=" Textlimitcheck (this,50, ' Spowner_name ') "backcolor=" Info "></asp:TextBox>

<span id= "Spowner_name" style= "Color:gray" ><em> (within 50 words) </em></span>