String List Operations

internal static List<string> GetDeleteScriptBranchCommand(SourceControlBranchEntity sourceControlBranchEntity)

{
string commandString = String.Empty;

List<string> commandStringList = new List<string>();

List<SolutionEntity> solutionEntityList = SolutionComponent.GetExistingSolutionEntityListByBranch(sourceControlBranchEntity.SourceControlBranchOperationId);

List<string> oldServerName = new List<string>();

foreach (var solution in solutionEntityList)
{
if (!oldServerName.Contains(solution.SolutionName))
{
                   commandString = SourceControlScriptBranchCommands.GetDeleteScriptBranchCommands(sourceControlBranchEntity.SourceControlBranchName, ((SourceControlTeamProjectType)sourceControlBranchEntity.TeamProjectId).ToStringLocalized(), solution.SolutionType.Trim());
            commandStringList.Add(commandString);

}

               oldServerName.Add(solution.SolutionType.Trim());

}
           return commandStringList;
}