Show Database Values On VB Form?
Jan 28, 2010Hhow can i retrieve the database values and display it on vb.net form
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Simple VB Syntax To Show Some Values From A Database?
May 24, 2011Im just doing some tests to connect to a mysql database.I do not know how to call these values once I have made the sql query. How do I go about this, i.e. to show the values on the labels on a form?
Code:
Imports MySql.Data.MySqlClient
Public Class Form1
Dim ServerString As String = "Server = localhost; User Id = root; database = CALIBRA"
Dim SQLConnection As MySqlConnection = New MySqlConnection
[code]....
What do I put in the "SOMETHING MISSING HERE"?
Form Show Selected Combo Box Values?
May 13, 2012[URL]
View 1 RepliesWindows Form To Show Contents Of Database In Access?
Feb 18, 2012Any examples of of windows forms that interact with access databases in vb.net. What I creating is a form where you can enter data to a database and delete if need be. But display the contents of a database in a table or tree.
View 2 RepliesInsert Values Into Database From Form?
Apr 15, 2012Having abit of trouble with inserting values that i have in my form into my sql database.Basically it supposed to calculate a customer who borrowed a DVD or CD. I select the date that the customer brings the returned item by selecting a datepicker. The calculation works fine, but i want to insert 3 values into my database under column names that i already have.
The table name is Trnsaction. it has the following coloumn names: Trnsaction_id Member_id Album_id issue_date return_date members_date days_delayed fine The last 3 coloumns(members_date ,days_delayed ,fine) are values i wish to add to my database. The values days_delayed and fine only pop up when i have selected my date (thats members_date) form the datepicker and selected the calculate button
Populate Values From A Database To .net Form?
Jan 28, 2010populate values from a database(Access) in to vb.net form. after selecting a field from first form , the next form should display all the parameters used in the selected field from the data base. Also if do editing n press update it shuld be updated in the database.
[Code]...
Using A Sqldatareader To Read Some Values Into A Form From My Database
Aug 28, 2010I am using a sqldatareader to read some values into a form from my database. I would like to know the number of rows returned by my query and I cant figure out how to do this. I want to use the number of rows returned so that I can redimension an array of values to the correct size. Here is my code I am working with:
[Code]...
VS 2010 Create A Program That Can Access Information Held In An Excel Database And Show It In A Simple Form
Feb 27, 2012how to create a program that can access information held in an excel database and show it in a simple form.
View 2 RepliesCompare Values In Datagridview With Values In Database Before Inserting Into Database
Dec 15, 2010I am building VB.NET application that takes data from text files that are exported from a legacy DOS program. These are written to a datatable and displayed in a datagridview. Right now my code simply loops through the datagridview and inserts the data into the database (SQL Server). There is a requirement now that the client number must be checked before the insert to see if it exists in the database. If it does, then the value of one field (tax rate) is checked against the value of the field in the datagridview. If there is a difference, then the rate is to be updated in the database and the data that was in the database is to be written to a history table for audit purposes. If the client number is not there, then we are to do the insert (which is already written). I want to know what is the most elegant and efficient solution for this problem.
I need to compare what is in the database table with what is in the datagridview, update the history table for records that exist, and then insert new records.
Show Information From A Datagrid Cell To Show Up In A Text Box In Another Form
Jun 8, 2011how do you show information from a datagrid cell to show up in a text box in another form, this is for a college project.
View 1 RepliesVB - Access - Registration Form That Connects To Access Database And Inserts Values In Table
Mar 14, 2011I'm writing an asp.net page with a simple registration form that connects to my access database and inserts the values in the table. So I have my database, my registration page, everything looks fine in my code, but there's a syntax error I can't seem to figure out. When I go on my webpage and click submit, it says : Syntax error in INSERT INTO instruction.
Here's my code:
<%@Page language="vb" explicit="true" debug="true"%>
<%@Import Namespace="System.Data"%>
<%@Import Namespace="System.Data.OleDb"%>
[CODE]...
VB: Getting Checkboxes On Windows Form To Check If Their Values In A Database Field Is Check (True)
May 10, 2011This is my problem.I have a field set up in MS Access to Boolean YES/NO, this field is populated when the user check a checkbox on a windows form. If the user check a checkbox, the value is written as checked in the data field (MS Access).The problem is when I search for the user information, I need the information from the Data base to populate(return) to the windows form. Example: If I enter a users phone number and the user data is present, the form gets populated with the information the user previously entered which was store in the database.Example: If the user selected checkbox1 and submits the form. When I search for the user info, the check box should check(populate) because the user had checked it on submit.Here is what I have done:
[code]...
