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My sample:
Parameters:
Please feel free to correct me if I am using a different data structure than yours.
Regarding the first question, on the screenshot you provided it looks like it hasn't finished loading yet, do you have a large amount of data? If you want the parameter to allow null values, then you can choose the option as shown below.
Regarding your second question, the following testing is for your reference.
The Value parameter is set as below.
Output:
When I entered the new ID and then clicked on the blank space.
Best Regards,
Yulia Xu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Hello, @Yulia Xu
Thank you for looking into the issue; I appreciate it. However, the problem I'm experiencing is slightly different. For your reference, please review the attached video, along with some details related to the issue.
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1. Required Issue by pressing enter key
2. When entering a CaseID = 2104, parameter ClassMember = 'Total Class Members-2104' is loaded but
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