Programming Sql Table Relationships In Code
Jun 10, 2011i have code to produce a database and tables but now i am looking 4 code 2 add relationships to the tables i would have made
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Creating The Table Relationships?
Apr 23, 2011I am working on a VB.net (VS-2010, Win XP Pro 2 SP3), Employee Management Project. I need to keep track of Employee Leave Attendance and also each Equipment assigned to an Employee. How can I achieve this using SQLlite.
It will be very useful if you could provide me with examples as I am completely new to the field of SQL and VB.net I think this can be done with two tables where one has the primary key while the other has a foreign key, but I am not sure. Also how many tables will I need for storing data in Leave and Equipment Form.
How To Implement M:N Relationships Between Classes In Code
Jul 12, 2009Current i'm developing an application track storage of an item.in it abusiness rule says an item can be moved to more than one warehouses. Also i need to keep the history of the Item's history, Thereefore i need to create two entities,"Warehouse" and "ItemsHistoryOfLocations". I have developped an static class diagram to show the relationshop.These are the relationship rules between the classes:
1. A warehouse could be in an Item's History of locations.
2. A warehouse could be in many Items' History of locations.therefore in the forward relationshop -- 1..*
3. In an Item's History of locations, there must be at least one warehouse4. In an Item's history of locations, there can be more than one warehouse
Therefore in teh backward relationship -- 1..* Therefore the relationship betwween teh classes is a M:N. In another Object oriented scripting languaage when ever, and M:N relationship is found between classes, their relationship is slit and put a collection class called "MemberKeyDictionaries" as the bridging entity.But in C# / VB, should we create these collection classe. IF NOT, then how should i modify my class diagram to implement this M:N relationship? and h0w do i implement this M;N relationship in code?
Game Programming :: Access DB As A Score Table?
Mar 29, 2010I have to use an access DB as a score table and having a few problems.I have the table showing in a data grid fine what i now need to do is find a way of updating it depending on the score someone gets.anyway here is what I have so far and what I want to do is if player scores say 1000 that his/her score then will be put in that place then the others move down....
Code:
Imports System.Data.OleDb
Public Class highScores
' Full path to database must be given if not in Debug/BIN folder
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the score table opens on a new form and the score is held in a var on form 1 called lol score just a quick edit I have put 2 buttons on the form to load the data in the grid to start with but this will load automaticly and the name will be entered into either a txtbob or an inputbox?
VS 2010 Using DataNavigator And One-to-many Relationships
Apr 14, 2011I'm using a Data navigator to navigate (duh) through some records that my BLL fetches from the DAL. I use DataTables to fetch the recrods. Some of such records have one to many relationships. Lets say for example a person has may telephone numbers and my navigator goes through all the persons whose name are Joe. So I manage to show all the Joes through my navigator in the controls but I want to be able to show all their telephone numbers also. Persons is one Table, TelephoneNumbers is another. Each Telephone number has the person it belongs to. I access them through a DataSet and my BLL controllers return DataTables in their search methods, as said.
View 8 RepliesCommunications :: G-code Programming In Vb?
May 26, 2009I am trying to make a cnc program i have learnt a little about g-code i want to know how i can generate g-code from an image? Also how i can use this g-code in my program in vb to move motors?
View 1 RepliesEntity Framework 4.1 - Relationships Between Non Key Columns
Aug 24, 2011I have 2 entities that are related, but the legacy sql schema essentially has 2 key columns for the same table (not a 2-column key: see below). I need to create a relationship back to the 'faux key' column. Is there a way to do this declaratively in Entity Framework 4.1?
Public Class Client
Inherits ModelBase
<Key(), Required()>
Public Property ClientID As Decimal
<Required(), StringLength(50)>
Public Property ClientCode As String .....
And the error I am getting is:
One or more validation errors were detected during model generation: System.Data.Edm.EdmAssociationConstraint: : The types of all properties in the Dependent Role of a referential constraint must be the same as the corresponding property types in the Principal Role. The type of property 'ClientCode' on entity 'ClientLocation' does not match the type of property 'ClientID' on entity 'Client' in the referential constraint 'ClientLocation_Client'.
