I have a (begginner) question on VB.NET. Is this good code (I mean, is it "bullet proof")?. It seems to work, but I understand the Return is executed AFTER the Finally. So how does it call a method on an allready disposed of object?
We have a multi-line control that we are attempting to prevent the Enter/Return key from being used to create a new line.Strangely enough, "AcceptsReturn" as False does not prevent this.So we added the following:
Private Sub txtAddr_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtAddr.KeyPress If e.KeyChar = Microsoft.VisualBasic.ChrW(13) Then e.Handled = True End If End Sub
This works fine, however one of the QA people discovered hitting Control + Enter still puts in a newline.How would we prevent this?And why does AcceptsReturn being False not work as it appears it should? What is the intended purpose of it?
Does anyone know how I can setup visual studio to use the enter key to complete intellisense, but without moving the cursor to the next line? I use multiple other IDE's that work in this fashion, and VS is really throwing off my rythym with this.
I've seen this type of line in many post on here..I been rolling this over in my head and i think that this line or something close to it is a bad idea. For index As Integer = ListView1.Items.Count -1 the above line assumes that on the last line the person has hit the enter button which is VBCrLf(carriage return and Line Feed) in which case the above line would be ok..however if the last line does not contain a CrLf then you in effect are skipping the last line.
I have a program in VB.Net that receives mails from Outlook, extracts attachments and inserts the attachments into a table through a query. I would like to put the query/queries in a Try/Catch block, but cannot do so as Outlook exceptions cannot be caught, and it gives me an error, and unless I put a very specific exception, I cannot catch it. Is there a workaround?
Try Catch ex As Exception End Try
Exception is underlined and when I hover on it, it says: "Catch cannot catch type 'Microsoft.Office.Interop.Outlook.Exception' because it is not in 'System.Exception' or a class that inherits from 'System.Exception'". This is affecting all my other code which I'd like to put into a Try/Catch block.
The following code causes a "Warning" that Variable is used before value assigned.How do I restructure this Try/catch to eliminate error on the myreader.close command in the Catch part? Code appears to work fine but I dont like Warnings. [code]
i have problem when i click a ADD button, there is one null value in the textbox .. so the try catch statemnt is to catch that null value error but after that the catch is success but the button click never stop excute the statemnt till the end of the button event.
I have this scenario: in a Sub I have a Try...Catch statement.Within that Try..Catch I call another sub.In that 2nd sub is also a Try...Catch.(see below for example).Now if an exception occurs in the 2nd sub's Try...Catch, which Catch gets excecuted? The 2nd one, the 1st one or both?
I am trying to find the code that would be necessary in order to add a dash on a new line when pressing the ENTER key.[code]so it puts the dash but the cursor moves below the dash.Any ideas what I need to keep the cursor beside the dash?
I need to catch log4net exceptions (its own exceptions not app exceptions logged by it). I wish there's a way of doing it this way: [code] I have this code implemented and there's no errors in compilation but i force log4net to have an error (pointing to a non existing database in the config file) and nothing is threw.I've tried the listener aproach: [code] and it's writing the errors to log4net.txt, the forced ones i mean.This last aproach has a couple of drawbacks: it won't append every error to the file, if the error is the same it doesn't write it, i can't get the listener to write every error to that file, only one (I don't know how to fully configure the trace listener, it might be that). Thus it won't append the date and hour to every line wich is a necesity for me. Finally i can't give structure to it (xml). Even if the listener work i need to use the try/catch aproach, since i'm using ExceptionHandling from Enterprise library to log the errors in my app.
when i enter information into the overall textbox say like 4.0 the calcuation should pick it up as 10.0 but its just taking the the 4.0 instead of the 10.0 in the select case. How do i get it to take 10.0 instead of 4.0. here is my code,
The client can enter only four digits in the textbox wich represent the PIN (the text box is not allowed to enter more or less than four digits) . After the client entered four digits the textbox will be read only
My problem :When I put one digite then the text box becomes read-only, i want to enterd only 4 digite ..
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress If e.KeyChar Like "[0_9]" Or Asc(e.KeyChar) Like 8 Then
I have two textboxes. Once the user enters value inthat I want to display it in the datagrid (not saveing in the database)So when he enters say 15-10 values (keep adding in the grid) then he hits save to save it to the database.
So how can I just take the value in from the textboxes and add it to the datagrid?
I am working on my application that I have two forms to work with, as the one are for search and replace text and the other form are the normal form. However, I want to know how I can use the sendkeys on the form1 when I highlight for each line of the text in the textbox on form1 to press the enter key and start firing for each line of the highlighted text?And how I can do the sendkeys to the form1 when I open the search and replace dialog to input the search text in the textbox then click the button to sendkeys on my form1 and firing for each line of the highlighted text? [code]It did not send the keys on my form1 and start firing. It have just input the text as "13". I want to do the sendkeys as enter on my form1.
The folowing code to read text from a text based file into a textbox however the enter key is also displayed (as two small boxes) I need my code to subtract the absolute last character in the textbox how can this be done?
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim ReadALPHA As System.IO.StreamReader
I have a validation class that I use to validate data entered into textboxes on my form. If the data entered does not pass the validity test then the function does the following: [Code] All that works like a charm BUT What triggers the validation routine is when the user either presses the Enter Key OR the Tab Key. If the data is validated the next textbox, (textbox2) is populated with the same data as textbox1 and given the focus then waits for the user to enter new data or press enter which the goes through the validation routine for that textbox.
My problem is way back at the first textbox when the user enters invalid data. As I mentioned above the validation routine populates the textbox with valid default data BUT It also seems to somehow include the enter key because once the default data has been entered by the validation routine it then re-evaluates the data as though the user had pressed enter. Because the data is now valid it moves to the next textbox and never lets the user enter his/her own data.
I have a USERFORM with several CHECKBOXs and one TEXTBOX. When the user clicks a checkbox the textbox appears next to it for the user to enter dollar amounts.I am trying to use the ENTER KEY from the TEXTBOX to set the TEXTBOX.VISABLE to FALSE. But, I cannot get it working. I have tried to use KeyPress, KeyDown, KeyUp and Exit to no avail. When I check for the KeyAscii or KeyCode it is blank. I anly see the numbers that were entered in the TEXTBOX.Do you know how I can check for the enter key from within the TEXTBOX?
here is my problem, I'm using a textbox to enter only letters, no number, so i'm using a loop with a decision structure to tell me that the input data is wrong and prompt to input the data again but when I enter the correct data in the input box, vb2010 display this error "Conversion from string to type 'Double' is not valid.", this problem is making me crazy.
how would i use a "hotkey" so i can have it enter, example if i have a text box which is a chat textbox which the user types into, how would i let it no that the user has clicked enter and it turns on a timer.
So what i have is textbox1 textbox2 and richtextbox1 I want to enter information into textbox1 and textbox 2 and then hit submit so it records the data in the richtextbox as if it is a chart.
My current code for this is RichTextBox1.Text = TextBox1.Text & (" | ") + TextBox2.Text & (" | ") + "Pending"
But every time you hit submit it erases the current data and puts the new one. i want it to record it on 1 line, then when u hit submit again it will go to the next line in the richtextbox and record the textbox information on that line and so on.