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Is it possible ?

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Oct 05.2005

Hello,

I need some help!

Is it possible to use a variable in lets say:
window.document.form.MyTextBox.value

For example I tried this way but it doesn’t work:
window.document.form.MyTextBox’+MyVariable+’.value

I need to do this for a validation template that contains some asp.
The asp complete the name of textbox with a code
Kind of like this:
window.document.form.MyTextBox3465234.value
window.document.form.MyTextBox7846894.value
window.document.form.MyTextBox1258457.value
And for my validation I have the values in variables but I don’t know how to use it.

So anyone knows a way?

Thanks

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JavaScript

5 Comments(s) ↴

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@FangOct 05.2005 — document.form.elements['MyTextBox'+MyVariable].value
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@KorOct 05.2005 — or:

document.getElementsByName('MyTextBox'+MyVariable)[0].value
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@skullmurdocauthorOct 05.2005 — document.form.elements['MyTextBox'+MyVariable].value[/QUOTE]

That was quick

thanks a lot
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@tabzterOct 06.2005 — or:

eval("document.form.MyTextBox"+MyVariable+".value");
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@KorOct 06.2005 — if possible, avoid using eval() function. eval() will always invoke the parser, so that it is sometimes dangerouse to evaluate un untrusted string. It might lock up the system resoures. Almost all the time it is better to use square brackets notation or DOM reference to evaluate dynamically a variable.
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