so this actually opens and close connection for every method. but i need to open and close the connection only one time. so how to customize this code to achieve my need. now i am hitting database for 14 times in a button click as of now. instead i need to hit only once but all the rows has to be inserted in my database.i am using MSAccess as Database.
I am new(ish) to Visual Basic and i have learned from looking at old VB6 code for programs that have been made for us in the past, this includes using the old ADODB connections and FlexGrids which both have been changed in VB.Net to OLEDB and DataGridView.I have started to understand the way the connections and datasets etc are created but i am struggling to get to where i was with the old code (I am trying to completely upgrade the code from FlexGrid).This is the VB6 Code i am trying to upgrade from:
i am creating a program in vb.net and was wondering if there is a way to perform multiple queries with one button without adding a second button. like i have two text boxes, one is for date and the other is for name. what i want to do is if i hit search and both the date and name boxes are filled, i want it to search for the name based on that date. but if only the name is filled i want to search for everything under that name.This is what i have. right now it only does one search:
I'm building an application that will be using several (7) SQL queries, I'm wondering whats the best way to approach this since I've never built an app with this many queries in it. These queries really won't change, just the start date and end date and I have query in my first form that finds out the next available date by checking a table. What I'm wondering is if it would be better to construct these queries in my application or if it would be better to use stored procedures on my sql server to do the same thing and not have the application carry the load of the queries.
Mi am creating a program in vb.net and was wondering if there is a way to perform multiple queries with one button without adding a second button.like i have two text boxes, one is for date and the other is for name. what i want to do is if i hit search and both the date and name boxes are filled, i want it to search for the name based on that date. but if only the name is filled i want to search for everything under that name
I have a rather complicated application (for me anyway). I have a word template setup with text controls. A web app with ASP controls and vb backend code binds data to the text controls using an xml file.
My project contains a DataGridView with a SQL Database Table called Shows. This is a list of TV Shows and I want to apply several filters to it. So I have several different columns to apply the filter to.
Currently I am using RadioButtons to switch between the queries, but I want to be able to have several filters applied at the same time with CheckBoxes.
In .NET, Is it possible to run a nested query from two separate Oracle databases?
[Code]...
Ultimately, this is an effort to overcome an "ORA-01795" error from using an "in" statement with over 1000 items in the conditional list, without having to break the query out into multiple "OR value IN" lists.
I am trying to fill a temporary table with one column( a code) with the unique results of three queries of their respective table adapters.I can't figure out how to do it from here.The database is Access 2007 and I have activated the appropriate dataset on the form from which this code executes. The table adapters are part of that dataset.I could try to use the recordset approach, but that means making another connection to the same database.Is that a preferable approach?My purpose in doing this is to build a VB process like the one that works in a VBA Module of this Accessdatabase, partly to help me learn VB2008 and partly to overcome the necessity to keep updating queries used by the module.Code below
I need to loop through a gridview to find records that match items in a different table (in SQL). Is the best method to loop through the gridview and call an SQL procedure on every loop to find matching records? Or should I pull the entire sql db into a datatable and query the dataset in my gridview loop?
'find source ID based on make/model/serial No combination. Dim cSource As New clsSource() Dim ds As DataSet = cSource.GetSources()
There is not a VB.net database forum, and there is a HUGE difference (unfortunately) between ADO and ADO.net. I have a connection to a MS SQL database, which I understand is capable of handling multiple SQL statements in one Execution, ie
Using cmdExe As New System.Data.SqlClient.SqlCommand sSQL = "Delete * from mytable where UniqueID=123;Insert into mytable (UniqueID, Field) values (123, 'something')" .CommandText = strSingleSQLLine
[Code]....
There are two questions here actually...can I add the parameters before setting the command text, and do I have to add the same parameter over and over again?
