Alpha Software Mobile Development Tools:   Alpha Anywhere    |   Alpha TransForm subscribe to our YouTube Channel  Follow Us on LinkedIn  Follow Us on Twitter  Follow Us on Facebook



The Alpha Software Forum Participation Guidelines

The Alpha Software Forum is a free forum created for Alpha Software Developer Community to ask for help, exchange ideas, and share solutions. Alpha Software strives to create an environment where all members of the community can feel safe to participate. In order to ensure the Alpha Software Forum is a place where all feel welcome, forum participants are expected to behave as follows:
  • Be professional in your conduct
  • Be kind to others
  • Be constructive when giving feedback
  • Be open to new ideas and suggestions
  • Stay on topic

Be sure all comments and threads you post are respectful. Posts that contain any of the following content will be considered a violation of your agreement as a member of the Alpha Software Forum Community and will be moderated:
  • Spam.
  • Vulgar language.
  • Quotes from private conversations without permission, including pricing and other sales related discussions.
  • Personal attacks, insults, or subtle put-downs.
  • Harassment, bullying, threatening, mocking, shaming, or deriding anyone.
  • Sexist, racist, homophobic, transphobic, ableist, or otherwise discriminatory jokes and language.
  • Sexually explicit or violent material, links, or language.
  • Pirated, hacked, or copyright-infringing material.
  • Encouraging of others to engage in the above behaviors.

If a thread or post is found to contain any of the content outlined above, a moderator may choose to take one of the following actions:
  • Remove the Post or Thread - the content is removed from the forum.
  • Place the User in Moderation - all posts and new threads must be approved by a moderator before they are posted.
  • Temporarily Ban the User - user is banned from forum for a period of time.
  • Permanently Ban the User - user is permanently banned from the forum.

Moderators may also rename posts and threads if they are too generic or do not property reflect the content.

Moderators may move threads if they have been posted in the incorrect forum.

Threads/Posts questioning specific moderator decisions or actions (such as "why was a user banned?") are not allowed and will be removed.

The owners of Alpha Software Corporation (Forum Owner) reserve the right to remove, edit, move, or close any thread for any reason; or ban any forum member without notice, reason, or explanation.

Community members are encouraged to click the "Report Post" icon in the lower left of a given post if they feel the post is in violation of the rules. This will alert the Moderators to take a look.

Alpha Software Corporation may amend the guidelines from time to time and may also vary the procedures it sets out where appropriate in a particular case. Your agreement to comply with the guidelines will be deemed agreement to any changes to it.

Bonus TIPS for Successful Posting

Try a Search First
It is highly recommended that a Search be done on your topic before posting, as many questions have been answered in prior posts. As with any search engine, the shorter the search term, the more "hits" will be returned, but the more specific the search term is, the greater the relevance of those "hits". Searching for "table" might well return every message on the board while "tablesum" would greatly restrict the number of messages returned.

When you do post
First, make sure you are posting your question in the correct forum. For example, if you post an issue regarding Desktop applications on the Mobile & Browser Applications board , not only will your question not be seen by the appropriate audience, it may also be removed or relocated.

The more detail you provide about your problem or question, the more likely someone is to understand your request and be able to help. A sample database with a minimum of records (and its support files, zipped together) will make it much easier to diagnose issues with your application. Screen shots of error messages are especially helpful.

When explaining how to reproduce your problem, please be as detailed as possible. Describe every step, click-by-click and keypress-by-keypress. Otherwise when others try to duplicate your problem, they may do something slightly different and end up with different results.

A note about attachments
You may only attach one file to each message. Attachment file size is limited to 2MB. If you need to include several files, you may do so by zipping them into a single archive.

If you forgot to attach your files to your post, please do NOT create a new thread. Instead, reply to your original message and attach the file there.

When attaching screen shots, it is best to attach an image file (.BMP, .JPG, .GIF, .PNG, etc.) or a zip file of several images, as opposed to a Word document containing the screen shots. Because Word documents are prone to viruses, many message board users will not open your Word file, therefore limiting their ability to help you.

Similarly, if you are uploading a zipped archive, you should simply create a .ZIP file and not a self-extracting .EXE as many users will not run your EXE file.
See more
See less

SignatureCapture type error

  • Filter
  • Time
  • Show
Clear All
new posts

  • SignatureCapture type error

    Hi - any help on this much appreciated

    I've got a mobile app syncing to MS-SQL. The app has a signaturecapture UX. If I don't touch the signature but make the data dirty and then try to sync I get the following error

    implicit conversion from data type varchar to varbinary(max) is not allowed

    If I give it a signature, even if I then clear it, all is well and it syncs - any idea how to get round this???

  • #2
    Re: SignatureCapture type error

    Could be a lot of things but I'd have a look at the NULL setting in the database or in the controls properties (last property available) checkbox NULL if blank - see if that fixes it.
    Insanity: doing the same thing over and over again and expecting different results.
    Albert Einstein, (attributed)
    US (German-born) physicist (1879 - 1955)


    • #3
      Re: SignatureCapture type error

      What build of Alpha are you using? Stuff like this may be good in one release, break in the next, and be fixed in the next. The build you're working with is important to know.
      Last edited by Davidk; 11-29-2019, 12:10 AM.


      • #4
        Re: SignatureCapture type error


        I'm build 5887. TBH I was thinking to myself "I'm sure this used to work..." however updating is non-trivial - there's a lot of mobile devices to coordinate and update

        I tried the NULL setting in both the field mapping and the control but it made no difference (good idea though!). Its weird 'cause I'm getting reports it doesn't do this in the live environment but in my dev its black and white: save without touching the signature, sync **BOOM** type error.

        I've tried everything I can think of so if nobody's got a better idea I'll to update and cross my fingers


        • #5
          Re: SignatureCapture type error

          Quick and sad update : updated to the latest build 6232 and it still does it

          Anyone got any other ideas? I'm getting desperate here....


          • #6
            Re: SignatureCapture type error

            You'd have to post a sample. There are 2 signature controls. It's impossible to know how you've set this up... and so impossible to even try and duplicate it.

            Build a simple example using a simple table. If it fails, then post the component along with a description of the table and fields. Then it can tested.


            • #7
              Re: SignatureCapture type error

              I haven't messed with signatures too much, but I assume they are similar to images. We were having problems a while back when attempting to sync an image that is a detail view field of a list. We added the record to the list programmatically using addTableRow. I found that the only way I could get the image so sync is if I first initialized the field to an empty string when doing the addTableRow. Not sure if this is helpful to you or not but just thought I would throw it out there.


              • #8
                Re: SignatureCapture type error

                I've fixed it myself after a fashion.. I put the following code into my "Save" button

                The clear stops a previously entered signature being re-entered if its left blank on a subsequent form
                Note that the ID (i.e. name) of the control is case sensitive and must all in UPPERCASE (that took me a while suss!)


                • #9
                  Re: SignatureCapture type error

                  nice - well done
                  Insanity: doing the same thing over and over again and expecting different results.
                  Albert Einstein, (attributed)
                  US (German-born) physicist (1879 - 1955)