Forms :: Dynamic Data Updation In A Textbox?
May 30, 2011
I am working on an application which involves serial port communication with stepper motors. Now I am sending queries to the PLC via modbus protocol. There is one query in which I ask the PLC for the current position of the moving motor and display it in a current position textbox using a DO Loop. Here the problem is the textbox only displays the position at the end of the motor movement and not while the motor in movies though I have included the code to do so inside the DO loop.
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May 30, 2011
I am working on an application which involves serial port communication with stepper motors. Now I am sending queries to the PLC via modbus protocol. There is one query in which I ask the PLC for the current position of the moving motor and display it in a current position textbox using a DO Loop. Here the problem is the textbox only displays the position at the end of the motor movement and not while the motor in movies though I have included the code to do so inside the DO loop. So pls anyone who has the solution for this or any other alternative to perform this type of dynamic data display updation then pls reply.
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Jan 5, 2012
I am using the following code for inserting data to the database
[Code]....
this inserted data to database when programs is running but if i close the program and start again previous data i have inserted are lost ....why ?
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Mar 3, 2009
I have a form that builds and populates dynamic text boxes from parsing a file. There is a "Last Name" text box that when populated, also labels a tab page with the name. After the form is populated, the user can change data as they desire but I was wondering how to update the tab page text when the user updates the last name text box? All the controls are built in code.
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Feb 29, 2012
Basically i have one TabControl with a form and 2 browsers within one form I have ProBlem To call the dynamic browser to navigate with dynamic Textbox.text
[Code]...
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Mar 26, 2010
Is there an easy way of trapping the enter key in a textbox to process the data, instead of having a button beside it?
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Apr 5, 2012
I am trying to put text of my dynamic textbox in some other textbox when user changes the selectedindex of a list.But dont know why it is giving me error's.
Private Sub UserText_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles UserText.TextChanged
If Me.ListBox1.SelectedIndex >= 0 Then
If TBnew.createdTB(Me.ListBox1.SelectedIndex) = 1 Then
[code]....
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Aug 30, 2011
I wanted to simply on click a button to add those newly created textboxes to an array of textboxes. Starting with those labeled "Address". But I am finding this very difficult. I am able to add those originally on the form into the array very easily. But am unable to add the newly created textboxes into the array.
Here is my code so far below.
Public Class Form1
Dim MyBoxes() As TextBox = {Address, UserName, Password}
Dim Numbox As Integer = 1
[Code]....
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Apr 1, 2011
so my program takes what the user enters into a textbox and searches through the data i have stored and if it matchs one of the peices of data it displays the apropriate data to the user. This all worked fine till i changed the textboxes to be added dynamicly to the form when it is load and i put all textboxes in a collection. So now when the text is sent to the search sub it sends the data over but always returns that it didnt find a match. But if i go into the search sub and just tell it what to search for automaticly it finds it no problem.
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Aug 30, 2011
I wanted to simply on click a button to add those newly created textboxes to an array of textboxes. Starting with those labeled "Address". But I am finding this very difficult. I am able to add those originally on the form into the array very easily. But am unable to add the newly created textboxes into the array.[code]....
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Aug 30, 2011
I wanted to simply on click a button to add those newly created textboxes to an array of textboxes. Starting with those labeled "Address". But I am finding this very difficult. I am able to add those originally on the form into the array very easily. But am unable to add the newly created textboxes into the array.[code]...
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Jan 8, 2010
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 ?
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Dec 21, 2009
I use following codes to diplay data in combobox
str = "SELECT sno,name,city FROM employees"
cmd = New SqlClient.SqlCommand(str, con)
[CODE]..............
With ComboBox1
.DataSource = dt
[CODE].......
Table has three fields as sno,name,city Combobox displays name column and data in table is as
sno--name-----city
1-------a------london
2-------b------moscow
3-------c-------tehran
Supose combobox text=a then I want to display following corresponding data in textbox1 and textbox2
textbox1.text=1
textbox2.text=london
(the first row of data)
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May 15, 2012
In my windows application i am inserting bulk insertion in a table for that i am using
Dim da As New SqlDataAdapter("select empno,name,sal from Emp", con)
Dim ds As New DataSet
da.Fill(ds, "emp")
[Code]....
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Apr 25, 2012
I am new to this forum. I have created a module in which declared one structured in public. There were some fields earlier in the structure.
[Code]...
I have included statement includes project.modulename in my main project form where i am referring this structure. everything worked fine. Today, i added new field to the structure by name "example as string" and written some code in module itself to access this field. even this is working fine. but when i am trying to access this field in the main code it is not showing example as structure field and saying not a member.
The drop down suggestion of IDE is not showing this field in main code but in module code it is showing the field. Later, i also found that my debugger is also not working. I tried to clean solution, restart IDE, computer but nothing seems to be working.
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Dec 15, 2011
I am trying to update a element from login table but it not showing any error massageor any thing execution is error free but finally whenever i check the database its notupdated.. i'm using access2007 database with vb 2008
dbprovider = "Provider=Microsoft.ACE.OLEDB.12.0;"
dbsource = "Data Source=|DataDirectory|Ex_m.accdb;" & "Persist Security Info=True;" & "Jet OLEDB:Database Password=123456"
[code].....
