How to create file upload control in custom content model

[alfresco_shaikh]

Hi
I create custom model with some textboxes and drop down controls. But I want to create file upload control.How can i do this in alfresco 4.2.f?

can any one help me please?How can i create file upload in my custom content model??

Thanks in advance

[sanket]

One way is by associating file upload with the aspect (shown below).
I am not sure, whether we can do it by other way.

<aspect name="kb:ABC"><properties>  <property name="…" />  <property name="…" />  <property name="…" /></properties><associations>                        <association name="kb:XYZ">            <title>Upload</title>            <source>                  <mandatory>false</mandatory>                  <many>true</many>                   </source>                   <target>                  <class>cm:content</class>                  <mandatory>false</mandatory>                  <many>false</many>                 </target>            </association></associations></aspect>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[alfresco_shaikh]

Thanks for reply
I tried with association. but using that I can't upload file from my machine.I can just give file path from alfresco dashlet.