System.Web.HttpCompileException (0x80004005): d:\WebSite\files\honarland\modules\m_17366_LmsLessonPayment.ascx(49): error CS1061: 'ASP.files_honarland_modules_m_17366_lmslessonpayment_ascx' does not contain a definition for 'btnPayment_Click' and no extension method 'btnPayment_Click' accepting a first argument of type 'ASP.files_honarland_modules_m_17366_lmslessonpayment_ascx' could be found (are you missing a using directive or an assembly reference?) at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at Rayan.Web.Modules.BaseSystem.UserModuleLoader.OnInit(EventArgs e) ثبت نام در كلاس