Because it thinks I'm trying to map ClientLocation.ClientCode > Client.ClientID, when I am really trying to map ClientLocation.ClientCode > Client.ClientCode...
LINQ To SQL: Fake Repository With Many-to-Many Relationships?
Aug 6, 2009I have two tables, Clients and Administrators, which are linked in a many-to-many relationship by the table ClientAdministrators. In the real application this works fine and I can get a list of Administrators for my Client. My problem comes in trying to unit test the service class that is retrieving this from the repository. I have a FakeRepository class which implements my repository interface and I have several internal lists of objects for the service class to query against.
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Way To Determine If A Programming Code Has Been Converted To C#
Jul 21, 2009General question: Is there any way to determine if a programming code has been converted from VB.Net to C#.
View 1 RepliesDelete The Programming Code For The Deleted Control?
Sep 30, 2010Delete the programming code for the deleted control.
View 3 RepliesBusiness Model Class Object Relationships And Communication?
May 7, 2012I'm developing a business model for an application where I am representing physical entities. The hierarchy created from this is neat, but as I'm doing this, I'm beginning to think about things like, what properties should be included in one that may already be apart of another? Or what if some properties are expected to be in one object, but another object needs to return that value, how does it communicate that request through the hierarchical chain? And what is the best practice for this design?
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But then I got to thinking, what if I have a ConnectionPoint entity and I want it to return which Panel it has? Should it have it's own Panel association as well? Or should there be a method/pattern for communicating the request up the chain? And again... what's typical best practice?
Parent-child Relationships Of Controls In 2005 Express
Jan 10, 2009In VB6, if you put a picturebox on a form and then put a control inside the picturebox, then the control would be a child of the picturebox. Its location would be relative to the picturebox and not the form.If you do the same thing in VB 2005 Express , the control seems to still be a child of the form and not the picturebox (i.e. its location property is relative to the form).Is there any way to make a control or graphic inside a picturebox a child of the picturebox and not the form?
View 2 RepliesVS 2008 Relationships In VS When Relating From Long To Auto-number
Jun 15, 2009i'm having trouble with the relationships in VS when relating from long to Autonumber.I got an answer that fields should be declared integer, but ACCESS explicity states that fields realting to autonumber must be delared long.
View 3 RepliesAsk Code In Visual Basic 2008 For Calculator Programming?
Oct 18, 2011Build calculator using visual basic 2008
View 1 RepliesCreate Programming Flowchart/documentation From .NET Source Code?
Mar 5, 2010what tools do you use to create programming flowchart/documentation from VB.NET source code? There are absolutely no comments/documentation at present. I am a beginner, i.e. I tried Sandcastle but it is way over my head and could not get it going, not even with GUI.Fatesoft's CodeVisual To Flowchart is OK but it is almost the same as the code and I still don't understand the code.
View 3 RepliesWrite Code On Network Programming That Is Window Based?
Aug 24, 2010how to write code on network programming that is window based. most of the code i read are console application.
View 4 RepliesCode To Edit Data-row Of Table Adapter But Doesnt Update Table
Apr 23, 2009I have this code to edit the datarow of my table adapter but t doesnt update the table. I think i have a missing code that's why but i cant figured it out. by the way im using vb2008 and SQL as my database. [code]
View 3 RepliesAdded Table To Database But Can't Reference Table Adapter In Code?
Feb 26, 2011I added a table to my Access database. I added that table to my dataset. Using Database Designer VB Studio, my table and tableadapter show up in the design view. The class definition is in the datasetdesigner.vb, and it shows in the object browser. But, I can't reference it in code. I am a newby and obviously missing somethning.
View 1 RepliesRs232 Serial Programming - Port To C# - .net Code Works Correctly - C# NOT?
Nov 5, 2009The vb.net code is functioning correctly as it talks to a device through COM1 serial port.What I was hoping was the equivalent c# code is not creating the same string and as a result, the serial 'packet' is not correct. Check this illustration of my problem [URL]...
My goal is to eliminate the addition of the extra characters '/0' and '/b' that what I hoped was the c# equivalent to the correctly functioning vb.net code. It just occurred to me I should change the code to employ Stringbuilder. The 'packetbuilder' method/function builds a string and keeps concatenating things to itself.
