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Forum Newbie
      
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Heres a snippet for generating a VB.net class from a table, just replace the target table name
just a few tweaks and you can generate one for C# 
cheers!
declare @field table (fieldname varchar(50), fieldtype varchar(50)) declare @table_name varchar(50) set @table_name = 'TargetTable' -- this is the table name
insert into @field Select sc.name, st.name from sysobjects so, syscolumns sc, systypes st where so.id = sc.id and so.xtype = 'U' and so.name = @table_name and st.xtype = sc.xtype
print 'Public Class ' + @table_name
declare @fieldname varchar(50) declare @fieldtype varchar(50) declare @constructor varchar(500) declare @assign varchar(500)
declare cur cursor for select fieldname, fieldtype from @field
open cur
fetch next from cur into @fieldname, @fieldtype
set @constructor = '' set @assign = ''
while @@fetch_status = 0 begin set @fieldtype = case @fieldtype when 'int' then 'Int32' when 'tinyint' then 'Int32' when 'varchar' then 'String' when 'bit' then 'Boolean' when 'float' then 'Double' when 'datetime' then 'Datetime' else @fieldtype end
set @constructor = @constructor + 'ByVal v' + @fieldname + ' AS ' + @fieldtype + ', ' set @assign = @assign + '_' + @fieldname + ' = v' + @fieldname + ' : '
print '' print 'Private _' + @fieldname + ' AS ' + @fieldtype print 'Public Property ' + @fieldname + '() AS ' + @fieldtype print ' Get' print ' return _' + @fieldname print ' End Get' print ' Set (value AS ' + @fieldtype + ')' print ' _' + @fieldname + ' = value' print ' End Set' print 'End Property' print ''
fetch next from cur into @fieldname, @fieldtype end
print 'Public Sub New(' + substring(@constructor, 0, len(@constructor)) + ')' print ' ' + substring(@assign, 0, len(@assign) -1) print 'End Sub'
print 'End Class'
slow down when you need to hurry, stop when you need to move on, look back when you need to forget, or you might slip and leave sanity
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Forum Newbie
      
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SSCrazy Eights
        
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Make sure you post this to the site script library and note it a bit better. As well you should do one for C# to ensure your work is credited.
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SSCrazy Eights
        
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Here is a vesion without any Cursors:
create proc spVB_Make_Class as --from Lambert Antonio, 26-jun-2008
Set NoCount ON
declare @field table (id int identity primary key clustered, fieldname varchar(50), fieldtype varchar(50)) declare @table_name varchar(50) set @table_name = 'TargetTable' -- this is the table name
insert into @field Select sc.name , case st.name when 'int' then 'Int32' when 'tinyint' then 'Int32' when 'varchar' then 'String' when 'bit' then 'Boolean' when 'float' then 'Double' when 'datetime' then 'Datetime' else st.name end As [name] from sysobjects so, syscolumns sc, systypes st where so.id = sc.id and so.xtype = 'U' and so.name = @table_name and st.xtype = sc.xtype
declare @VB table (id int identity primary key clustered, Line varchar(8000)) declare @constructor table (id int identity(1000000,1) primary key clustered, Line varchar(8000)) declare @assign table (id int identity(1000000,1) primary key clustered, Line varchar(8000))
Insert into @VB(Line) Select 'Public Class ' + @table_name
Insert into @VB(Line) Select ' Private _' + fieldname + ' AS ' + fieldtype + ' Public Property ' + fieldname + '() AS ' + fieldtype + ' Get return _' + fieldname + ' End Get Set (value AS ' + fieldtype + ') _' + fieldname + ' = value End Set End Property ' From @field Order By ID
Insert into @constructor(Line) Select 'ByVal v' + fieldname + ' AS ' + fieldtype + ', ' From @field Order By ID
Insert into @assign(Line) Select '_' + fieldname + ' = v' + fieldname From @field Order By ID
Insert into @VB(Line) Select ' Public Sub New(' Insert into @VB(Line) Select ' ' + Line From @constructor Order By ID Insert into @VB(Line) Select ' )' Insert into @VB(Line) Select ' ' + Line From @assign Order By ID Insert into @VB(Line) Select ' End Sub
End Class'
Select Line From @VB Order By ID
-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung Proactive Performance Solutions, Inc. "Performance is our middle name."
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Forum Newbie
      
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This script is great:D:D I'm beside myself with joy Below is my first attempt at posting here or anywhere on the net so be kind.
I've converted the vb code to csharpe and it works for me. Thanks to all for their involvment in doing these things that help others.
David Kelly SQL novice C# programmer novice General old guy
create proc spCSharpe_Make_Class as --from Lambert Antonio, 26-jun-2008 --converted to C# David Kelly, 06/27/2008
Set NoCount ON
declare @field table (id int identity primary key clustered, fieldname varchar(50), fieldtype varchar(50)) declare @table_name varchar(50) set @table_name = 'JBMTest' -- this is the table name
insert into @field Select sc.name , case st.name --when 'int' then 'Int32' when 'money' then 'double' when 'tinyint' then 'int' when 'varchar' then 'string' when 'bit' then 'bool' when 'float' then 'double' when 'datetime' then 'DateTime' else st.name end As [name] from sysobjects so, syscolumns sc, systypes st where so.id = sc.id and so.xtype = 'U' and so.name = @table_name and st.xtype = sc.xtype
declare @CSharpe table (id int identity primary key clustered, Line varchar(8000)) declare @constructor table (id int identity(1000000,1) primary key clustered, Line varchar(8000)) declare @assign table (id int identity(1000000,1) primary key clustered, Line varchar(8000))
Insert into @CSharpe(Line) Select 'using System' Insert into @CSharpe(Line) Select 'using System.Collections.Generic' Insert into @CSharpe(Line) Select 'using System.Text'; Insert into @CSharpe(Line) Select ''; -- blank line
Insert into @CSharpe(Line) Select 'namespace MCL' -- Namespace
Insert into @CSharpe(Line) Select '{' -- Namespace Insert into @CSharpe(Line) Select ' class ' + @table_name -- Class definition Insert into @CSharpe(Line) Select ' {' -- Class Insert into @CSharpe(Line) Select ' private ' + fieldtype + ' m_' +fieldtype + fieldname + '; public ' + fieldtype + ' prop'+ fieldname + ' { get { return m_' + fieldname + '; } set { m_' +fieldtype+ fieldname + ' = value; } } ' From @field Order By ID
Insert into @constructor(Line) Select 'ByVal v' + fieldname + ' AS ' + fieldtype + ', ' From @field Order By ID
Insert into @assign(Line) Select '_' + fieldname + ' = v' + fieldname From @field Order By ID
Insert into @CSharpe(Line) Select ' public '+ @table_name+'()' Insert into @CSharpe(Line) Select ' {' Insert into @CSharpe(Line) Select ' }'
Insert into @CSharpe(Line) Select ' } // do not go below this line' -- End Class'
Insert into @CSharpe(Line) Select '}' -- End namespace Select Line From @CSharpe Order By ID
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| Awesome!! Thank-you so much. Staring at Linq all day was giving me a headache.
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