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Forums > Product Discussion - DotNetNuke Modules > Dynamic Forms
Blank Drop Down from SQL Query
Last Post 05-24-2012 07:20 PM by Ryan Bakerink. 7 Replies.
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HeatherUser is Offline
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05-18-2012 05:33 AM
    Hi there,

    On my form I have a drop down thats SQL driven, I am using the query of SELECT DISTINCT(EmployeeName) FROM User_Access_Request_Form.  In my drop down I do see the field is getting something back from the query but its not visible on the form only a bunch of blank lines that do match the entries in the table.

    Is there another query that I need to add to this one to make the data visible?  I read something of cast and convert but not sure how to add those into my query string.

    Thanks,
    Heather
    HeatherUser is Offline
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    05-18-2012 06:07 AM
    I have tried all variations of these and still the dropdown retuns with blank lines...

    SELECT DISTINCT CAST (EmployeeName AS CHAR(500)) FROM User_Access_Request_Form
    SELECT DISTINCT CAST (EmployeeName AS NCHAR(500)) FROM User_Access_Request_Form
    SELECT DISTINCT CAST (EmployeeName AS VARCHAR(500)) FROM User_Access_Request_Form
    SELECT DISTINCT CAST (EmployeeName AS NVARCHAR(500)) FROM User_Access_Request_Form


    In my table its listed as NVARCHAR(500)
    Ryan BakerinkUser is Offline
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    05-18-2012 08:33 AM
    Hello Heather,

    When using SQL Driven options within a Combo Box you must return two columns of data named QuestionOption and QuestionOptionValue.

    For instance, try this query:

    SELECT DISTINCT CAST (EmployeeName AS CHAR(500)) As QuestionOption, CAST (EmployeeName AS CHAR(500)) As QuestionOptionValue FROM User_Access_Request_Form

    This query should work as long as you don't have any SQL Syntax Errors, which I don't see. However I have no way to know if the table name is correct "User_Access_Request_Form ". So make sure that you're referencing the correct table.

    Thanks,

    Ryan
    HeatherUser is Offline
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    05-21-2012 05:02 AM
    Hi Ryan,

    Thank you! That worked adding those column names in my query, now I can see the entries for that column in my drop down. 

    When I select that drop down I have configured a events to trigger the fields on my page to populate with information relating to that user from my table.  I'm using the following format in my SQL driven field to populate my Employment Type field, not sure if its correct:

    SELECT EmployType AS QuestionOptionValue, EmployType AS QuestionOption FROM User_Access_Request_Form Where EmployeeName = '()'

    It looks like the form is trying to process something but nothing is populating on the field.

    Should I be using this command in both the Question Events and the Advanced Field Options?

    Thanks,
    Heather
    HeatherUser is Offline
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    05-21-2012 05:50 AM
    I have changed my sql query and I can see the results when I test this in SQL Host but nothing is populating in the field for the results.

    SELECT EmployeeName AS QuestionOptionValue, FullPart AS QuestionOption FROM User_Access_Request_Form
    Ryan BakerinkUser is Offline
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    05-22-2012 10:38 AM
    If you're using Question Events on the page then you must add an additional Question Event that sets a default value on the field that the SQL Query is Dynamic to.

    SO if you have a hidden field named EmployeeName, you will need to use the same SQL Default query in a question event to set this value again. After a Question Event post back is initiated these values can be lost.

    Please let me know if you have any questions.

    Thanks,

    Ryan

    HeatherUser is Offline
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    05-22-2012 10:54 AM
    Hi Ryan,

    This form will have a comboBox to allow HR to choose an EmployeeName, onmce a name is chosen all the other fields should populate with the information for that employee that was last entered into table at an earlier time. Again, these fields will be setup as labels, or is that not going to work for this?

    Heather
    Ryan BakerinkUser is Offline
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    05-24-2012 07:20 PM
    Hello Heather,

    You're going to need to create multiple Question Events that set a default value on the fields based on the EmployeeName selected value.

    So for each field that is needed to display to show information based on the selected employeeName there will need to be a corresponding question event.

    Please let me know if this makes sense or if you have any questions.

    Thanks,

    Ryan
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