I am getting the check value correctly in the database using a Boolean.Here is one of the errors I am getting. Unable to cast object of type
'System.Boolean' to type 'System.Windows.Forms.CheckBox.I am having trouble putting the codes in a code tag or block
Xml - Mix Values From Local Data With Values Returned From Database While Using LINQ To SQL?
Oct 27, 2010I am creating an xml file with LINQ as follows...
Public Sub CreateXml()
Dim db As New MDataContext
Dim Customers = <gallery columns="3" rows="3">
[code]....
Could i mix local values with the ones returned from the LINQ query...Something like the following?
Public Sub CreateXml(ByVal **Col** As String, ByVal **Row** As String)
Dim db As New MDataContext
Dim Customers = <gallery columns="& **Col** &" rows="& **Row** &">
[code]...
Msgbox To Show Me Both Values At The Same Time?
Jun 10, 2009Let's say I have the this statment If textbox1.text <> textbox2.text Then
Now I want the msgbox to show me both values at the same time. I know if I want it to show me the value of one of the textbox i just have to use & val(textbox1 or 2.text) &. How do I make it show me both of them at the same time.
No Values Show Up In Labels When The Program Is Ran?
Nov 17, 2009I have designed a program that, when the "caclulate" button (btnCalc) is pressed, it asks the user for a file name, then pulls data from that file (file is a .txt of 100 decimals, one per line) and displays the Total, Average, Highest and Lowest. To do this, I have placed all the data into an array, and then used the array to get the information I need. All the code is in place, the only issue is that when the "calculate" button is pressed and the file name is entered, nothing happens.Need to figure out why the values are not displaying in my 4 labels (lblTotal, lblAverage, lblHighest, lblLowest)!!Here is the code:
Imports
System.IO
Public
[code]....
(For the record, I know I could get the data in one pass, however, being a beginner, I like seeing each value computed separately.)
Sql - Show Previous Day Values In Query?
Jun 1, 2010I have a table which fields are Date, No, Turnover, TotalWin, Opencredit, Handpay, Billin, gamesplayed and I am trying to write sql in vb.net that will show me previous day value but I cant. Here is what I am trying to do.
[code]...
Ok Thomas I am not able to give correct answer to your question because first time in my Life I am trying to write sql. I was doing this with MSAccess and it was easy. Now I am getting pretty simple error I think with this code but I can't find solution again. What is wrong.
Databinding - Unable To Show The Values In The Textbox?
Jul 25, 2009I have a form with lots of textbox, and a dateTimePicker. All of these controls are binded to a JoinTableDataBindingSource. So when I wanted to insert a new value or update the values, I have to rebind all these controls to the respective tableBindingSource.So after saving all the values to database, I rebind them again to the JoinTableBindingSource to display the values accordingly.
All these works perfectly until I tried to bind the DateTimePicker. I am able to show the Date, insert new values to Date, and updating date.However, after all the binding and rebinding,whenever I tried to call tblJoinTruckTableAdapter.Fill (me.dataset. tblJoinTruck), All the textbox.Text becomes "Nothing". I am unable to show the values in the textbox.
Everything works when I commented off the binding and rebinding of dateTimePicker. I seriously have no idea what had happen.Below is the binding and rebinding of my dateTimePicker.'I have clear the databinding before adding this to point it back to its respective table.
dtpTareDate.DataBindings.Add(
New Binding("Value", TblTruckBindingSource, "dtTareDateTime"))
'After inserting or updating the values, I clear the binding and rebind it back to tblJoinTable.
dtpTareDate.DataBindings.Add(New Binding("Value", TblJoinTruckBindingSource, "dtTareDateTime"))[code].....
Show A Few Values In Chart In Horizontal Style?
Mar 9, 2012I'm trying to show a few values in my chart in horizontal style. I don't know where to start. I want to chart look like this:
Val1 ||||||||||
val2 ||||||
Val3 |||||||||||||
Val4 ||||||||||
I don't want to loose five hours to study chart control i need just that small graph. But I'm confused about legends,annotations, title, i don't know what is what
Show Values Based On A Starttime And Endtime?
