I used the following code to save what the user editing , the code don't give me any error code , but in the same time it don't do any thing , the data still without any new changes: [code] I wrote the whole code , so what is the wrong exactly ?There is some columns that may have many same data in its cells .
View 1 RepliesI read an image from the database and displayed it in a picture box...works fine...here is the code for that...[code].....
It throws an error on line 2 saying "A Generic Error occured in GDI+."
How i use to save the filesWith PictureBox1 [code]...
how can i save the files in automatic format now i wannt save the files giving file name starting form 001 to unlimited.
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
[Code]...
i'm working on saving a text file.. the code i have, works without a question, no problem there.Imports System.IO
[Code]...
I am working on a school project but I am getting an error when I attempt to save an altered dataset.
[code]...
make a program in VB.net Ultimate 2010 that will take screenshot of the current desktop and save it to MS Access Database 2000 in a single click of button.
The challenge is the form. Form must be hide first before taking the screenshot so it will capture only the current desktop. After that, it will automatically saved to the MS Access database 2000. I hope someone can help me out of this stuff.
Dim myConnString As String = _
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|Userpass.mdb;Jet OLEDB:Database Password=1234567890"
[code].....
"An UPDATE or DELETE query cannot contain a multi-valued field." That is the error I am getting for the table adapter's update all:
[Code]...
I have a datagridview which fetches data from a local SQL server. Now, I have a setting called My.Settings.database_url which indicates the hostname of the SQL server.
Now, the problem is that if the host name is incorrect, instead of getting an error, the app just freezes. So what must I change in order to fix that?[code]...
I was before knew how to code that it will give me a random number! Also i know it was 2 ways i could make it. A range from like 0 to 100 if i want that. And then it draws a random number from that! And i knew another there i could type in the numbers and it draws a random from there.
View 3 Replieshave Error in update from datagridview and in Save CheckedListBox1 to database so that help me please
Imports System.IO
Imports System.Data.OleDb
Public Class frmtel
Dim ConStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source =" & Application.StartupPath & "Database1.mdb"
Dim Conn As New OleDbConnection(ConStr)
[Code]...
can you teach or give me a code for a simple grading system using VB '10..?
View 2 Repliesi am having an sql query in catch block. the code is: Dim str_exception As String = ex.Message Dim sql5 As String = "insert into table_data(type,description) values
('ERROR'," + str_exception + ")" Dim cmd_sql5 As New SqlCommand(sql5, connection)cmd_sql5.ExecuteScalar() it throws an exception at cmd_sql5.ExecuteScalar().
the exception is - incorrect syntax near 'records'. i tried adding single quotes like'incorrect syntax near 'records' .' .but still it is giving me the same error. I think it is because of the quotes near records. this exception is thrown somewhere else in the code and then it comes to cath block. i want to save the exception in the database.
my save button not work
Private Sub btn_save_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_save.Click
[code].....
I'm trying to make an application that would give me the source code off a web page. But so far I have nothing.
View 39 RepliesDim rp As New ReportDocument
Dim myData As New MyDataSet
Dim dt As New MyDataSet.UserDataTable[code]....
When setting the datasource It comes up with an error:Unknown Database Connector Error.....Error in File C:DOCUME~1A_RAHN~1LOCALS~1Temp1Report {832105B2-2E31-4018-9761-77581CC86142}.rpt:Unknown Database Connector Error
I created that report by Crystal Reports 2008 Stand-alone IDE rather than generating it in VS2010 IDE and it is binded to that dataset dutring the crystal report wizard.
I am developing one desktop application using vb.net 2008 and Microsoft SQL Server 2005. fetching the data from database between a given range.
the date field in my table is of type VARCHAR(25) and the date format stored is dd-mm-yyyy. when I using the between clause in the SQL query then it is not giving all the data every time i.e. the date criteria in where clause is not working fine.
while my clients requirement is to keep the date format as dd-mm-yyyy and fetch the data according to the given range.
