Start a Workflow Manually- Programatically

SPSecurity.RunWithElevatedPrivileges(delegate() 

                              { 

                                  //  

                                  using (SPSite site = new SPSite(SPContext.Current.Site.Url)) 

                                  { 

                                      using (SPWeb web = site.OpenWeb()) 

                                      { 

                                          SPUtility.ValidateFormDigest(); 

                                          SPList list = web.Lists["Implementation Details"]; 

                                          SPListItem lstitem; 

                                         

                                          SPQuery q = new SPQuery(); 

                                          q.Query = "<Where><Eq><FieldRef Name='KaizenID' /><Value Type='Text'>" + itemID + "</Value></Eq></Where>"; 

                                          SPListItemCollection collection = list.GetItems(q); 

  

                                          lstitem = collection[0]; 

                                          string GroupName = ddlKazienApprovelGroup.SelectedItem.Text.Trim(); 

                                          SPGroup group = web.Groups[GroupName]; 

  

                                          lstitem["Department"] = group; 

  

                                          web.AllowUnsafeUpdates = true; 

                                          lstitem.Update(); 

                                          web.AllowUnsafeUpdates = false; 

                                          UpdateKaizenTask(); 

                                          foreach (SPListItem listitem in collection) 

                                          { 

                                              SPWorkflowManager objWorkflowManager = null; 

                                              SPWorkflowAssociationCollection objWorkflowAssociationCollection = null; 

                                              objWorkflowManager = listitem.Web.Site.WorkflowManager; 

                                              objWorkflowAssociationCollection = listitem.ParentList.WorkflowAssociations; 

  

                                              foreach (SPWorkflowAssociation objWorkflowAssociation in objWorkflowAssociationCollection) 

                                              { 

                                                  web.AllowUnsafeUpdates = true; 

                                                  objWorkflowManager.StartWorkflow(listitem, objWorkflowAssociation, objWorkflowAssociation.AssociationData, true); 

                                                  web.AllowUnsafeUpdates = false; 

                                                  message = "\\\"Mail has been sent to " + mailUsers.TrimEnd('.') + ", Workflow started.\\\""; 

  

  

                                                  break; 

                                              } 

                                          } 

                                          

                                      } 

  

                                  } 

  

  

                              });