Starting Workflow on Button Click

Here is a snippet which I created for one of my recent project

public void StartWorkFlow(string strListName, int intCurrentItemID, string strWorkflowName)
{
    SPSecurity.RunWithElevatedPrivileges(delegate()
    {
        using (SPSite objSite = new SPSite(SPContext.Current.Site.Url))
        {
            using (SPWeb objWeb = objSite.OpenWeb())
            {
                objWeb.AllowUnsafeUpdates = true;
                //get list
                SPList list = objWeb.Lists[strListName];
                //get list item
                SPListItem lstItem = list.GetItemById(intCurrentItemID);
                //obtain an instance of SPWorkflowManager which will be used to start the workflow
                SPWorkflowManager manager = objSite.WorkflowManager;
                //get all workflows associated with the list
                SPWorkflowAssociationCollection associationCol = list.WorkflowAssociations;
                //iterate through all the workflow and lookup for the workflow to be started
                foreach (SPWorkflowAssociation association in associationCol)
                {
                    if (association.Name == strWorkflowName)
                    {
                        //get workflow association data
                        string associationData = association.AssociationData;
                        //start the workflow
                        manager.StartWorkflow(lstItem, association, associationData);                                
                        break;
                    }
                }
                objWeb.AllowUnsafeUpdates = false;
            }
        }
    });
}