How can we have transient variable value as a parameter for an attribute?

Hi,
I am using JDev 11.1.1.2 with ADF11g.
I have a requirement where I have to display a table with many columns. One of the columns is a drop down whose values are fetched from DB. This is a non-DB item and so becomes a transient variable of the VO.
There is another column/attribute of the VO that has to first pick the value of the transient variable and display values in the LOV.
How can this be achieved? Do we have an example link for this?

Hi simanta,
According to your description that you are experiencing the issue with passing one textbox's values as parameter to another textbox, you got some errors, right?
I have tested on my local environment and can reproduce your issue, your issue can be caused by the invalid expression you have added in the parameter for textbox1, you have mentioned that the textbox1 have just one value, for example, if you specify
the default value and available value using this expression "=first(Fields!Yourfields.Value, "DataSet2")" you will get this kind of error.
So, I suggest you not using the expression in the parameter, you can add condition in the query to get the proper value for textbox1, you said you also try to create an dataset for textbox1 but not getting the proper values of textbox1, please reference
to details information below to check if you have done the right actions:
Create an Dataset(Dateset2) to get the value for textbox1:
I suppose you want to get the first values from the table, you can use query below instead of the using expression:
Select Top 1 amount from tablename2
Add the parameter(Param1) for textbox1, specify both the available values and default values by select the "Get values from a query" (DataSet2)
In the main dataset(Dataset1), add the filter like below to display the textbox2's values which are greater than Textbox1:
You can also filter the data by modify the query of Dataset1:
SELECT * FROM TableName1
where SalesAmount >(@Param1)
If you problem still exists, please try to provide information below to help us more effective to provide an solution:
How did you get the value for textbox1(Please provide all the expressions or the dataset query you are currently using)
How did you add the filter to filter the Textbox2 which greater than textbox1?
Any problem, please free to ask.
Regards
Vicky Liu

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