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Setting a variable equal to the value of a textbox on an ASP page

I am needing to set a variable = to a textboxes value.

for instance i want:

Var1 = txtbox1.value but when I do that I get:

Microsoft VBScript runtime error '800a01a8'

Object required: ''

/energysystc/electricalppmChlorAlkali.asp, line 1573

and if I do:

 Var1 = txtbox1
the response.write returns nothing.

I am just looking for the proper sytax or method on doing this.
0
jlcannon
Asked:
jlcannon
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1 Solution
 
Scott Fell, EE MVEDeveloperCommented:
Will you please give some example code.

Do you want the the variable after the form is submitted?

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<%
var1=""
if request("textbox1")<>"" then
	var1=request("textbox1")
end if
%>
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>Untitled Document</title>
</head>
<h1>Var1 = 
<%
if var1<>"" then
	response.write var1
	else
	response.write "N/A. Please submit the form."
end if
%>
</h1>
<body>
<form name="form1" method="post" action="">
  <label for="textbox1"></label>
  <input type="text" name="textbox1" id="textbox1">
  <input name="Submit" type="submit" value="Submit">
</form>
</body>
</html>

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Scott Fell, EE MVEDeveloperCommented:
If you want to get the value of the the text box before the form is submitted you need to use javascript and lets say you will put that to a hidden field and a div.

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<%
var1=""
if request("textbox1")<>"" then
	var1=request("textbox1")
	hiddenfield=request("hidden1")
end if
%>
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>Untitled Document</title>
<script>
var1=    document.getElementById("textbox1").value;
document.getElementById("hidden1").value=var1;
document.getElementById("hiddenvalue").innerHTML=var1;
</script>
</head>
<h1>Var1 = 
<%
if var1<>"" then
	response.write var1
	response.write ". The vaule of the hidden field is "&hiddenfield
	else
	response.write "N/A. Please submit the form."
end if
%>
</h1>
<body>
<form name="form1" method="post" action="">
  <label for="textbox1"></label>
  <input type="text" name="textbox1" id="textbox1" value="hello">
  <input type="hidden" name="hidden1" id="hidden1">
  
  <input name="Submit" type="submit" value="Submit">
</form>
<h2>Just the value in a div</h2>
  <div id="hiddenvalue"></div>
</body>
</html>

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0
 
jlcannonAuthor Commented:
When I do the above it returns "N/A. Please submit the form" but there is clearly a number i the textbox so not sure why its not grabbing the number.
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Scott Fell, EE MVEDeveloperCommented:
I am used to doing this in jquery and it probably just needs a function.  What is it exactly you are trying to do.  "I am needing to set a variable = to a textboxes value."  Can you please give some sample code.

Are you trying to get a vbscript variable a value without submitting a form?  If so, what is the variable going to be used for?
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jlcannonAuthor Commented:
<td width="80%" class="tablesmall">
<input type="text" size="5" name="PPMNumber" id="PPMNumber" value=<%=rs.fields("Off-Line Inspection Period") %>>
<input type="hidden" size="5" name="OLInspect1" value=<%=rs.fields("Off-Line Inspection Period") %>>

<%
 
   
    PPMNum3 = OLInspect1
    response.write PPMNum3
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nap0leonCommented:
The input does not exist during server side execution.

If you are looping through rs.fields to set the values in your table and want to be able to use those values later on during your server-side script but do not want to keep the record set open, you should assign those items to a variable that can be referenced later.

(While you are writing out each row):
<% OffLineInspectionPeriod_1 = rs.fields("Off-Line Inspection Period") %>
<td width="80%" class="tablesmall">
<input type="text" size="5" name="PPMNumber" id="PPMNumber" value=<%=OffLineInspectionPeriod_1%>>
<input type="hidden" size="5" name="OLInspect1" value=<%=OffLineInspectionPeriod_1 %>>

...

<br/>OffLineInspectionPeriod_1 is still valid later: <b><% Reponse.Write OffLineInspectionPeriod_1 %></b>

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Or... use JavaScript to get the values that you placed into those specific fields:
<form name="goober">
<td width="80%" class="tablesmall">
<input type="text" size="5" name="PPMNumber" id="PPMNumber" value=3>
<input type="hidden" size="5" name="OLInspect1" value=3>
</td>
</form>
The value of the hidden input named "OLInspect1" is: 
<script>
oForm = document.forms.goober;
document.write(oForm.elements["OLInspect1"].value);
</script>

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jlcannonAuthor Commented:
works great, thank you
0

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