Do the following, where tfsUri
is the location of the collection, and tfsProjectName
is the name of the project:
var tfsTeamProjectCollection = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(tfsUri);
var tfsTestManagementService = tfsTeamProjectCollection.GetService<ITestManagementService>();
var tfsTestManagementTeamProject = tfsTestManagementService.GetTeamProject(tfsProjectName);
var tfsTestPlans = tfsTestManagementTeamProject.TestPlans.Query("SELECT * FROM TestPlan");
foreach (var tfsTestPlan in tfsTestPlans)
{
tfsTestPlan.Delete(DeleteAction.ForceDeletion);
}