Click here to Skip to main content
15,920,602 members
Home / Discussions / C#
   

C#

 
AnswerRe: Voting System in C# Pin
OriginalGriff10-Dec-17 23:32
mveOriginalGriff10-Dec-17 23:32 
GeneralRe: Voting System in C# Pin
Mycroft Holmes10-Dec-17 23:39
professionalMycroft Holmes10-Dec-17 23:39 
GeneralRe: Voting System in C# Pin
OriginalGriff10-Dec-17 23:43
mveOriginalGriff10-Dec-17 23:43 
GeneralRe: Voting System in C# Pin
phil.o11-Dec-17 18:02
professionalphil.o11-Dec-17 18:02 
QuestionGeneric type passed into method question Pin
User987439-Dec-17 20:44
professionalUser987439-Dec-17 20:44 
AnswerRe: Generic type passed into method question Pin
OriginalGriff9-Dec-17 22:32
mveOriginalGriff9-Dec-17 22:32 
QuestionRe: Generic type passed into method question Pin
User9874310-Dec-17 0:49
professionalUser9874310-Dec-17 0:49 
AnswerRe: Generic type passed into method question Pin
OriginalGriff10-Dec-17 0:57
mveOriginalGriff10-Dec-17 0:57 
Ah! To create a new instance, you need to tell it that the only classes that can be "generic-ed" are concrete classes (like OldedbConnection, and SqlConnection), not abstract classes like DbConnection.
That's easy: add the new constraint (and remove the class instance from the parameters list):
C#
private T DataConnection<T>(int index_of_mydatafile) where T : System.Data.Common.DbConnection, new()
    {
    T db_conn_obj = new T();
    db_conn_obj.ConnectionString = "...";
    db_conn_obj.Open();
    return db_conn_obj;
    }

Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!

GeneralRe: Generic type passed into method question Pin
User9874310-Dec-17 1:05
professionalUser9874310-Dec-17 1:05 
GeneralRe: Generic type passed into method question Pin
OriginalGriff10-Dec-17 1:49
mveOriginalGriff10-Dec-17 1:49 
AnswerRe: Generic type passed into method question Pin
Eddy Vluggen10-Dec-17 3:03
professionalEddy Vluggen10-Dec-17 3:03 
GeneralRe: Generic type passed into method question Pin
User9874310-Dec-17 18:41
professionalUser9874310-Dec-17 18:41 
GeneralRe: Generic type passed into method question Pin
Eddy Vluggen11-Dec-17 2:34
professionalEddy Vluggen11-Dec-17 2:34 
AnswerRe: Generic type passed into method question Pin
Gerry Schmitz10-Dec-17 1:04
mveGerry Schmitz10-Dec-17 1:04 
Question2 Active Directory Questions Pin
Kevin Marois7-Dec-17 9:42
professionalKevin Marois7-Dec-17 9:42 
AnswerRe: 2 Active Directory Questions Pin
Dave Kreskowiak7-Dec-17 13:11
mveDave Kreskowiak7-Dec-17 13:11 
GeneralRe: 2 Active Directory Questions Pin
Kevin Marois8-Dec-17 5:13
professionalKevin Marois8-Dec-17 5:13 
GeneralRe: 2 Active Directory Questions Pin
Dave Kreskowiak8-Dec-17 7:29
mveDave Kreskowiak8-Dec-17 7:29 
AnswerRe: 2 Active Directory Questions Pin
Eddy Vluggen7-Dec-17 14:20
professionalEddy Vluggen7-Dec-17 14:20 
QuestionHow can I add multiple headers in a ListView Control winforms c#? Pin
Dionisio Huerta Rosario7-Dec-17 6:25
Dionisio Huerta Rosario7-Dec-17 6:25 
AnswerRe: How can I add multiple headers in a ListView Control winforms c#? Pin
Gerry Schmitz7-Dec-17 20:41
mveGerry Schmitz7-Dec-17 20:41 
AnswerRe: How can I add multiple headers in a ListView Control winforms c#? Pin
Ralf Meier8-Dec-17 1:06
mveRalf Meier8-Dec-17 1:06 
QuestionDynamic HTML from Code Behind Pin
warren8r7-Dec-17 5:16
warren8r7-Dec-17 5:16 
AnswerRe: Dynamic HTML from Code Behind Pin
Gerry Schmitz7-Dec-17 6:16
mveGerry Schmitz7-Dec-17 6:16 
QuestionCreating a loop for multiple files coying to SQL Server which are coming from SFTP Loaction. Pin
Naveen Reddy Ankampalli6-Dec-17 14:49
Naveen Reddy Ankampalli6-Dec-17 14:49 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.