I Want to show result from multiple tables from database but how to set property (Setdatasource) for the same in vb.net. Iam using visual studio 2008 back end sql compact 2005
We use an ERP program in conjuction with SQL server and lots of tables that keep track of product records customers and all these kinds of stuff. I am building a fairly simple Warehouse Inventory Application that warehouse employees will use to count and inventory stock on hand from products around the warehouse and then check if any quantity errors occur between stock on hand and logistic quantities.I have created a custom Inventory table that I would populate with records like {stock_code, Description, Quantity_remain, quantity_avail}. Those records already exist in 2 different tables in my database. The aim is that I want my program to fetch daily 10 random codes from the stck table, and records about their quantities,bringing together the "columns" that my new custom table has +2 more editable columns: inventory, date, user with a query like this:[code]
As you can imagine my custom table contains the exact same fields as the query suggests + 3 more.I use the the stck table to fetch product info like its code,description, its group_code, categ_code, and then I outer join the stck_x_th that contains records concerning quantities remaining or available asociated with each product code and the "places" those quantities reside in the warehouse.Then, store them in a datagridview control, with only one editable column -inventory- (user and date columns are auto-populated with default values), and then when the user fills out the inventory quantites, I want to save the datagrid "as it is" in my new custom table.I am creating a databound gridview control using one table adapter (which refers to the inventory table). Then I add to my table adapter using "add query" the forementioned query with a fillby method to populate the Datagrid (and therefore my Table in SQL) with the exact same values my query returned from the different tables. But whenever I try to update the table concurrency exceptions raise.It works like a charm if I enter the values in the grid cells manually, without populating the grid control with the new fillby method my self but not if I populate the grid via a query and then hit update.
i'm new at vb.net (though i have extensive vb6 experience and oracle experience), and i need a sample program/project which uses multiple queries (of the same oracle database namespace) to display counts in text boxes.user will use a pull down list to select action from there.
I am writing a message system on my server, the xml is something like this
<xml> <entry> <sender>[code]....
my problem now i guess is 2 fold, i wish to combine the first 3 queries into a single query and place in a list or a collection or is there a way to do this with a single query that will give me my desired result?
i have a big problem here when i want to insert 6 data into 6 different row in 1 click. in field @ form it have name, staff no.,items, quantity and date. We can select 6 items to insert which i use ComboBox for save the data in form. In this case, each name can choose 6 items in one time and i want to save it in database just in 1 click. that mean it will put a same name in 6 rows in a table. the look like this but it not complete...
How to insert multiple data into mssql without using loop?i'm developing a clinic management system, while doctor may give few medicines to patient,therefore i hope inside my database,the data will look like [code]
my system is kinda doctor gives prescription and medicine, and store related information into database. The case is when a doctor give few medicines to patient, those information have to store in a "RecordID" with few"ItemID" [Code]. anyone knows how to solve my problem, or any similar sample project can give me to refer? [Code].
My files are being inserted but the byte array is showing as a 0x0000... etc for every file after the first inserted file. The first inserted image is correct. The database is set up as an Image type. The problem exists in the code here\
Dim uploads As HttpFileCollection uploads = HttpContext.Current.Request.Files For i As Integer = 0 To (uploads.Count - 1)
How can I insert multiple rows from one table to another. I have query(SELECT which returns multiple rows)from table A and would like to insert all rows (as a result of query) into new tabel B.
I have the following code to add a new row into a datatable and then bind it to a gridview.I need to add a new row anytime i click the Button2.What do i need to change in the code so i can have multiple rows before i submit them to a database?
Private Sub BindGrid() Dim DT As New DataTable Dim Row As DataRow
I have a vb express 2010 program where users submit issues to different persons. The issue is emailed to teh selected persons and also saved in SQL on a server. Question is if they select multiple names from the list box to send the messsage to, how do I insert the multiple names into the SQL table? Here is the insert command I use. It will insert one name but will only do one if multiple names are selected. What am I missing?
I'm working on a program that inputs a text box text into a RichTextBox via a button click. But when I click a button, it over writes the text that is already in the RichTextBox. How can I prevent this?
