Have a good day lets assume that i have 2 tables First one is customer table and has primery key called cusid ( auto increment)second one is order table and has foregion key custid how i can connect them , what i mean exactly when insert the record in the customer table i need the foregion key get the same value as primery key in customer table
Note : I'm using sql server 2008 and vb.net 2008
I have created this table using sql but I need to create a relation with another table and I don't know how.
View 15 RepliesLets assume that I have 2 tables:
First one is customer table and has primary key called cusid ( auto increment)
Second one is order table and has foreign key custid
How I can connect them, what I mean exactly when insert the record in the customer table I need the foreign key get the same value as primary key in customer table. I'm using sql server 2008 and vb.net 2008.
How to bound this dataset to datagridview?
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i have 2 forms lets say form1 and form2, i already connected the ms access to my vb 2008 and im sure that i connect it right. The problems are for example i have this in my ms access table
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I am using this code to bring data in combobox but u_id is the premiry key n not full name then on selection how can i bring the perfect result?[code]...
View 3 Replieshave a datagridview containing 2 tables left joined, so that:table1 LEFT JOIN table 2 ON table1.id=table2.idI get an error whenever I try to edit my datagridview."invalidOperationException was unhandled by the user codeDynamic SQL generation is not supported against multiple base tables."The error points to this line:
da.FillSchema(dt, SchemaType.Mapped)
da.Update(dt) << This line
'da = dataadapter
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I have two list boxes named lb1 and lb2. Those list boxes have following items.
Lb1 Lb2
---- ----
2 4
3 5
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I haven't lost my mind? I have done relationships in the past but now they don't seem to work. Have I gone dumb? Creating a winform, using VS2008, sqlexpress & vb.net. My dataset looks like this:
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When i have a relation between two entities in my model: [GroupMember] (*) ----- (1) [User] and tries to select items from this relation with LINQ: From entity in _user.GroupMember select entity I always get an empty result unless I load the relation first with following statement: _user.GroupMember.Load() Is there a way to avoid loading the relations like this?
View 2 RepliesI'm trying to generate my own dataset and create parent/child relation on the fly so that the subsequent datagridviews (dgv) that will be displaying the information will filter each child dgv by the record chosen in the parent dgv (I hope this makes sense).
So far I am able to display info in each dgv, but every record from each corresponding table is displayed in each dgv- no filtering is occuring. I think the problem might be in how I'm creating the relation and/or how I'm linking it to the dgv. Here's the code I have on the UI:
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OK, folks, help me figure out what I'm doing wrong. I have the following
Dim table1 As New DataTable("Table1")
table1.Columns.Add("column1", GetType(Integer))
table1.Columns.Add("column2", GetType(String))
table1.Columns.Add("column3", GetType(String))
table1.Columns.Add("column4", GetType(Integer))
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table1.Columns.Add("column7", GetType(String), "parent(Relation1).column6")On the last line where I try to add column7 I get an error saying "unable to find parent relation 'Relation1'". I thought I just added that relation?
I'm working on a program that allows me to edit XML data in a DataGridView. I have most everything working but I don't like my current TreeView Structure. I load the XML data into a DataSet and edit it there, so that is what I'd prefer to base my TreeView on. I've tried a few things such as..
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I have a problem in this Routine(VB2008) :
Dim PubAry(2) As Object
Dim cc(2) As Double
cc(0) = 3.0 : cc(1) = 33.0 : cc(2) = 333.0
PubAry(0) = cc
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The result is:
- pubAry {Length=3} Object()
- (0) {System.Array} Object
- Double() {System.Array} Object
(0) 4.0 Double
(1) 44.0 Double
(2) 444.0 Double
- (1) {System.Array} Object
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Its like Excel Sheet Cells Relations !... Why?
I am using VS2008 and SQLite. I have created a database and several tables and am attempting to populate the tables with data from arrays.
The following code (example) works fine but stops after it inserts 30 to 50 records. I am running the VB code in debug mode and when it stops, I press pause to see where it is. It stops on "SQLcommand.ExecuteNonQuery()" and when I press continue (F5) it will insert another 30 to 50 records.
I do not get an error message. Is this a timeout issue? How do I keep the loop running to the end of the array?
Following is example code.
Dim
SQLconnect As New SQLite.SQLiteConnection()
Dim SQLcommand As SQLiteCommand
CODE:.....................
In my datagridview I was fill in using join tables (table1 = pr_employees, table2 = pr_employee_deduction). My problem now is during save button I want to update records from table2 only.[code]
View 3 RepliesWe are presently developing an application, let's call it APP1, which uses a SQL Database which have about 800 stored procedures, 600 tables, etc. APP1 was originally created in order to replace another application, APP0, from which we do not have source code but only SQL tables, Stored Procedures, views, etc. Previous programers of APP1 used some DB objects from this same database and added some other objects specific to APP1 because it becomes bigger than APP0. And we do not need APP0 anymore as APP1 does all what we want, and more.
So, now, we are thinking about a way to find out which objects are used by APP1 in order to remove objects which are ONLY used by APP0.What is the best approach to discover all objects used by APP1 without having to open every single class and form?
Once we will have a complete list of these objects, it will be easy to use a program we bought which detects all dependencies for all SQL Objects specified directly from SQL and remove objects which do not return from any dependencies. Any ideas of how I could get this list without having to go through all our program that have many, many, many classes and forms?
