i am trying to save data from vb.net form in sql server 2008 below is the code which i am using but the only problem is . i am not getting any error instead the data which is being saved in sql server in my First Name , Last Name and Address fields is not the one i insert into textboxes, when i check the backend it shows me my field values as first name , last name and address.
Dim FirstName As String
Dim LastName As String
Dim Address As String
rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary> ''' The TreeViewDataAccess class allows the nodes within a TreeView to be ''' persisted to xml for later retrevial. ''' </summary>
I have binded a textbox to a column in a SQL Server 2005 Database, when i fill the dataset it displays the data, but when i click the save button it doesn not save the changes to the database. I used this same code to do a Datagridview and it worked fine. [code]
I have a string with Binarydata that is 64bit. I want to store this data into SQlServer database and the column is varbinary(Max).When I pass the string I am getting an error saying string cannot be converted into varbinary.
I am trying to save(export) data from a table in sql 2005. the version of office used is 2007.
I through something together quickly, thinking it would work.. but now I am not sure why its not.? everything seems to work, no errors or anything.. just no excel file either.
Try Dim strfilename As String = "" Dim intOpenResult As Integer = vbOKCancel
A variety of files (pdf, images, etc.) are stored in a ntext field on a MS SQL Server. I am not sure what type is in this field, other than it shows question marks and undefined characters, I am assuming they are binary type.
The script is supposed to iterate through the rows and extract and save these files to a temp directory. "filename" and "contenttype" are given, and "data" is whatever is in the ntext field.
I have tried several solutions:
1) data.SaveToFile "/temp/"&filename, 2
Error: Object required: '????????????????????'
???
2) File.WriteAllBytes "/temp/"&filename, data
Error: Object required: 'File'
I have no idea how to import this, or the Server for MapPath. (Cue: what a noob!)
This works, but the file should be saving to the server instead of popping up save-as dialog. I am not sure if there is a way to save the response to file.
I'm working in .NET solution Visual Basic that makes reporting of a database using Crystal Reports for .NET, and I want to store each report after it been generated in the database in xml or in PDF just tell me how?
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
am pretty new to VB and i am slowly teaching myself .I am working on a project at the moment which will write to an access database. I have created the database with contains about 40 fields. i Have a form which the user inputs the data into whose controls are bound to the corresponding fields in the database . I have been reading up on what a could but the more i read the more lost i am getting.
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
I populate a datatable using a dataadapter. the select query pulls data from a view in which I combine multiple tables. Now I need to run different update statement etc to update each table. foe example I will update balance field in the accounts table using one query and another to update days present etc.
how should i do this? must i loop through each row in my datagridview?
below the form i have a button that saves the data to a text file called 'mailinglist.txt'
So i enter the data into the fields and click the button like as follows:
Full Name: John Smith Amount Contribted in �: 40
However..... when i go view the text file it displays John smith40, which i want a space between the name and the numeral.
Also as i want a maximum of 5 people added to the mailing list, i would like a function that lets me somehow "adds" an extra 4 people to the text file without overwriting the 1st name, and uses the same "current" form displayed to the user.
Here is the code as follows:
Public Class Form2 Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged
I need to control a device with a GPIB port. I have the commands that I need to use to do this; but I don't know which is the sintaxis in Visual Basic.
For example if I need to send a instruction like "START:0.01" to the external device which are the libraries that I have to include?, how should I write the programming line to do this?
The main tasks that I need to program are sending data, receiving data, and saving data
I have the following code which I mashed up from several sources:[code]This works great until I add another POST parameters to query, like "client=mgdf&version=100".No errors are thrown, the program doesn't crash, nothing. It simply stops working. How can I POST multiple values to my server?
how to update the data of an SQL server 2008 express using vb.net 2008? My raw data actually from excel file only and i want to transfer all the data and merge it in my newly installed SQL server 2008.Normally im updating it daily that is why i want to create code.
An error occurred while saving the Panel. System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index at System.ThrowHelper.ThrowArgumentOutOfRangeException() at System.Collections.Generic.List`1.get_Item(Int32 index) at PanelController.Save(Int32 ID, FormCollection FormValues)
During debugging, I checked the parameter it was adding to the save stored proc, and the ID it was adding was 0. Then, when it used this
my code doesn't show anything when ever I start on my button "start recording" it starts to record every keystroke on the and show it in a textbox and after that i am trying to get that data into text of a sql 2005 database with vb vs2008 but when ever I click on the button to show me the saved data , retrieve from database, it doesn't show anything, why?
and I also want to create new row everytime the new object is created...thnx
Databse Class
[code]
Imports System.Data.SqlClient Public Class DataSaver Private sqlConnection1 As SqlConnection
i want to take back up of our data base data i request to you for give best solution for it .. code .. and it will also run whenever some one accessing our vb.net project?
I've been trying to write code to import Excel files into a SQL Table using the following code (url...) with little success.
This is a VB.Net app using Visual Studios 2008 with SQL Server 2008 on a Vista Ultimate 64 machine.
The runtime error encountered is: "COMException was unhandled...Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done."[code]...
I have the following code for SQL insertion, but how can I prevent data dublication in vb.net so that the same data is not entered twice? I mean can I add a exception in my code to check if one of the field in the sql server table contains the same data? [code]
I'm trying to update a data user using vb.net2008 and sql server management studio express for my backend. the error says "must declare the scalar variable "@username" here's the code .[code]...
I need to solve the following problem:- Create a server application which generates a random number every second- Have any number of client applications access the current random number through a dll (associated to the server) at anytime How would I do this? Anyone has a prototype VB.Net code for the server which does this kind of thing? I'm pretty sure I know how to write the client code.
My problem is that I would like to know that if some data from client has arrived to the server, I would know its length.Now I m getting an error at: mClient.GetStream.EndRead(ar). It is saying that ar cannot be empty. [code]
