Apr 17th, 2006 > this thread brings memory when I was doing my project :(

however, it is better to open new thread with title that describe your problem

As Teme64 said open new thread with appropriate title and you will get more help
However,

Dim currentquantity, fullquantity As Double
currentquantity = fullquantity -...

o, not necessary but I thought it will work
Because I remember that when I once used click event it was fired only when I click the header of datagrid not the cell content :S , you can try (or...

what type T ??

do you get error, or the program run but no change made to database or what ?

do you mean display it on TextBox? if yes then use MouseUp event handler inorder to know when user select the cell, and then display the cell content in textbox

Private Sub DataGrid1_MouseUp(ByVal...

timothybard is right, just Cdbl won't solve it :)

it would be better if you post your code
any way , I think you didn't convert from string to double before calculating,
you wrote like this
Balance.Text = coursefees - installment1.Text
it may...

sorry but I don't understand the problem , you mean the total is always zero?
other thing,in your code what the names of the input textboxes , for example is it RoomService or dblRoomService ?
...

thank you all especailly to ZachMack who remind me of my first post here :D
and welcome to DaniWeb.

1/to use image in the form you need PictureBox Control (http://www.startvbdotnet.com/controls/gbox.aspx)
2/in order to change the picture whenever the user select item from the comboBox you use the...

there are many good tutorials in net like this (http://www.homeandlearn.co.uk/NET/nets12p4.html) and this (http://www.itwriting.com/pcw/vbdotnetdata.php)
you can search for more and it will help...

:) to learn how to program you need to try at first then learn from your mistakes
however, yes that code should read the line 5 to textbox

to read from file line by line you need to use ReadLine method as you did , plus checking if you reached the end of file or not by Peek method

While loadf.Peek <> -1
Line =...

what I understand that the user will enter the value in textbox , after you check that user did not leave it empty you can use it .


Dim save As Double
If TextBox1.Text = "" Then...

if you removed these lines, return them and see if you still have this problem
:S

there is no table 0 in your dataset



sorry I was mistaken here, Record_num should be initialized with -1 not 0

this time it should really work , just be sure of your dataset that it...

the error
"update requires a valid insertCommand when passed DataRW collection with new rows"
tells you that when you add new row using Dap.Update(DsS, Table), you must set insertCommand's...

the problem still the same , you mean it just shows the last record ?

if yes , as I said before initializing Record_num with zero inside the button code is your problem

just imagine what will...

what are the errors ?

is it solved ? or you still have problem :S

the problem that you decleared Record_num inside the next_button code, here each time the user choose next button Record_num will have the same value
define it outside it

public class form1
dim...

i do not understand your code.
>>"this the code for button next n previous" you mean that the same code for next and previous ? each one has its own code
i = 0
For i = 0 To -1
TextBox1.Text =...

you will need dataAdapter and dataset
by using dataset you can update the value of any cell in database
Me.DataSet11.Tables("Table_Name").Rows(0).Item(1) = TextBox1.Text
this will not update your...

first thing you need to store the special characters in array (http://www.startvbdotnet.com/language/arrays.aspx), so you will declear array
Dim SC(36) As charafter that store values
SC(0) = "Ï"...

If myGuess = randNum Then

here you compare between integer and class Random

to solve this
If myGuess = randNumGenerated Then
same thing in the "<" and ">"
but you need to define...

I think the error means that you have variable from one type and you are trying to store in it value from other type .
since you have this error when you add item then I think your sql statement not...

as Jx_Man said you need to have database so you can make it as source of your data
you can use Microsoft Access to create it
read this (http://databases.about.com/od/access/l/aaaccess1.htm) to...

and this (http://www.java2s.com/Tutorial/VB/0160__Collections/0220__ArrayList.htm)is other site
now we are waiting your code :)

Variables that you declared are different from what you used .

write your code here please

You do not declare InitialValue.text you just declare variable as textbox.
textbox has many properties one of them is text
we access properties of InitialValue variable by typing InitialValue....

x = TextBox1.Text.ToCharArray
While continue = True And (i < x.Length)
If IsNumeric(x(i)) Then
y += x(i)
Else
continue = False
...

you need to do as Jx_Man suggest , use Convert.ToSingle

maybe you trying to read while you reached the end of file ,

i think this return length on byte , try this
fLen1 = Int(f1.Length / 4)

error means you defined something as integer then you tried to store in it array of char
I tried the code and I did not have this error
maybe you defined n like this
Dim n As String() ?

yes you can
after you establish the connection with database , and fill the dataset with data, assuming you have datagrid with name dgdFunctionArea
creat new table and define the columns

Dim...

i hope this artical (http://www.vbdotnetheaven.com/UploadFile/tameta/DataGridControl04112005012947AM/DataGridControl.aspx)will help you

to know which row is selected use this
DataGrid1.CurrentRowIndex
to show the value of first column in text box
Me.TextBox1.Text = DataGrid1.Item(DataGrid1.CurrentRowIndex, 0)

see this link (http://www.daniweb.com/forums/thread72816.html)for adding flash file