vb.net - Why is this VB code failing on me? -

-

hers form code:

imports techsupportdata  public class frmopenincidents  private sub frmopenincidents_load(byval sender system.object, byval e system.eventargs) handles mybase.load     dim incidentlist list(of incident)     try         incidentlist = incidentdb.getincidents         if incidentlist.count > 0             dim incident incident             integer = 0 incidentlist.count - 1                 incident = incidentlist(i)                 lvincidents.items.add(incident.productcode)                 lvincidents.items(i).subitems.add(incident.dateopened)                 lvincidents.items(i).subitems.add(incident.customerid)                 lvincidents.items(i).subitems.add(incident.techid)                 lvincidents.items(i).subitems.add(incident.title)             next         else             messagebox.show("all incidents taken care of")             me.close()         end if     catch ex exception         messagebox.show(ex.message, ex.gettype.tostring)         me.close()     end try end sub end class

and heres class working with:

imports system.data.sqlclient  public class incidentdb     public shared function getincidents() list(of incidentdb)         dim incidentlist new list(of incidentdb)         dim connection sqlconnection = techsupportdb.getconnection         dim selectstatement string _             = "select customerid, productcode, techid, dateopened, title" _             & "from(incidents)" _             & "where dateclosed null"         dim selectcommand new sqlcommand(selectstatement, connection)         try             connection.open()             dim reader sqldatareader = selectcommand.executereader()             dim incident incident             while reader.read                 incident = new incident                 incident.incidentid = reader("incidentid").tostring                 incident.customerid = reader("customerid").tostring                 incident.productcode = reader("productcode").tostring                 incident.dateopened = reader("dateopened").tostring             loop             reader.close()         catch ex exception             throw ex                     connection.close()         end try         return incidentlist     end function end class

heres error i'm getting visual studio:

error 1 value of type 'system.collections.generic.list(of techsupportdata.incidentdb)' cannot converted 'system.collections.generic.list(of techsupportdata.incident)'. c:\users\cody\desktop\school\current\itech4269 visual basic\assignment2codystewart\assignment2codysteawrt\assignment2codysteawrt\frmopenincidents.vb 8 28 assignment2codysteawrt

any guidance or suggestions appreciated, lot.

in class frmopenincidents you've defined incidentlist list of incidents:

dim incidentlist list(of incident)

then set it:

incidentlist = incidentdb.getincidents

but incidentdb method defined returning list of incident*db*:

public shared function getincidents() list(of incidentdb)

solution might change first definition this?

dim incidentlist list(of incidentdb)

you need choose name class - incident or incidentdb - , use consistently rid of similar errors.


Comments

Post a Comment

Popular posts from this blog

c# - How to set Z index when using WPF DrawingContext? -

-
how set z-index drawing object when using drawingcontext.drawxxx() methods? the object drawn last have higher z index. can't change index of drawn objects. way draw in order. if using wpf (as placed tag), can use, example, canvas control. create shapes need like polyline obj = new polyline(); //... // ... set properties of obj and add them canvas uielementcollection: yourcanvasname.children.add(obj); //or yourcanvasname.children.insert(i, obj); first items of collection have higher z index. advantages in way: no need redraw on window changes, can anytime move objects , change order.
Read more

razor - Is this a bug in WebMatrix PageData? -

-
i think may have found bug in webmatrix's pagedata, not sure. concerns how pass data partial page calling page. in webmatrix documentation (tutorials, e.g. " 3 - creating consistent look ", , example code), pagedata recommended mechanism pass data between pages (e.g. content page layout page, or partial page). however have found not work other way, pass data partial page calling page. modifying or adding entries in pagedata in partial page, not seem calling page. cutting right down simplest possible example, in test page may have this: @{ pagedata["test"] = "initial entry"; } <p>before calling partial page, test value @pagedata["test"]</p> @renderpage("_testpartial.cshtml") <p>after returning calling page, test value @pagedata["test"]</p> and in _testpartial.cshtml page might have this: @{ pagedata["test"] = "modified entry"; } <p>in partial page...
Read more

visual c++ - Using relative values in array sorting ( asm ) -

-
i need sort through array , sort each individual row in array in ascending order. doesn't seem going (surprise!) keep getting hit 2 errors: a2101: cannot add 2 relocatable labels , a2026: constant expected here's sort, makes sense me, think i'm still trying implement high-lvl language techniqes assembly. there way around not being able use relative values? (the array 7 rows 9 columns, btw). mov cx, 7; cx = number of rows outer: ; outer loop walk through rows push cx mov cx, 9 mov row, cx ;rows middle: ; middle-loop walk through columns push cx sub cx, 1 ;cx = cx-1 mov column, cx ;columns inner: ;inner loop - compare , exchange column values cmp marray[row*9 + column], marray[row*9 + column+1] xchg marray[row*9 + column+1], marray[row*9 + column] ; compare , exchange values marray table inc column loop inner pop cx loop mid...
Read more