Note : I know, in a perfect world, all calls to PSs and tables should be in a DAL but in the case of the application we're presently working on ... this is not our case! Yippy! (sarcastic yippy) ;)
Note 2 : This application is not using any ORM. So all queries are directly using SqlCommand. So any call to any DB objects are in string format.
I have a 5 tables in my database and i want to access all my tables togather at a time.e.g.I have a code for one table i.e. rs.Open "select * from Group_info", con, adOpenDynamic, adLockBatchOptimistic. instead of Group_info table i want to access 5 tables also as Login_table,User_info table,group_name table etc. How i do that
View 11 RepliesI'm trying to make it so that it reads the xml, gets all the tables and puts all the tables names into the combobox..
i have tried..
ds1.ReadXml(meDirectory & "saves.xml")
With ComboBox1
.DisplayMember = "name"
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i have two tables ( employees and departments )i want to insert data in employees table via employees form .so how can i put the departments names in a combobox and when the user choose a specific one it will return a department number so i can pass it to the INSERT statement? i mean what is the exact SELECT statement to load the the information to the datatable do i need two SELECT statements or innerjoin or something else?
View 2 RepliesI have to tables into my SQL Server 2008 database
1st table: tblUser (user_id, user_name, user_photo);
2nd table: tblAccess (id, user_id, status_access);
I need to permit access or denied access using this 2 tables....
The problem is: When the user type a 'user_id' in textbox, the application go to table tblAccess and verify if the status_access is true or false.... if is false, the application show a msgbox saing "Access denieded"... when status_access is true the application go to table 'tblUser' and get user_name, user_photo and show the user photo to the picturebox, show the user name to the labeltext and a message box saying : access permited...
How can I do it in VB.net 2008
I want to create a table with an option of increasing rows on clicking a button which will be on the side of tableAfter user puts data into table, that should be updated in oracle database table.
View 1 RepliesThere would be more than 8 table controls in the report(.rdlc) and each would hold records that has specific values on specific fields.The fields in my database table are;
1. Year
2. Semester
3. Subcode
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I have a problem using my database in which I have a table with product names, codes, prices and information. I use the below method to get connected to my database and tables.
Dim dtCOP As New AmetailorDataSet.COPDataTableDim adapterCOP As New AmetailorDataSetTableAdapters.COPTableAdapter
adapterCOP.Fill(dtCOP)
[code]......
In my application, I use Vb.Net 2008 with MsAccess..In SQL SERVER, for creating Pivot Tables, I can use the commands: PIVOT and UNPIVOT in SqlServer, for creating them.But, working with Vb and Access, how can I do it?There is some way to create a Pivot Table, by code?
View 5 RepliesHow can I connect two tables from MS SQL Server 2005 using vb.net 2008?
View 5 RepliesI have a select query like this. But from the below codes, I cannot update t2.unit_price in the same SqlDataAdapter
My Codes :
Dim MyQuery1 as String="Select t1.item_id,t1,group_id,t2.unit_price from Table1 t1 left outer join Table2 t2 on T1.Item_ID=T2.Item_ID"
Dim DAp1 as SqlDataAdapter,Ds1 as New DataSet
Con.Open()
DataAdapter1=New SqlDataAdapter(MyQuery1,Con)
DataAdapter1.Fill(Ds1)
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From the above codes
Dim Sav1 As String = "insert into table1 .........."
I don't know how to mention table2 also there ?
I have a table of data in Excel 2003 of which I have managed to automate through a VB.NET application to create a Pivot Table. (Will be doing hundreds of these and therefore cannot just run a macro each time...will put the code in a for loop for each spreadsheet in a directory) My problem is that I am trying to create a pivot chart based on the pivot table.
Some code below....I need to create a pivot chart based on the pivot table below!
CODE:
I have created a crystal report with two tables, one for company details as a header and one for report details as a filler. I have been trying to get dates to filter the report and have done so successfully but the header part of the report does not show any data at all. I have binded the crystal report using a report viewer. Here is code I use to call crystal report. Lets say second table is called Company details, how do I get this information to show up with rescinded documents information. I have attached a copy fo what my final report will look like.
Private Sub BtnOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnOpen.Click
Dim sqlsearch As String
Dim con As New OleDb.OleDbConnection
Dim hugh As Date = DateTimePicker1.Value.Date
Dim hugh2 As Date = DateTimePicker2.Value.Date.AddDays(1)
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I have a problem using my database in which I have a table with product names, codes, prices and information. I use the below method to get connected to my database and tables.
Dim dtCOP As New AmetailorDataSet.COPDataTable
Dim adapterCOP As New AmetailorDataSetTableAdapters.COPTableAdapter
adapterCOP.Fill(dtCOP)
But in one row, I have product descriptions so there should be sentences. I set the type of this row is Text in the database. When I use single numbers in the table, there is no problem. But if I write sentences (that is a must because it is product description) or even a single word, I get the below error on adapterCOP.Fill(dtCOP):
"Input string was not in a correct format.Couldn't store <(the written text in description)> in Description Column. Expected type is Decimal."
There is a richtextbox in my form that should show the product description when the product code is selected from a listbox available in my form.