Filling data grid view

Question

Hi
 
I have a problem with updating my datagridview using data table . I am unable to get the select statement right .. Could some one help please
 
This is my xml fragment in question
 
<TestSuite> <TestGroup ID="1001" Description="Group1" ErrorCondition="Skip">
<TestCase ID="1001" Description="CT">
<TestStep Command="SetCT" ID="" Description="Set CT">
<Parameters>
  <Parameter Name="setCTRatio" Value="8232" Direction="Write" />

  </Parameters>


  </TestStep>


<TestStep Command="ReadCT" ID="" Description="Get CT">
<Parameters>
  <Parameter Name="getCTRatio" Direction="Read" />

  </Parameters>


  </TestStep>


  <ValidationCriteria>if setCTRatio == getCTRatio testResult.valid = true else testResult.valid = false end</ValidationCriteria>

  <ValidationError />

  </TestCase>


  </TestGroup>


  </TestSuite>
 
As u see there can be many test steps to each test case and each of the test steps has its own set of data .
 
I want to get the parameters pertaining to a test step that is clicked .
 
 
The data structure would be like this
Table "Parameters"
TestStep_Id Parameters_Id
0 0
1 1
 
Table Parameter
Parameters_Id Name Direction
0 A B
0 C D
1 E F
 
So if i clicked on TestStep "0" , then the query must pick up Parameters_Id from the table "Parameters" and retrieve only those rows of "Parameter" where Paramters_Id = "0";
 
I hope i am clear