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SortedList question(ShipmentNumber) for the key and a structure (AppointmentInfo) for the value. The structure memebers are strings, dates and intgers (i.e. no objects). I pass this sorted list by reference to a function. And do the following type of loop dim i as integer for i = 0 to ConflictList.count - 1 dim apt as AppointmentInfo = _ Ctype(ConflictList.GetByIndex(i), AppointmentInfo) < Here is my questions: After some processing I want to change the value of one of the memebers of the original sorted list...can I do it by simply assigning the new value to the variable I declared above?> apt.Door = theNewDoor <at this point is the original sorted list changed?> next I hope my question makes sense. I get totally confused with the reference/value/scope issues. Like a mind twister for me :>) TIA John Hi,
Instead of using a structure use a class. You will be able to change values in the sorted list if they contain a class. You will not be able to change the value in a structure. Public Class Info Public name As String Public AppointmentDate As DateTime Public Priority As Integer End Class Dim slClass As SortedList slClass = New SortedList Dim clsAi As New Info With clsAi .name = "Ken" .Priority = 1 .AppointmentDate = Now End With slClass.Add(1, clsAi) DirectCast(slClass.Item(1), Info).name = "New Name" Trace.WriteLine(DirectCast(slClass.Item(1), Info).name) Ken ----------------- "J L" <j***@marymonte.com> wrote in message I have a sortedlist (ConflictList) that contains a string identifiernews:0un0c15tim3ifm6ciutd9dbi33b7pil9pi@4ax.com... (ShipmentNumber) for the key and a structure (AppointmentInfo) for the value. The structure memebers are strings, dates and intgers (i.e. no objects). I pass this sorted list by reference to a function. And do the following type of loop dim i as integer for i = 0 to ConflictList.count - 1 dim apt as AppointmentInfo = _ Ctype(ConflictList.GetByIndex(i), AppointmentInfo) < Here is my questions: After some processing I want to change the value of one of the memebers of the original sorted list...can I do it by simply assigning the new value to the variable I declared above?> apt.Door = theNewDoor <at this point is the original sorted list changed?> next I hope my question makes sense. I get totally confused with the reference/value/scope issues. Like a mind twister for me :>) TIA John Thanks Ken,
I am trying that now. Can I create a variable that references the original class to keep from having so many DirectCast statements in my code? i.e. dim apt as Info = DirectCast(slClass.Item(1), Info) and now use apt.name = "New Name" etc. and have this updating the original class? Thanks again, John On Mon, 27 Jun 2005 17:23:24 -0400, "Ken Tucker [MVP]" <vb***@bellsouth.net> wrote: Show quoteHide quote >Hi, > > Instead of using a structure use a class. You will be able to >change values in the sorted list if they contain a class. You will not be >able to change the value in a structure. > > Public Class Info > Public name As String > Public AppointmentDate As DateTime > Public Priority As Integer > End Class > > > > > Dim slClass As SortedList > > > slClass = New SortedList > Dim clsAi As New Info > With clsAi > .name = "Ken" > .Priority = 1 > .AppointmentDate = Now > End With > > slClass.Add(1, clsAi) > > DirectCast(slClass.Item(1), Info).name = "New Name" > > Trace.WriteLine(DirectCast(slClass.Item(1), Info).name) > > >Ken >----------------- >"J L" <j***@marymonte.com> wrote in message >news:0un0c15tim3ifm6ciutd9dbi33b7pil9pi@4ax.com... >I have a sortedlist (ConflictList) that contains a string identifier >(ShipmentNumber) for the key and a structure (AppointmentInfo) for the >value. The structure memebers are strings, dates and intgers (i.e. no >objects). > >I pass this sorted list by reference to a function. And do the >following type of loop > >dim i as integer >for i = 0 to ConflictList.count - 1 > dim apt as AppointmentInfo = _ > Ctype(ConflictList.GetByIndex(i), AppointmentInfo) > >< Here is my questions: >After some processing I want to change the value of one of the >memebers of the original sorted list...can I do it by simply assigning >the new value to the variable I declared above?> > >apt.Door = theNewDoor > ><at this point is the original sorted list changed?> > >next > >I hope my question makes sense. I get totally confused with the >reference/value/scope issues. Like a mind twister for me :>) > >TIA >John > Hi,