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Best Programming Language For Programming Windows Applications?
Jan 28, 2012I have recently taken a liking to programming, and have programmed a few games in C#,my friend has asked me to program an application for him to use in his shop. But I have no idea of what language is best suitable?
View 8 Replies.net - Parent/Child Relationships Failing When Getting Data From Parent Class With Multiple Forms Open?
Jun 24, 2009I have a main form, and some sub forms, and each sub form can have some sub forms. When I have multiple sub forms open, and I try to get data from the parent form, it returns the data from the wrong parent form.For example I have two instances of Mainform.subform running. If I do something like this in a child form of one instance of the subform. It returns data from the other subform.
dim l = Mainform.subform.listofdata
Edit:I am using visual Studio 2008. Winforms, form designed using designer. In my mainform I am doing this
Protected Friend frmMain as Mainform
frmmain = new mainform
In frmMain I am doing this
Protected Friend frmsub as new Subform'
frmsub = new subform
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Game Programming :: Code For 3 Of A Kind In Yahtzee Game
Apr 18, 2010im struggling to work out the code for 3 of a kind in my yahtzee game, i think that if i can work this out i can sort my everest of the full house code!
can someone tell me where ive gone astray?
code:
Game Programming :: Snake Game - Get The Code To Get Longer
Jun 6, 2011I just finished my own snake game, and I need some recommendations on how to make this game better.If you see a problem, please tell me.The only problem with this game is that I can't get the code to get longer, other then that its good.EDIT: Sorry I meant : The only problem with this game is that I can't get the SNAKE to get longer, other then that its good.
View 4 RepliesMobile Programming - Mobile Development | Dream.In.Code
Aug 25, 2010I m trying to connect sql server to mobile device but dont know were to start
View 2 RepliesAsp.net - Get Table Id In Code In .Net?
May 13, 2009I have two tables on a webform. On a button click I want to hide one and show the other. I gave them both an Id and I want to set the tables' style="display:"
I tried this in javaScript using a function and document.getelementbyid(id).style.display='none' but it did not work.
Solution:
OnClientClick="javascript: tbl2.style.display='';tbl1.style.display='none';return false;"
Add A Table From Code To SQL In VB 2008
Nov 2, 2009I have an exising SQL dataset in my VB 2008 program. I want to add the table below to this dataset. I did it before but I can not remember how. The name of the existing dataset is ERICOseismicDataSet. I am using this table to pass user generated data to a Crystal Report. how to add this table to the dataset?
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Lock A Table Via Code
Mar 9, 20091. I have to select the next invoice number from one table.
2. Then i have to insert this invoice number as it is in three other tables.
3. Then once i have done so i have to go and update the invoice number by +1 (increment by
1). And i have to do this for each row in the datatable.
During this whole period i do not want anyone to access (read or change) that invoice number. We can lock the table or row. Does not matter. How can i do it? I am not suppose to use store procedure. Lock table ... does not work. It is not an T-SQL stmet select invoice number with (readlock) ....... only works while this stement is runned. I want to have the table or row locked until i have done 1,2 and 3rd steps. I have seaching for a stamt in sql which will do this for me! But didnt find anything. All results point me to SP which i cannot use.
ASP.NET VB Code Behind HTML Table Forecolor?
Feb 3, 2011I have a page with a html table on and am accessing it from code behind and changing what is displayed depending on values from a database, I have managed to change what text is displayed and the background color but i'm struggling to change either a rows or a cells font/fore color.
'Iterate through the rows of the table.
For i = 0 To Table1.Rows.Count - 1
'Iterate through the cells of a row.
For j = 0 To Table1.Rows(i).Cells.Count - 1
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Code To Populate An Xml Table - What Type To Use
Jul 8, 2009I have code to populate an xml table however i do not know what types to use, here is my code, what should i define differently and is there any other way to do it? [Code]
View 1 RepliesInserting A Table Rtf Code Into A Richtexbox?
Apr 30, 2010I am working on a rich text editor. I want to add a table to document. My table has 2 columns and 3 rows. Rtf code of my table is as follows:
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How can I insert this code to a rtf document which is not empty. I want to add this table between two paragraphs for instance. How can I do this?