DBUtils.ExecuteListView parameter for the WHERE clause is not working

StackOverflow https://stackoverflow.com/questions/8195620

  •  04-03-2021
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سؤال

I would like to use the value from an EditText box to filter a ListView.

Can you look at my coding and let me know what else I need to do to get it to work?

So far it only returns 0 rows.

Sub ButtonSearchFilterEventHandler_Click
  ' Populate the list.
  '-------------------
  DBUtils.ExecuteListView(SQL, "SELECT Id, ResultDescription " & _
    "FROM VisitResultTypes " & _
    "WHERE ResultDescription = ? " & _
    "ORDER BY ResultDescription", _
    Array As String(EditTextResultDescription.Text), 0, _
    ListViewResults, True)
End Sub

Additional Sub routines:

Sub Activity_Create(FirstTime As Boolean)
  SQL.ExecNonQuery("CREATE TABLE VisitResultTypes " & _
    "(Id INTEGER PRIMARY KEY, ResultDescription TEXT)")
End Sub

This one works. It shows all table rows:

Sub PopulateTheListView
 ' Populate the list.
 '-------------------
 DBUtils.ExecuteListView(SQL, "SELECT Id, ResultDescription " & _
    "FROM VisitResultTypes " & _    
    "ORDER BY ResultDescription", _
    Null, 0, ListViewResults, True)
End Sub

I tried this but it returns all rows no matter what I type into the EditText box:

Sub ButtonSearchFilterEventHandler_Click
  ' Populate the list.
  '-------------------
  DBUtils.ExecuteListView(SQL, "SELECT Id, ResultDescription " & _
    "FROM VisitResultTypes " & _
    "WHERE ResultDescription LIKE ? " & _
    "ORDER BY ResultDescription", _
    Array As String(EditTextResultDescription.Text & "%"), 0, _
    ListViewResults, True)
End Sub

This one adds the data into the table:

SQL.ExecNonQuery2("INSERT INTO VisitResultTypes " & _ 
  "(Id, ResultDescription) " & _
  "VALUES " & _
  "(?, ?)", Array As Object(Null, EditTextResultDescription.Text))
هل كانت مفيدة؟

المحلول

Update - Issue Solved:

I added another EditText box and used this to get the filtering to work:

DBUtils.ExecuteListView(SQL, "SELECT Id, ResultDescription " & _
  "FROM VisitResultTypes " & _
  "WHERE ResultDescription LIKE " & "'" & EditTextSearchFilter.Text & "%' " & _
  "ORDER BY ResultDescription", Null, 0, ListViewResults, True)
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