c# - Unrecognized Guid format -


i working on c# application getting error.

here stack track of error:

stack trace: @ system.guid.guidresult.setfailure(parsefailurekind failure, string failuremessageid, object failuremessageformatargument, string failureargumentname, exception innerexception) @ system.guid.tryparseguid(string g, guidstyles flags, guidresult& result) @ system.guid..ctor(string g) @ projects_addproject.wizcreateproject_activestepchanged(object sender, eventargs e) @ system.web.ui.webcontrols.wizard.onactivestepchanged(object source, eventargs e) @ system.web.ui.webcontrols.wizard.multiviewactiveviewchanged(object source, eventargs e) @ system.web.ui.webcontrols.multiview.onactiveviewchanged(eventargs e) @ system.web.ui.webcontrols.multiview.set_activeviewindex(int32 value) @ system.web.ui.webcontrols.wizard.set_activestepindex(int32 value) @ projects_addproject.proxy_navigate(object sender, historyeventargs e) @ system.web.ui.scriptmanager.raisenavigate(historyeventargs e) @ system.web.ui.scriptmanager.loadhistorystate(string serverstate) @ system.web.ui.scriptmanager.raisepostbackevent(string eventargument) @ system.web.ui.scriptmanager.system.web.ui.ipostbackeventhandler.raisepostbackevent(string eventargument)

from error happening when converting string guid. method occurs wizcreateproject_activestepchanged.it looks guid conversion issue.

here method generate error:

protected void wizcreateproject_activestepchanged(object sender, eventargs e)     {               switch (wizcreateproject.activestepindex)         {                        case 0:                 if (rbfrmtemp.checked)                 {                     int tenantid = tenantutils.gettenantid(page);                     ezproject templateproject = dbaccessprojects.getproject(tenantid, new guid(ddlprojtemplates.selectedvalue));                      txnme.text = templateproject.projectname;                     txdesc.text = templateproject.projectdescription;                     checkloadworktype(tenantid, ddlwrktype);                      if (templateproject.worktypeid != null)                     {                         listitem workitem = ddlwrktype.items.findbyvalue(templateproject.worktypeid.tostring());                         if (workitem != null)                         {                             ddlwrktype.selectedvalue = templateproject.worktypeid.tostring();                         }                     }                      if (templateproject.projecttype == (int)projecttype.reoccurring)                     {                         checkgroupedradiobutton(rbreoccurring);                         txbilfreq.text = templateproject.billingfrequency.tostring();                         if (templateproject.lastdate != null)                         {                             txtdate.text = ((datetime)templateproject.lastdate).toshortdatestring();                         }                         listitem prditem = ddlbilprd.items.findbyvalue(templateproject.billingperiod);                         if (prditem != null)                         {                             ddlbilprd.selectedvalue = prditem.value;                         }                         scriptmanager.registerclientscriptblock(uppnlproject, typeof(updatepanel), uppnlproject.clientid, "typechanged();", true);                          wizcreateproject.activestepindex = 2;                     }                     else                     {                         wizcreateproject.activestepindex = 3;                     }                     btnadd.visible = true;                 }                 else                 {                     if (rbreoccurring.checked)                     {                         scriptmanager.registerclientscriptblock(uppnlproject, typeof(updatepanel), uppnlproject.clientid, "typechanged();", true);                     }                 }                 break;             case 3:                 txnme.focus();                 scriptmanager.registerclientscriptblock(uppnlproject, typeof(updatepanel), uppnlproject.clientid, "initnames();", true);                 break;             default:                 break;         }     }

the error here:

ezproject templateproject           = dbaccessprojects.getproject(tenantid, new guid(ddlprojtemplates.selectedvalue));

you can see internally guid constructor using guid.tryparse() should doing. add validator ddlprojtemplates make required , need make sure contains valid guids.


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