i have a form with one combobox and textbox now on other hand i have a sql database named balance with two column one as customername and and another as obbalance now i had binded all the customer name to the combobox now what i have to do is wen user selects a customername from the combobox the textbox should show the obbalance of the selected?
View 1 RepliesWhat i want to do is to read a value either null or not null from my oracle database using DataReader and store in a textbox. But i have an error.InvalidOperationExcepionHow can i avoid this error.Or is it possible to catch the exception to ignore null values read by the datareader?If the option is to catch the exception how may i do it?
Dim Dr1 As OleDb.OleDbDataReader = Cmd3.ExecuteReader
Dr1.Read()
lect_name = Dr1.GetValue(1).ToString
[code].....
i have a form with one combobox and textbox now on other hand i have a sql database
named balance with two column one as customername and and another as obbalance now i had binded all the customer name to the combobox now what i have to do is wen user selects a customer name from the combobox the textbox should show the obbalance of the selected customername here the customer name will not be repeated only one name with a customer
[Code]...
Is it possible to have a Textbox on a form that when the user inputs data, ( during Runtime )that data remains in the Textbox for good and the Textbox then becomes read only ? Is it also possible to make it so that the CD with the programme on, is in the PC when the programme is being used. Perhaps writing the Textbox data back onto the CD ?
View 1 RepliesImports System.Data
Imports System.Data.Odbc
Public Class Tranportation_System
Dim read As OdbcDataReader
Public dvrsno As Integer
[Code] .....
[code]...
I want to know how to use a textbox to filter data. Because this code will have to enumerate all of the courses, and will need much buttons.
i have a question maybe someone can help me, i have a form in vb 2008 with a datagridview connected to a table named (kunden) that have 4 colums the data connection named (kunden2.sdf)
one of these colums named (telefon_N), i have a textbox in the form, what i want is that when i enter a telefon number in textbox
it makes filter for the data and return the row with the same telefon_N in the datagridview
I want to display the result in listview that i written in the texbox
View 1 RepliesI have a datagridview1 which i want to filter on text in textbox.
I want gridview to display all rows which contains textbox.text.
in short I just want to have constantly running in the background something to display in LB8 the the contents of LB 2 that contain what is typed in TB1
1Private Sub Name_Change_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
2Dim filtertext As Integer
3filtertext = ListBox2.FindString(TextBox1.Text)
4ListBox8.Items.Add(filtertext)
5End Sub
i want 2 textboxs to read from 2 different lines in my textfile.how can this be done?
View 2 RepliesI am a newbee in vb.net 2008 i am making a simple inventory system.now my problem is i want to get the filter earliest date in my data table and put it to a textbox..
ex.
Product Name Expiration Date
Paracetamol 06/01/2011
amoxicillin 08/12/2011
Mefinamic 12/1/2011
I want to filter the earliest date "06/01/2011" and put it to textbox.
If you dont mind can i have some codes that i can apply to my project? I am using Mysql database and the connection is ok. My problem is i want to filter data's on my database ex. i have 2 textboxes on my project Textbox1= Name Textbox2= Lastname and a database with 2 fields, Name,LName
All i want is if i type my name on the textbox1 and if i already had records in the database the textbox2 will be filled. ex. My record on my database is Erick for my Name and Juan for my LName once i type Erick on textbox1 the textbox2 will show Juan for my LastName??
Which method would be fastest / most efficient?
A) Read all data (822 rows) including those I do not need then filter / output those I do
B) 3 Round trips to the db using params filled via the last query to select only the data I need
search a sql database as write in a textbox, filter datagridview and populate textboxes with selected dgv row
View 4 RepliesI have an access form that shows a data table. when the form is opened, I want to filter the data in the date column to show only the records that don't have a date entered into the field.
View 8 RepliesI am trying to check the value of a field before decided what to input into a drop down list in ASP.net.
I am using datareader.Read() in order to read the recordset so I can do this. However this then skips the first row of data . . The drop down box is basically a list of sizes and colours . . . So currently I am missing the first size.
Here is the code:
Using cmd As New SqlCommand("doGetAllSizesForProduct", oConn)
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.AddWithValue("@id", CType(Request.QueryString("id"), Integer))
[Code].....
i want to filter row and put it in a textbox and filter another row in another text box vb.
ex.
ID--------- Date -------- msg_num ------------ Message <<
10001 -- 01/01/2012 ------ msg1 ------------- Blah! Blah![code].....
I have a datareader pulling data from Oracle. It all works fine but I have one issue. When I issue the read() command ala;
While dr.Read
Column1List.Add(dr.GetValue(0).ToString().Replace(vbCrLf, ""))
Column2List.Add(dr.GetValue(1).ToString().Replace(vbCrLf, ""))
[Code]....
When the code hits that " While dr.Read" line it will hang there for up to 30 minutes which is just a ridiculous amount of time to advance to the next record, which is what the documentation says is all that is happening here. It only occurs the first time it hits that line...once it gets past it once, it does not hang again as it goes through it's while loop.
I'm trying to filter my access database and when I "search" by name, it works, but when I search by policy number it doesn't seem to work.
Here's my code:
If RadioButton3.Checked = True Then
Form3.Show()
Me.Close()
[CODE]...
CODE:
That code works to read the entry data and to recognise the correct data, and the incorrect. However, even if entry is correct, the error msgbox will appear (x times of how many records there are in file), despite being navigated to the menu. Anyway that the Else isn't triggered when data is correct. Also for it to appear just one instead of (x times of how many records there are in file.)
I have 4 textboxs in my new form. and each of them, i want the data from the db show in the txtbox.[code]...
View 1 RepliesPlease any genius can help me about how to display record in text box.and my database is attached in my project not with sql [code]with this connection how i show data record in text box please every one Student
View 7 RepliesHey Friend i am using a form with a *combobox*in which the items i have taken from the
sqldatabase named as balance and that sqldatabase have two columns one is customername and the
another is obbalance now .
In the form i had binded all the customer names from the table and now i have a textbox i want to do is
when the user selects the combobox.selected item any one customer name i need to display the obbalance of the selected customer in tat textbox
[Code]...
Does anyone know how to make label1 show the data in textbox1? I simply can't figure it out.Value of type 'System.Windows.Forms.TextBox' cannot be converted to 'System.Windows.Forms.Label'.
View 12 RepliesMy sql database is :and on form1 objects is 5 X Textbox and 1X numericupdown I want with numericupdown value=1 then first 5 rows column name fill on the 5 textbox and so numericupdown value =2 then fill second 5 rows fill on the 5 textbox and so for all rows repeat.
View 5 RepliesI want to be able to load & read (and later edit) .csv files into a textbox in Visual Basic 2008, If possible.
View 7 RepliesRead Textbox and CheckBox for Update Access 2003 Database
My Code is:
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data Source=ChemiBas.mdb;Jet OLEDB:Database Password=1"
Dim con As OleDbConnection = New OleDbConnection(cnString)
Dim command As New OleDbCommand
command.Connection = con
[Code] .....
I'm only getting started with VB.Net, using VB Express 2008.Using the System.Data.SQLite wrapper, I need to read data off a SQLite database file, and chart data using basic bars, pies, lines, etc. Nothing fancy.
View 1 RepliesHow to display all the data from a database[cod]e...
View 2 Replies