I need to fill a datatable(in data set) row by row by providing the the data by variables in VB.Net. The variables assigns its value by loop.. so the datatable row should be filled row by row until the loop ends. There are three columns in the table. so the table should fill with different kind of datatype variables.
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I have a SQL Server database for which I have created a strongly-typed DataSet (using the DataSet Designer in Visual Studio 2008), so all the adapters and select commands and whatnot were created for me by the wizard.
It's a small database with largely static data, so I would like to pull the contents of this DB in its entirety into my application at startup, and then grab individual pieces of data as needed using LINQ. Rather than hard-code each adapter Fill call, I would like to see if there is a way to automate this (possibly via Reflection). [code]...
I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System
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is it possible to fill a list box from two SQL tables firstname lastname.
View 7 RepliesI am trying to make a database, fill it with tables and then fill the tables. I am having problems connecting to the server and am really not sure why. I have posted this thread in two areas of this site because I was not sure what was the best area to put it in. [code]
View 3 RepliesI wrote an application that connect to a SQL Server Db and fill some tables in dataset and calculate some functions based on record's items. But I can't run this application on other pc correctly. some tables fills in dataset and I can retrieve the data, but some tables not fill.
View 3 RepliesI have a combobox in my form which I want to fill with data from one column in an SQL database. Any idea on how I do this?
View 1 RepliesI try to fill up a data grid view with records of two related tables. Beneath you can find the code I use to handle this.
The first table �GemeentenT� has the following columns.
GemeenteId Primary key
GemeentePostnummer
GemeenteNaam
[Code].....
I have a VB.Net dataset that contains data from multiple tables. how to query data out of the dataset. I want to run SQL-like queries on a dataset to extract data that fits a certain "where" statement.
View 3 RepliesThe situation: I have a small application where i store customers and orders.. In my database i have a tabel called Customers and a tabel called Orders. These 2 dabases are joined on Customer ID - every Order record contain a row with the customer Id.
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I have an office project which shoudl basically do the following:
1) take different TEXT files of fixed-length fields and put them in separate tables.
2) use the data from the different tables and compile them to a master table in a mdb.
3) display data in compiled mdb in datagrid 4) allow editing in datagrid 5) save the data in datagrid into the mdb 6) save the data in datagrid in a csv file i did some googling and came up with the following code:
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fill a NEW DataSet's DataTable with data from a DataGridView? I am generating a data report that uses that "new DataSet." I need to go from a DataGridView to a DataSet because i need the person to be able to perhaps edit the information before its inserted into the report. my process to generate the report is...
- fill datagridview with advanced join sql
- allow user to edit datagrid if necessary
- put datagrids modified information in new dataset
- set report's databinding source to new dataset
- generate report...
I think my subject sums up what I am interested in knowing. I am looking to create a chart where Series1 is from Table1, Series2 is from Table2 in the given Dataset. My code below doesn't throw any errors, but it appears to be grabbing the data for each series from the first table.
Imports System.Windows.Forms.DataVisualization.Charting
Public Class Form1
Public Sub New(ByVal ChartData As DataSet)
' This call is required by the designer.
InitializeComponent()
[Code] .....
There is a "how do I video" on how to properly control updates, inserts and deletes in multi-user applications on forms that edit master-detail related data. [URL] Massi worked through the process using Order (OrderID is PK) as the master table and Order Detail (OrderDetaiID is PK) as a related table in dataGridView. The dataGridView automatically generate orderDetailID whenever the mouse enters in a new row. I am doing a similar form, but placing order form and orderDetail form in two separate tabs in a tabcontrol, and also using Details view for both tables. When I click "new" button in BindingNavigator, the orderID is automatically generated. If I use dataGridView for my orderDetail tab, then the orderDetailID is automatically generated when the mouse enters. This allow me to insert/update tables correctly. However I need the Details View for my orderDetail form too. How do I get a orderDetailID automatically generated when user insert a new order and have the mouse click on OrderDtail tab?
View 1 RepliesGreetings, I have installed Oracle 10g Express Edition database on a server and install the client on my PC. Now, I`m developing a vb.net application using visual studio 2005 and I need to use the oracle 10g express edition database. SO I initialize the connection using the following connection string:
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I need to pick all data in my application from my database and use it in my form
my question : how to pick all data in my application then i use it
I want to add a "object" as a data source... then fill a "dataset" using the datasource?
View 1 RepliesSQL statements:
SQL = "SHOW TABLES;"
Try
conn.Open()
The remarked area works fine when I'm accessing a specific table. I've successfully inserted the products_model field into the combobox too. The datagridview does show the table names in the db using the SHOW TABLES sql statment, but I'm not understanding how to get this info into the combobox instead.
I got a problem dealing with variables: I would like in an if-then-else following
If FZ1_KaskoTextBox.Text = 1 And Grundwert_Kasko <= 10000 And FZ1_BMComboBox.Text = 9 Then PraemieKasko_KFZ1_Var1 = 169.33 And PraemieKasko_KFZ1_Var2 = 169.33 Else
But the variables don't get filled?! is there any possibility to fill two variables within one "then" ...
How to fill a TreeView from two related tables (Customers 1 -> Products n)? I have seen the example of microsoft using Northwin Database and I do not understand this, I need something simpler.
View 2 RepliesWhat is the impact of creating variables using:
Dim ds as New DataSet
ds = GetActualData()
where GetActualData() also creates a New DataSet and returns it? Does the original empty DataSet that was 'New'ed just get left in the Heap?
What if this kind of code was in many places? Would that affect the ASP.NET process and cause it to recycle sooner?
I have an Access 2003 DB and an SQL Server 2005 DB.
I have one datagridview where I want to present data from both databases.
My query would look like this:
SELECT
ACCESS2003.Resource_ID,
ACCESS2003.NAME,
SQL2005.Resource_ID
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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:.....................
That question sounds maybe a little confusing so I'll try to explain it with an example.[code]...
View 1 RepliesAim to Achieve : I want to have 3 different dataTables from 3 different SQL queries from 3 different places into 1 single DataSet which I will have to return form my function.I have :
Private Function getDataSet()
Dim ad1,ad2,ad3 As Object
ad1 = New Data.OleDb.OleDbDataAdapter(query1, conStr1)[code].....
I want to use the best possible implementation of above task.
I have a need to assign values from my dataset to a variable but when i use string (which its normally text) and the item in that row of the dataset is empty it tells me that conversion from DBnull to string is not valid
View 2 RepliesI've added a Data Source to my project and a table from that Database (SQL 2005)
It is a rather large table and takes a LONG time to load the form. I was thinking of loading the auto-generated "Fill" statement in a Backgroundworker, but it doesn't seem to be doing anything. I have the Fill statement in the DoWork event, but it never "finishes" it seems. My BindingNavigator stays at 0.
I looked at jmc's sig link and everywhere I look, it seems like I'm going to have to iterate one at a time, but how can I do this for a bound datasource?
i have the following code to fill two comboboxes using one dataset:
Private Sub sub_cbo_type_load()
Dim ds As New DataSet
ds = cls.cbo_type()
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the problems is: whenever the index is changed in one combobox, it's automatically changed in the other one too.
I have one dataset with two tables and when some values from tables are changing I need somehow to change the values from table 2. Table one is conected to an SQL server. One table 1 receives a message from sql service broker it automatically reload all the information. I need in that moment to compare what I have new in table 1 and put it in table 2. I have made with <br />For i=1 to ..<br /> </p>
View 6 RepliesI would like to copy tables at A specific position from a dataset and insert them into another dataset at a specific position.
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