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How do I allow the user to set a file location and name and store it

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    How do I allow the user to set a file location and name and store it

    This is my first time posting here. I'm a new Alpha Five user and have been able to work out most of my needs so far on my own. I'm trying to figure out how to allow the user to view files located somewhere on the network (different locations every time) and then store that file location and filename in a field to use the next time they want to view the file within my web app. Setting up a link control doesn't work because they can't do a windows explorere type search for the document. It looks like sys_open only works for desktop apps, and doesn't allow the user to navigate to the file they want to look at. I've tried setting up an action for a button which opens a pdf file, but that doesn't allow for other file types or for the user to specify where the file is located. Any ideas on how to accomplish this? It seems like a pretty standard thing but I just can't find a solution that works for me.

    Thanks in advance for any help you can offer!
    Lisa

    #2
    Re: How do I allow the user to set a file location and name and store it

    Hello Lisa,
    Welcome to Alpha5! From within a browser you cannot access local resources because of security. This is a browser limitation. However you can access network locations if you use a URL. For example if you have a server called "Myserver" and a shared folder "MyStuff" then you could browse to it with your browser as follows: file://///Myserver/MyStuff
    You can create a calculated field to concatenate the field with a field that contains the prefix (file://///) and use that with a link control
    Be sure to test in all browsers.
    Frank

    Tell me and I'll forget; show me and I may remember; involve me and I'll understand

    Comment


      #3
      Re: How do I allow the user to set a file location and name and store it

      Frank,

      Thanks for the quick information. I know this has to be a ridiculously novice question, but when you say to make a calculated field, where would I do that? I've made calculated fields in my table queries, and I've managed to make use of session variables, but I know I'm missing something here. I want to have a field where a location could be entered (and I realize I can concatenate a value to it), and then a link to open the file in a browser (like you suggested). I don't see where I can create a calculated field to put on my detail view as a link control. I know I have a lot to learn here!

      Comment


        #4
        Re: How do I allow the user to set a file location and name and store it

        Lisa,

        I think you are using SQL server ? In SQL management studio create a field (in my example 'url') with a computed column specification:

        cf.png

        Use that field in your grid with a control of type 'Link':

        cf3.png

        And you get this:

        cf2.png

        If you are using a DBF then you can create calculated fields in the query section of the grid builder:

        cf4.png
        Frank

        Tell me and I'll forget; show me and I may remember; involve me and I'll understand

        Comment


          #5
          Re: How do I allow the user to set a file location and name and store it

          Thanks so much, Frank. I am using dbf and the query was the only way I had figured out how to use a calculated field; I wasn't sure if there was another way. Is there a way to let the user do an explorer type navigating to the file I want to load in the browser? I'd like to let them navigate to the file and then I'd store that path and file name in my field (to later load in the browser).

          Lisa

          Comment


            #6
            Re: How do I allow the user to set a file location and name and store it

            However you can access network locations if you use a URL. For example if you have a server called "Myserver" and a shared folder "MyStuff" then you could browse to it with your browser as follows: file://///Myserver/MyStuff
            That would be cool, but you cannot do that. You can if you enter the address directly in your browser on your network, but you can only directly open files IN THE WEBROOT through a website.
            Last edited by Steve Wood; 02-10-2012, 10:57 AM.
            Steve Wood
            See my profile on IADN

            Comment


              #7
              Re: How do I allow the user to set a file location and name and store it

              Steve,

              You are so right; I only tested that in LivePreview... The only way then would be if the files are for example hosted on a NAS with http service I guess.
              Frank

              Tell me and I'll forget; show me and I may remember; involve me and I'll understand

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