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Apr 22, 2010
I am using vb2005 with ms access database.I have a datagridview to show the reports for users.One of my datagridview coloumn is to be allowed for change the string value. Currently editing is disabled.Which is the best method to change the value of that particular cell and updating the same with database.
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Nov 26, 2009
I am using vb2005 with ms access database.I have a datagridview to show the reports for users.One of my datagridview coloumn is to be allowed for change the string value. Currently editing is disabled.
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Aug 16, 2009
I have two tables namely BankAccount and MoneyTransfer to be used in a single form. Here lies my form: Attachment 72574
In the BankAccount table I have got the AccountNo,BankName and CurrentBalance columns.I am fetching the data of these columns during the form load event and filling up the combobox's of the From and To part as shown in the form snapshot. So I did this below code in the form load event:
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
con = New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=C:UsersGautamDocumentsVisual Studio 2005ProjectsEtech_TransferEtech_TransferBankAccount.mdb")
con.Open()
[Code] .....
Now I have a Date and Amount field in the form and I have both the columns present in the TransferMoney table. The user will first select the BankName and AccountNo. from their dropdown list,then enter an amount in the Amount field and ontransfer button click the money will be transfered from the FROM part to the TO part and the BankAccount table will get updated by the current balance of both the FROM and TO part and the Transfer money table containing the Amount and Date column will also get updated by the Amount transferred and the date in which the money is transferred.
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Jul 6, 2009
I have a backend database in MS access, which is updated using excel as front end. Due to network issues the record updation takes lot of time. Would it be faster if i use VB.net as the front end.
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Nov 13, 2010
Firstly though, I'll have to mention that I'm a relative newcomer to vb.net and don't really know that much about advanced functions.I have my main form which dynamically generates 15 buttons.
Each of these buttons will need to open another form, depending on which form has been assigned to that button in a config file (the config file isn't yet done, as I want to get it working simply by hardcoding the name of the forms for the time being)
The way I have it in my head is that I would assign the form name that needs to be open to the name of the button, if that makes sense....However, I have absolutely no clue how to do it, I've tried a couple of things but to no avail.
Here's my code, and I have no problem changing any part of it if it will help things along, this is just the only way I know how to create dynamic buttons.[CODE...]
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Apr 27, 2011
I'm building one application with vb.net, but for my interface i need a static and dynamic view. Can someone explain me how can i do this or with what can be done?
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Jun 6, 2011
I have a form which gets populated by 15 buttons dynamically at runtime (these need to be dynamic as there will be a user config file at some point)What I need these buttons to do is to open a specific form when clicked. Which form that opens will be dealt with in the config file.
Public Class frm_MainScreen
Private Sub frm_MainScreen_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim count As Integer
Dim ImageDir As String
[code].....
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Mar 12, 2010
I'm developing an application which relies on several files to be copied over to a specific location on the users hard drive ("C: est") when they run the program for the first time, and am having a hard time wrapping my head around how to account for the fact that the original location may be in a different location for each user.
Any ideas for either getting the path where the files would be and then copying them to the desired destination?
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Feb 3, 2010
I am trying to create a form where depending on what the user selects, they are shown a collection of images from the web. Depending on what they select there will be a different amount of images so each picture will need to be added dynamically.
I am able to create PictureBoxes dynamically however I'm stumped how to create event handling in order for each control to give a unique response.This is what I originally tried but I got an error..
Private Sub Form1_Load
For i=0 To 10
Dim picBox As PictureBox
[code]....
The error I got was
'AddressOf' operand must be the name of a method (without parentheses)
How ridiculous that you can't include arguments in your AddressOf! Can anyone shed some light on my situation (or knows a better way of carrying out my goal)?
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May 15, 2009
I have a listbox that I am dynamically populating but I cant seem to add a value to the items.. the code is below
Small Issue also it would be nice to put both these tables into 1 dataset instead of the 2 I am using
[Code].....
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Sep 12, 2009
I use VB. NET 2008. I'm starting to work with the Tab Control and command will want to know about techniques such as adding tabs at runtime using this control.
To illustrate what I'm saying, just take one checked on your browser or in the VB (Start Page, when we add other forms to our project).
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Apr 14, 2010
I am using VB for developing a GUI. I need to display charts in the VB form. How do I invoke Excel 2003 using VB and import the charts created in it.
Steps:
1) Getting input from the user using VB form and processing it in VB or external application such as Matlab.
2) Over-Write the processed data in excel sheet.
3) Modify the charts based on the new data which I believe will happen automatically.
4) Display the chart in the VB form.
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May 18, 2011
I am generating 4 textbox at run time at a time when click on a addbutton. if i am click on the addbutton then it will generate 4 button bellow the first 4 text box as proper arrangemnt. all these i am placed in a panel and i put scoll bar for panel also. Now my problem is after generating 25 rows i am getting big gap for ext 4 text box row.
My questin is why its not take this gap when i generated 25 raw of each 4 text box after this gap again it coming fine with next 25 raw with 4 textbox each.then agin it take a long gap..
[Code]...
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Sep 19, 2011
I have a sql query that set data to a dynamic text box. Can some one explain how i have to make this query
"Update Clientgegevens set Clientnaam = '"
& TextBox("& T.ToString &").Text &
"',
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