I have text field that a user enters a date in. Based on what they enter a drop down box will appear or not appear. To obtain the info for the code to control the drop down I am using an auto post back on the text box. This is however making the app a bit clumsy as the user is taken back to the top of the page.
View 2 RepliesI developed a VB form which has a bunch of text fields. I've an external excel spreadsheet. I want a particular cell from the excel file like "A5" & the value to be auto populated in the text field of the VB form. Is this feasible?
View 2 RepliesI have unlimited asp.net checkboxes to my webpage .How to insert checkbox checked value to textbox without autopostback.I i check checkbox1 and checkbox2 then in textbox it appear as 1,2 ...and after when i uncheck checkbox1 then in textbox the value would be 2.and if i uncheck checkbox1 and checkbox2 then value in textbox is blank
View 1 RepliesHow can I make GridView work like DropDownList where you can Enable Auto Postback
View 1 RepliesI have a small page, with a button on it. When I click the button I'd like the code to look at a a field (call the field "InvoiceNumber") in a table (call it "InvoiceTable"), take the last number stored, increment it by "1" then store it back in the "InvoiceTable" and display the new invoice number on the page.Currently the button is called "New Invoice", so clicking this button is going to create a new invoice, with a number one newer than the latest one in the table.
View 2 RepliesProbably a simple question for most of you. I'm putting members of a group into a SQL Database so we can better manage attendance and 'points' that they earn for doing work. I've written the program in VB and have the SQL server running fine. However, I have created a separate table to handle the points and have marked the relationship between the table - the column is named 'PointID', and should be unique for each person. When I add a new user to the database, I want it to automatically assign a value to that without me having to do anything extra beyond pressing save. From this PointID, it should identify the user and it will bring up the person's points.
View 12 Replieshow i can implement below requirement using asp.net and vb.net.I have three fields in a form which are filled by users. Based on these three values, i need to auto-populate the 4th field.I have planned to implement this in the following way.Write a separate class file with a function to calculate the possible values for the 4th fields based on 1st 3 inputs. This function can return some where between 1-10 values. So I've decided to use drop-down for 4th field, and allow users to select the appropriate value.Call the above function in onchange function of 3rd field and take and use the return values to populate the 4th field. I'm planning to get the return values in array field.(Does this need a post back?)
View 3 Repliesso below is my code. I am trying to get the autonumber generated in newdb into txtcallid field. the error i get is that the field is not unique. What i am trying to do is to get the form to fill the db witha new blank record, assign the auto number and then display that number with the blank record info in my form. I will be making it so that the data must be changed before saving so that the form will not be blank save for when it is loaded.
Imports System.Data.OleDb
Imports ChessyFunk1._5._1.ADODB
Public Class frmNewCall
[Code]......
How would I create an automatic updating time field (every minute for instance), without everytime having to refresh the entire webpage?
View 8 RepliesI have a class that exposes an auto implemented property Enabled
[Code]...
But If I had not use an auto implemented property and declared my own backing-field as follows this is accessible from the subclass: Private _Enabled as Boolean ---- EDIT ----
The abve line is incorrect - this is not possible, it was in fact Protected in the original code which allowed access from the sub class See @JonSkeet answer ---- EDIT Of course I can just access Enabled from the sub class to work around this but can someone explain why this is the behaviour?
I am using Visual Studio 2005 (Visual Basic) and MS Access 2003 I am trying to build an application in the lines of the book "Doing Objects in Visual Basic 2005" by Deborah Kurata. So, I have a Data Access Layer (DAL) Class Library that is separated from the business logic layer (business objects) Class Library. I try to add a new business object such as a "Customer" to the Access Database, where the "Customer" table has a PrimaryKey "CustomerID" which is an AutoNumber field. I am successful in writing the values to the database, but I can't figure out how to know the "CustomerID" of a newly added "Customer" so I can populate the business object with the respective values.
View 4 RepliesI have a drop down menu, and based on which item is selected, I call a web service and then dynamically create some text boxes.The first time I drop down the menu and select an item, it works perfectly, and the text boxes are created and populated dynamically. However, the next time I drop down the menu (after the first postback), and select something different..fter the second postback, the original values remain in the textboxes.
View 2 RepliesI have some values in the registry to set the user name, I also have a web browser, How would i make the web browser auto fill in the user name field in the web page window on load?
View 4 RepliesI have a textbox, a sql database, a binding source bound to the sql database. I can use auto-complete mode of the textbox with custom strings and it suggests in in a drop down form as the user types in a textbox. How can I use autocomplete mode with datasaved in different records of a field using the bindingsource?
View 5 Repliesmake the text in a text box into a text file that auto-creates in a specific?
View 4 Repliesmake the text in a text box into a text file that auto-creates in a specific?
