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adly3000

Make One Checkbox Checks All The Others thats a tutorials and not a question

By adly3000, in Programming

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adly3000    0

adly3000
Posted

i learned the last night a new trick so i write it to you, may help you later:
1- that makes the upper checkbox check or uncheck all the other check boxes.
2- on check or uncheck the bg of that checkbox will change.
you may say it's easy but i used array name in the checkboxes whcih makes it difficult really ver difficult.(mmmm.. so ask why i choosed the hard way instead of naming my checkboxes box1,box2,...etc., cuz i use php code and i need to make an array for later use.)
and here's the code:

<html><head><title>Untitled Document</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><script language="JavaScript">function check(){	var length = document.form1.elements.length;	if (document.form1.checkall.checked==1)	{		for (i=length-1; i>0; i--)		{			var e = document.form1.elements[i];			if (e.type=='checkbox' && e.name.indexOf("dmsg") != -1)			{				e.checked=1;				var msgno = 'msg'+i;				changebg(e, msgno);			}		}	}	else	{		for (i=length-1; i>0; i--)		{			var e = document.form1.elements[i];			if (e.type=='checkbox' && e.name.indexOf("dmsg") != -1)			{				e.checked=0;				var msgno = 'msg'+i;				changebg(e, msgno);			}		}	}}function changebg(row, msgno){	var checkrow = row;	if (checkrow.checked == 1)	{		document.getElementById(msgno).bgColor="#66CCFF";	}	else	{		document.getElementById(msgno).bgColor="#FFFFFF";	}}</script></head><body><form name="form1" method="post" action="">  <table width="100%" border="0" cellspacing="0" cellpadding="0">	<tr> 	  <td align="center"><input type="checkbox" name="checkall" value="checkbox" onClick="check();"></td>	  <td> </td>	</tr>	<?	for ($x=10; $x>0; $x--)	{	?>	<tr id="msg<? echo $x; ?>">	  <td align="right" style="bgcolor: #ff0000"><input type="checkbox" name="dmsg[]" value="<? echo $x; ?>" onClick="changebg(this, 'msg<? echo $x; ?>');"></td>	  <td>box <? echo "$x"; ?></td>	</tr>	<?	}	?>  </table></form></body></html>
i hope that may help you in future.
Ahmed;

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iGuest    3

iGuest
Posted
how to convert checkbox array to String array?Make One Checkbox Checks All The Others

Hi,

 Iam getting a problem converting from checkbox arrayto string array.

Give me suggestion.

Thanks in advance. 

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