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How to register multiple JavaScript functions on a textbox in ASP.Net?

Posted on 2009-05-13
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Last Modified: 2013-11-07
How to register multiple JavaScript functions running on a textbox in ASP.Net?
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Question: Im using a Multiview control having six views. Each of the views has about 10 textboxes and from these 10 checkboxes, there are about 6 textboxes having JavaScript code for events such as onkeypress, onkeyup, onblur, oncopy, onpaste. Right now Im calling all the JavaScript functions from code-behind in Page_OnLoad as:
        Txtbox1.Attributes.Add(onkeypress, javascript: Function1();;
      Txtbox1.Attributes.Add(onkeyup, javascript: Function2();;
      Txtbox1.Attributes.Add(onblur, javascript: Function3();;
       Txtbox1.Attributes.Add(oncopy, return false;);
       Txtbox1.Attributes.Add(onpaste, return false;);

      Txtbox2.Attributes.Add(onkeypress, javascript: Function1();
      Txtbox2.Attributes.Add(onkeyup, javascript: Function2();
      Txtbox2.Attributes.Add(onblur, javascript: Function3();
       Txtbox2.Attributes.Add(oncopy, return false;);
      Txtbox2.Attributes.Add(onpaste, return false;);
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      Txtbox6.Attributes.Add(onkeypress, javascript: Function1();
      Txtbox6.Attributes.Add(onkeyup, javascript: Function2();
      Txtbox6.Attributes.Add(onblur, javascript: Function3();
       Txtbox6.Attributes.Add(oncopy, return false;);
       Txtbox6.Attributes.Add(onpaste, return false;);

Although this code works without any errors, the code looks so cluttered. So, Im just wondering if theres any other approach I can use to make my code look a lot cleaner than and not as repetitive as shown above for the 6 textboxes. Please help.
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Question by:pb102674
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GuitarRich earned 500 total points
ID: 24373589
if all the functions are the same you could create a method to add the javascript to a textbox parameter that is passed in like this:

private void AddJSToTextBox(TextBox txt)
{
      txt.Attributes.Add("onkeypress", "javascript: Function1();");
      txt.Attributes.Add("onkeyup", "javascript: Function2();");
      txt.Attributes.Add("onblur", "javascript: Function3();");
      txt.Attributes.Add("oncopy" , "return false;");
      txt.Attributes.Add("onpaste", "return false;");
}
 
// then call it like this:
AddJSToTextBox(Txtbox1);
AddJSToTextBox(Txtbox2);
AddJSToTextBox(Txtbox3);
......
AddJSToTextBox(Txtbox6);

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Author Comment

by:pb102674
ID: 24374375
Thanks for your response.  I appreciate it.

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Author Closing Comment

by:pb102674
ID: 31580907
Thanks for your help.
0

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