View 4 RepliesI have a question, how would i have a button, then when you click it, it puts the text at the text cursor in the RTF?
View 5 RepliesWhen i try to stablish a relationship in dataset designer of these two types i get a "no matching field type" error I'm working with an accdb database
View 2 RepliesI am trying to auto tab to the next text box after my limit of characters has been reached in a text box. Visual Basic 2010 Can this be set in the properties? I have 7 boxes, each allowed to hold only one character.
View 5 Repliesi want to fill up the userID and password fields of the yahoo mail login page with the click of a button on the form but just cant get it right.[code]it just skips the yahooID field and fills out the password field. what is wrong or is there a better way of doing it?
View 1 RepliesBTW I am using VB 2008!
View 6 RepliesAuto Complete of Text Box
View 2 RepliesI have a read only multiline text box I'm using as an output box for a continuous string of data, when my data gets to the end of the last visible line the scroll bar activates and my text vanishes past the bottom edge of the text box and I have to manually scroll the text box to get back to the end of my data. is there anything I can do to make the text box scroll up so I always see the end of the data stream being past to it?
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox2.Text = TextBox2.Text & TextBox1.Text
End Sub
End Class
Above is a really quick and dirty bit, take input from one textbox and output to the other using a button click or some such. After so many button clicks get the text box to scroll without doing it manually with a scroll bar, so you always see the latest entry.
Im new to vb (used to dreamweaver doing all the work Now im in to progging for pc instead of web LOL
right I have 8 text boxes restricted to 4 characters each, have set the tab order but want to curser to move to the next text box automatically after the 4th character has been entered in each box (if that makes sense!)
An example would be on windows xp setup when you type in the product key the curser moves to the next box after the 5 chars for that box have been entered!
I have two text files with various columns, each column is separated by a tab (" "). What I'm trying to do is the following:-If the values in text file 2 column 1 does not contain any value in text file 1 column 1 then add that field to text file 2 and add a 1 to the second column, like so
String 1 If the value in text file 2 column 1 already appears in text file 1 columns 1 then just add +1 to the value, so if the above value is already in Text File 1 Column 1 and Text File 2 Column 1 then it would appear as.
String 2 And if it was to happen again then
String 3 and so on.I have the following coding so far.
Dim lines1 As New List(Of String)(IO.File.ReadAllLines("File1"))
Dim lines2 As New List(Of String)(IO.File.ReadAllLines("File2"))
IO.File.WriteAllLines("File2", lines1.ToArray) & +1)
[code]....
I use the above coding, but it removes the second column?
Possibly a simple question, but I want to be able to "do nothing" if a value in a text box is less then 3 characters[code]...
View 5 RepliesI'm trying to simply prove here that this simple function isn't good enough to prevent every sql injection in the world:[code]I know its not secure, because of googling and looking up other questions on url...[code]I then coppied a Chr(8) from the clipboard and replaced the Chr(8) in the textbox with the clipboard contents and still a no-go.It puts the whole string directly into the field w/o problems.I'm using MS SQL Server 2005, and VB .NET 2005.the Text1 field in the database is a Varchar(600) field (don't ask my why its not MAX, its pointless, i know)There are certain triggers on the table that would prevent a mass update such as this and throw some errors if the injection actually worked right.I know parametrized queries are the way to go here and I'm not looking for answers like "well i dunno why it doesn't work, but parametrized queries are the way to go".I'm looking for the ability to prove that our software is broken and that we need to rewrite it using better principles.how to better filter your text fields, the answer is DON'T! Use the parameters! they are much better, safer, and easier!
View 5 RepliesI have a txt field that is used for comments that is stored in a SQL Varchar(max) field. No matter what I put in there it always is limited to 50 Characters. I was told that it was unlimited pretty much. I need to be able to put in up to 200 characters.
View 6 RepliesI'm working on this project, and when the form loads it should automatically put the Focus on the username field if it is empty, however if there is a username - put the focus on where you write your message.Below is the code, and it simply doesn't seem to work for whatever reason. I have tried several methods of it, and even commented out every other line of code in the application to make sure there was no interference, and there was none. is there anything that could possibly overwrite the ability to do this? Some setting I need to change? etc etc?
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If String.IsNullOrEmpty(txtUser.Text) Then
txtUser.Focus()
Else
[code].....
I am using a label in my form as status label there are may way to save the information in data set for exapmle datagridview cellendedit
Now when it is saved to dataset successfully I show a message to status label "Successful" and else "Failed"
Now my problem is when once successful is visible in status label it is always visible ( of course a silly point from a developer point of view)
I can do it like use a timer cotrol and clear the text after some time but I am already using two timers in my form and more timres can make application slow