I search on the forum and found many queries to fetch the data by converting or type casting the date field within sql query but nothing worked.
The table structure that I am using is as follows
USE [Firm_master]
GO
/****** Object: Table [dbo].[tblTransaction] Script Date: 05/17/2011 21:49:11 ******/
[Code]....
This webservice is almost converted form VB to C#, except I get this error shown below on the DataRow arow object when I use it in the foreach statement below to populate the Results Class with a DataSet Object...
Error: A local variable named 'arow' cannot be declared in this scope because it would give a different meaning to 'arrow', which is already used in a 'parent or current' scope to denote something else
using System;
using System.Web;
using System.Collections;
[code]....
I have a database, 3 or more tables and a one of them with 3 or more columns.In this table i have ID column, Name Column, Date Column etc.I like to select one record for printing and give to the person one or more Receipt of payment (bill).But every time i like the number of Receipt to be unique. For all persons in my table and all payment.
View 1 RepliesI am creating a hotel room booking form. In my mainform I have several controls that i can use to select/fill eg room number, date, name of visitor, number of days booking etc.I also have table adapter that binds the data source I have a save button in my form and I need to create an event so that it saves the data that I have entered in the mainform to the underlying dataset- i have to use endEdit(), DataRowView methods/properties but can't manage to write the save button event.
View 7 RepliesI hoping to find a current and simple way to do this. I'm using VWD Express 2008 and SQL Express 2008.I'm able to get the client's path to the image file using an asp:FileUpload control on the web form.
How do I upload the client's image file and display it in the web form's image control?How do I save it to the sqlserver? The image table is already set up with a "Image" data type column. Can the image be saved to the database as simply as other data types?
find a current and simple way to do this. I'm using VWD Express 2008 and SQL Express 2008.I'm able to get the client's path to the image file using an asp:FileUpload control on the web form.How do I upload the client's image file and display it in the web form's image control?How do I save it to the sqlserver? The image table is already set up with a "Image" data type column. Can the image be saved to the database as simply as other data types?
View 3 RepliesIm making a small program and i think im on the hardest bit at the moment, Writing stuff to a database.Its only the username & password at the moment.Username is in textbox, password in textbox2.I have a list view with my current login in but im having trouble putting a new username and password in.This is the code i have for the "save" button.
Private Sub Button2_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'Add Button
con.Open()[code]..
The above gives me "Number of query values and destination fields are not the same".Ive also had "Syntax error in INSERT INTO statement".I just cannot seem to save anything into the database.I obviously have a connection string and can read from the database.
modify code to insert the data to MS SQL and save changes when click save button for the second time?
View 14 RepliesDim sw
As StreamWriter
Dim flagX
As
Boolean
[code]....
I got a error when I run this code:
Dim btch As String
Dim LeftPart As String
[CODE]...
It says index and location must refert to a location withing string
I have searched the net and the msdn but cannot find code for a simple save and save as for text written within a richtextbox that needs to be saved.
View 1 RepliesI am writing a text editor program and I have written the new, open, save as, exit menu items but I am struggling with writing the save option.Now I have created the menu itself (well vb did, I just used insert standard items) but how do I code up the save menu option so that it updates the current document or if the documnt has not yet been saved bring up the save file dialog.Here is the code I have so far
Public Class Main
Private Sub NewToolStripButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NewToolStripButton.Click, NewToolStripMenuItem.Click[code]....
I know I have some finishing touches such as messages and error handling and stuff but at the moment I want to get all the basics working,I think the save menu option is all I am struggling with at the moment.
Coming across a curious problem... I'm using a SQLCE database. In thebindingnavigatorsaveitem I have the generated code.. the validate, bindingsource.endedit, and the tableadaptermanager.updateall.Here's what I'm doing. I create a record and then click save. Then I decided to delete the record. When I try to save it again, I get an error - "System.Data.DBConcurrencyException: Concurrency violation: the DeleteCommand affected 0 of the expected
View 8 Replies