Problem with get ParameterValues function
Hi all (again!),
I have two jsp files (a.jsp, b.jsp). In a.jsp i have the following code:
for (int i = 0, i < rows; i++){
out.print("<tr>");
out.print("<td><form><input type=checkbox name=checkbox value=checkbox onClick=enableTxtField("+j+")></form></td>");
out.print("<td><div align=center>"+products[i][0]+"</div></td>");
out.print("<td><div align=center>"+products[i][1]+"</div></td>");
out.print("<td><div align=center>"+products[i][3]+"</div></td>");
out.print("<td><div align=center>"+products[i][2]+"</div></td>");
out.print("<td><div align=center>"+products[i][4]+"</div></td>");
out.print("<td><form><div align=center><input type=\"text\" name=\"textfield\" disabled></div></form></td>");
out.print("</tr>");
}
then i want in b.jsp to retrieve the values of all textfields.
I tried using get parameter values like:
[code]
String[] passname;
passname = request.getParameterValues("param");
if (passname==null) out.print("hahaha");
else out.print(passname.length);
but i always get passname to null.
Can anyone tell me why this is happening.
# 1
Hi! int thextfield tag you have name=\"textfield\"
in b.jsp you have request.getParameterValues("param");
but in a.jsp file you don't have parameter name "param", for getting the textfield value you need to use request.getParameterValues("textfield");
but your textfield tag is disabled and have no value, you will gon empty String.
# 2
Well thanks for the reply.
I have made an error (copy paste error). I have changed my original post. I have the same value requested and set in both a and b.jsp.
This doesn't work as you said because my textfield are disable.
however before post my form, i have a javascript function that enables the textfield when the coresponding checkbox is checked. So why am i still getting null when i have given input?
I repost my correct code here:
for (int i = 0, i < rows; i++) {
out.print("<tr>");
out.print("<td><form><input type=checkbox name=checkbox value=checkbox onClick=enableTxtField("+j+")></form></td>");
out.print("<td><div align=center>"+products[i][0]+"</div></td>");
out.print("<td><div align=center>"+products[i][1]+"</div></td>");
out.print("<td><div align=center>"+products[i][3]+"</div></td>");
out.print("<td><div align=center>"+products[i][2]+"</div></td>");
out.print("<td><div align=center>"+products[i][4]+"</div></td>");
out.print("<td><form><div align=center><input type=\"text\" name=\"textfield\" disabled></div></form></td>");
out.print("</tr>");
}
String[] passname;
passname = request.getParameterValues("textfield");
if (passname==null) out.print("hahaha");
else out.print(passname.length);
