Treeview Parent-Child

[JJ]

Hi All,

I am trying to Add nodes in code behind and am having
problems with the parent child relationships. I get a Use
of unassigned local variable error . I have the local
variables defined and in my switch statement I build the
parent Nodes and have children created off of them. What
am I doing wrong? Here is the code:

TreeNode tnode = new TreeNode("Employees");

tvEmps.Nodes.Add(tnode);

tvEmps.ExpandAll();

foreach(DataRow dro in Emp.Rows)

{

if (iEmpNum != (int)dro["Employer#"])

{

sEmpName = (string)dro["Employer_Name"];

switch ((int)dro["Employer#"])

{

case 1:

tnIPCons = new TreeNode(sEmpName);

tnIPCons.Nodes.Add(sEmpName);

break;

case 2:

tnTemps = new TreeNode(sEmpName);

tnTemps.Nodes.Add(sEmpName);

break;

case 3:

tnPenComp = new TreeNode(sEmpName);

tnPenComp.Nodes.Add(sEmpName);

break;

}

}

sEmpRec = dro["LastName"] + ", " + dro
["FirstName"] ;

switch ((int)dro["Employer#"])

{

case 1:

tnIPCons.Nodes.Add(sEmpRec); < ---
"ERROR Happens On these lines"

break;

case 2:

tnTemps.Nodes.Add(sEmpRec); < ---
"ERROR Happens On these lines"

break;

case 3:

tnPenComp.Nodes.Add(sEmpRec); < ---
"ERROR Happens On these lines"

break;

}
If this is not the right way to create Parent-Child
relationships, what is the right way?

Thanks,
JJ