I would use a with statement. With DirectCast(slClass.Item(1), Info) .name = "Ken" .Priority = 1 .AppointmentDate = Now End With Ken ----------------------- "J L" <j***@marymonte.com> wrote in message I am trying that now. Can I create a variable that references thenews:2dv0c1d0d7ocdnrsa9id6akh6v8s6op0vh@4ax.com... Thanks Ken, original class to keep from having so many DirectCast statements in my code? i.e. dim apt as Info = DirectCast(slClass.Item(1), Info) and now use apt.name = "New Name" etc. and have this updating the original class? Thanks again, John On Mon, 27 Jun 2005 17:23:24 -0400, "Ken Tucker [MVP]" <vb***@bellsouth.net> wrote: Show quoteHide quote >Hi, > > Instead of using a structure use a class. You will be able to >change values in the sorted list if they contain a class. You will not be >able to change the value in a structure. > > Public Class Info > Public name As String > Public AppointmentDate As DateTime > Public Priority As Integer > End Class > > > > > Dim slClass As SortedList > > > slClass = New SortedList > Dim clsAi As New Info > With clsAi > .name = "Ken" > .Priority = 1 > .AppointmentDate = Now > End With > > slClass.Add(1, clsAi) > > DirectCast(slClass.Item(1), Info).name = "New Name" > > Trace.WriteLine(DirectCast(slClass.Item(1), Info).name) > > >Ken >----------------- >"J L" <j***@marymonte.com> wrote in message >news:0un0c15tim3ifm6ciutd9dbi33b7pil9pi@4ax.com... >I have a sortedlist (ConflictList) that contains a string identifier >(ShipmentNumber) for the key and a structure (AppointmentInfo) for the >value. The structure memebers are strings, dates and intgers (i.e. no >objects). > >I pass this sorted list by reference to a function. And do the >following type of loop > >dim i as integer >for i = 0 to ConflictList.count - 1 > dim apt as AppointmentInfo = _ > Ctype(ConflictList.GetByIndex(i), AppointmentInfo) > >< Here is my questions: >After some processing I want to change the value of one of the >memebers of the original sorted list...can I do it by simply assigning >the new value to the variable I declared above?> > >apt.Door = theNewDoor > ><at this point is the original sorted list changed?> > >next > >I hope my question makes sense. I get totally confused with the >reference/value/scope issues. Like a mind twister for me :>) > >TIA >John > Great Ken. Thank you for all your help!!
John On Mon, 27 Jun 2005 19:35:31 -0400, "Ken Tucker [MVP]" <vb***@bellsouth.net> wrote: Show quoteHide quote >Hi, > > I would use a with statement. > >With DirectCast(slClass.Item(1), Info) > .name = "Ken" > .Priority = 1 > .AppointmentDate = Now >End With > >Ken >----------------------- > >"J L" <j***@marymonte.com> wrote in message >news:2dv0c1d0d7ocdnrsa9id6akh6v8s6op0vh@4ax.com... >Thanks Ken, >I am trying that now. Can I create a variable that references the >original class to keep from having so many DirectCast statements in my >code? > >i.e. > >dim apt as Info = DirectCast(slClass.Item(1), Info) > >and now use apt.name = "New Name" >etc. and have this updating the original class? > >Thanks again, >John > >On Mon, 27 Jun 2005 17:23:24 -0400, "Ken Tucker [MVP]" ><vb***@bellsouth.net> wrote: > >>Hi, >> >> Instead of using a structure use a class. You will be able to >>change values in the sorted list if they contain a class. You will not be >>able to change the value in a structure. >> >> Public Class Info >> Public name As String >> Public AppointmentDate As DateTime >> Public Priority As Integer >> End Class >> >> >> >> >> Dim slClass As SortedList >> >> >> slClass = New SortedList >> Dim clsAi As New Info >> With clsAi >> .name = "Ken" >> .Priority = 1 >> .AppointmentDate = Now >> End With >> >> slClass.Add(1, clsAi) >> >> DirectCast(slClass.Item(1), Info).name = "New Name" >> >> Trace.WriteLine(DirectCast(slClass.Item(1), Info).name) >> >> >>Ken >>----------------- >>"J L" <j***@marymonte.com> wrote in message >>news:0un0c15tim3ifm6ciutd9dbi33b7pil9pi@4ax.com... >>I have a sortedlist (ConflictList) that contains a string identifier >>(ShipmentNumber) for the key and a structure (AppointmentInfo) for the >>value. The structure memebers are strings, dates and intgers (i.e. no >>objects). >> >>I pass this sorted list by reference to a function. And do the >>following type of loop >> >>dim i as integer >>for i = 0 to ConflictList.count - 1 >> dim apt as AppointmentInfo = _ >> Ctype(ConflictList.GetByIndex(i), AppointmentInfo) >> >>< Here is my questions: >>After some processing I want to change the value of one of the >>memebers of the original sorted list...can I do it by simply assigning >>the new value to the variable I declared above?> >> >>apt.Door = theNewDoor >> >><at this point is the original sorted list changed?> >> >>next >> >>I hope my question makes sense. I get totally confused with the >>reference/value/scope issues. Like a mind twister for me :>) >> >>TIA >>John >> > 
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