How to add names selected in a combo box to a text box 3

Boblevien · Nov 24, 2000

Can anyone advise how I can display a list of names in a combo box and add (multiple) selected names to a textbox, delimited by a ';' (semi-colon)? I am trying to build a list of email addresses to pass to a CDONTS mail object.

Cheers,

Bob Levien.

swilliams · Nov 25, 2000

Try this:

1. Put the following code in the <HEAD> tags in your page:

<script language="JavaScript">
function append_name(){
var bContinue
var NewName
var SelectedNames
var AlreadySelected
bContinue=true
if (bContinue==true){
if (document.frmTest.cboList.value=="NoSelection&quot{
bContinue=false
}
}
if (bContinue==true){
NewName=document.frmTest.cboList.value;
SelectedNames=document.frmTest.txtNames.value;
AlreadySelected = SelectedNames.indexOf(NewName);
if (AlreadySelected>-1){
bContinue=false
}
}
if (bContinue==true){
if (document.frmTest.txtNames.value!="&quot{
document.frmTest.txtNames.value=document.frmTest.txtNames.value+";"+document.frmTest.cboList.value
} else {
document.frmTest.txtNames.value=document.frmTest.cboList.value
}
}
}
</script>

2. put the following code inside the <SELECT> tag:

onchange="append_name(); return true"

so that the <SELECT> tag will look something like this:

<select name="cboList" onchange="append_name(); return true">

3. Make the first entry in the list a dummy entry, which does not have an e mail address, but has the value NoSelection
IE make the first <Option> tag something like this:

<option value="NoSelection">Select Recipients

NOTE: It is very important that you have the first option in the select list, as then the first e mail address is not selected by default and the change event of the list box will be fired when selecting the first e mail address.
Code within the JavaScript function deals with the user selecting the non-valid e mail address entry

As an example of a complete page, you could have something like this:

<HTML>
<HEAD>
<script language="JavaScript">
function append_name(){
var bContinue
var NewName
var SelectedNames
var AlreadySelected
bContinue=true
if (bContinue==true){
if (document.frmTest.cboList.value=="NoSelection&quot{
bContinue=false
}
}
if (bContinue==true){
NewName=document.frmTest.cboList.value;
SelectedNames=document.frmTest.txtNames.value;
AlreadySelected = SelectedNames.indexOf(NewName);
if (AlreadySelected>-1){
bContinue=false
}
}
if (bContinue==true){
if (document.frmTest.txtNames.value!="&quot{
document.frmTest.txtNames.value=document.frmTest.txtNames.value+";"+document.frmTest.cboList.value
} else { document.frmTest.txtNames.value=document.frmTest.cboList.value
}
}
}
</script>
</HEAD>
<BODY>
<form name="frmTest" action="test2.asp" method="POST">
<select name="cboList" onchange="append_name(); return true">
<option value="NoSelection">Select Recipients
<option value="email1">name1
<option value="email2">name2
<option value="email3">name3
<option value="email4">name4
<option value="email5">name5
<option value="email6">name6
<option value="email7">name7
<option value="email8">name8
<option value="email9">name9
</select><BR><BR><BR>
<input type="text" name="txtNames" size="80">
</form>
</BODY>
</HTML>

Simon

Boblevien · Nov 27, 2000

Hi Simon,

Just want to say that your help was right on target - exactly what I was trying to achieve. I didn't expect anything half so detailed - thanks very much.

Bob Levien

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How to add names selected in a combo box to a text box 3

Boblevien

Technical User

swilliams

Programmer

Boblevien

Technical User

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