Aug 20, 2010here im trying to show values based on a starttime and endtime in another column in the same row
what am i doing wrong in this statement
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VS 2008 - Add Values And Show Calculation In Textbox
Jan 29, 2012How do I add 2 text boxes together textbox one = $20 and textbox two = $40 and text box 3 adds both textboxes together to display = $60?
View 3 RepliesAccumulate The Values Of Selected Items To Show Up In A TextBox
Apr 18, 2009I loaded up a checkedListBox with items from a .txt file. The .txt file has itemName, ItemPrice. Every item that gets checked shows up in a listBox on another form. The problem that I am having though is that I need to accumulate the itemPrices of the selected items to show up in a textBox, but the only price that shows up is the price of the item in the checkedListBox that has the focus. I have tried a few different things, but none of them seem to pan out. Any suggestions. I'll add the code to this so that you can get a better idea of what I am missing. I would really appreciate any help with this that I can get. Thank You for taking the time to read this. [Code]
View 15 RepliesBindingsource.filter - Show Only Those Records That Have Null Values
Nov 7, 2009I'm trying to filter all the records in my datatable that have a NULL value for one the fields in the table, I'd like the bindingsource to show only those records that have null values.
[Code]...
Get Selected/Highlighted Values On DataGrid To Show On TextBox?
Aug 14, 2011well my problem is that i have a data grid with id(hidden), name, and number as headers and i have 3 textboxes(1 hidden).the data on the data grid is coming from the database(mysql).like if the entry is like this
-- data grid --
name | number
guy | 20
[code].....
Show Values In Row/column Based On The Selected Time?
Aug 22, 2010im trying to show values in row/column based on the selected time
Public
Sub Btnplanner_Click(ByVal
sender As System.Object,
[code].....
Show Values Of A Particular Column (showing No Duplicates) In A Combobox?
Nov 25, 2011I have a datagrid on my form, it is set to loads CSV
Can someone tell me how I can show the values of a particular column (showing no duplicates) in a combobox?
Textbox To Show Hex Values Including Leading Zeros?
Nov 23, 2011I have a textbox on a form that I use just for output (read only). After doing some calculations I display the value in HEX string as feedback to the user like:
txtReg0.text=HEX(Reg0) 'Reg0 is a UInteger previously calculated
This seems to work fine except the textbox only shows all the HEX characters if the first character isn't a zero. Otherwise, it shows less depending on how many zeros are leading.I WANT to show all (eight in this case) the characters regardless.
Forms :: Show Execution Time To The User Before Values Comes To The Datagrid?
Dec 26, 2009Windows Application
Front End: Vb.net
Backend: Oracle 10g
I am executing the sql query to fetch values and showing it in my datagrid..and when i do that it works perfectly fine...and problem is that it takes 10 min for my datagrid to fill...so in between i want to show the execution time to the user in another form till my query processing completes..
My
Dim oradb As String = "Data Source=zorb;User Id=baady;Password=zacky;"
Dim conn As New OracleConnection(oradb) ' VB.NET
Try[code]......
List (Of String) - Show Values Of Each Column In A Different TextField (Multiline)
Feb 10, 2012I have some data in DB, which i am getting using a WebService in a List(Of String) and returning that List using following [Code] Now i have a VB.net program in which i m utilizing the web service and getting the values using the [Code] Values are fine but they are in a single String() and i want to show the values of each column in a different TextField(Multiline), how can i do that?
View 1 RepliesDatabase Error - Application When Installed, Doesn't Read Values From Database?
Jul 20, 2011When I install my application, some forms are unable to connect to the database.
I say some because, when my login form works totally fine. Authentication happens.
But once I go into the main application, and open other windows, I start to get these error mesages:
[URL]
Database Sql Server Compact Edition 2005 - Save In A Database - Column Cannot Contain Null Values
Oct 15, 2009Ive created one database Sql Server Compact Edition 2005, with one table ("Cliente") I know that I can created my database good, but i have a problem saving information since three textbox, in my table(With columns "Nombre" "Apellido" "Cliente". In my form there is a button save ("Guardar"). When I do click in my button appear the next message : "The column cannot contain null values. [ Column name = Nombre,Table name = Cliente ] " and happen the same with apellido and Id_Cliente. And this happen becouse my code cant save the information....
This is the code
Option Explicit On
Option Strict On
Imports System
Imports System.IO
Imports System.Data
[CODE]...
And the code for my button is:
Private Sub cmdguardar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdguardar.Click
Dim myconnection As SqlCeConnection
Dim mycommand As SqlCeCommand
[CODE]...