I'm searching an MS Access database on a text box entry but I want to validate it to make sure that its not empty and that it is equal to a value in the table, if it meets these requirements it displays the table contents
View 4 RepliesI have some html text in RTB, i want to search for 'class="data"' within the text of the RTB, how should i include the double quotes in the search value
View 2 RepliesIm trying to make a email client, iv got it all working but im looking to validate the email address field to make sure that its actually an email address so it has a @ sign.Also one other thing is, when the client authenticates with gmail id like to catch the error if its not authenticating properly. Is there a way to do this?
View 7 RepliesI have inherited a control and added the Validating and Validated events to it, the validation works when the I set focus on another control but somehow it is not being triggered when a StatusStrip button is clicked hence I need to be able to trigger the validation.
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I have a stored procedure in sql 2005 and I want to use it to validate user login in vb 2005 when users lgin with their username and password
View 4 RepliesI have a form that has a text box that I want to only allow users to enter a date and then a MessageBox.Show stating that their data was submitted when they press a submit button. I know that you can do this with a regular expression validation but I have no idea how to do this in Visual Basic. Can anyone offer how to do that?
View 2 RepliesI have two text boxes on my form (Text Entries) How do I code either the button or the text boxes to ensure entries are made in them Regards
View 3 Replies-When adding a consignment, the system should generate the consignment number automatically in the format XY12-xAB, where x is a number that increases by 1 for each consignment AB is the Shipment Type (EA, SA or SF) and XY12 is the Office ID.I know how to validate it to be XY(digit)(digit) by using regular expression.
If Not Regex.IsMatch(txtShipConsignmentNumber.Text, "(?s)^(XY)d{2}$") Then
MsgBox("Please enter a valid Shipment Consignment Number e.g XY12")
txtShipConsignmentNumber.Select()
But not sure how to implement the other stuff required.
how do I validate that only letters and spaces have been entered into a text box.
Here is a sample of my
Private Sub btnWrite_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnWrite.Click, mnuWrite.Click
If Not txtName.Text Like "[a-z][A-Z]" Then
MessageBox.Show("Please enter your name using letters and spaces", "Error")
txtName.SelectAll()
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I am just adding validation into a new winform. I am using the validating and validated events, in conjunction with an error provider control.No problem with first validation (ie. if user enters more than 12 characters). Error is set in validating event, and error stays until user enters 12 or less characters. Validated event is then entered and error is reset to empty string.
However, there is a problem with the 2nd validation on same text box. The code checks for zero length in text box.. and sets error with provider. Watching in the debugger, this code is indeed invoked, and error is set ok. Then something weird happens, the validated event is (unexpectedly) fired, and the code there promptly resets the error. Why is the validated event fired when there is already an error set ? This seems like a .NET bug. Can anyone suggest another way of doing this, or say what I am doing wrong ?
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HStrange Issue Validating Empty Text Box in Winforms
View 4 RepliesI am having a problem with validating multiple text boxes in using VB.net. I have all boxes validated to display errors if the calculate button is click and the boxes are blank and I have each individual text box to display an error message if the appropriate requirements (values) are not entered. The issue I am having, I don't want these errors to pop up when a user clicks the clear button to re-enter new values,in which this occurs on each box. Below is the code I have for validating each textbox. If a user clicks the clear button (in which clears all text boxes) I still have my errors displayed to them in which I don't want
Private Sub txtLoanAmount_TextChanged(sender As System.Object, e As System.EventArgs) Handles txtLoanAmount.TextChanged
If IsNumeric(Me.txtLoanAmount.Text) Then
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I'm working on a program to calculate Exp left until a title is available in game. I'm trying to validate that the user enters only numbers into the text box. Should s/he enter a letter I want my message box to show and then select the text that was incorrectly entered. My problem is in when the backspace key is hit it again shows the message. I believe it's in the TextChanged event but i'm not certain..
'Handles txtXP Box & Validates user input
'Converts over to a Double Number
'Provides Error Correction if anything other than #'s Used.
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I have textbox on my form, the details are below:
View 3 RepliesI have an application that has more than 20 text boxes used as inputs(numeric) ( in a form with multiple tabs), and from these numeric inputs I calculate many parameters and display them in other text boxes.The question is how can I trigger an event that will run the calculation procedures each time any of the text boxes numeric values change?( with out having to make procedure for each text box validated eventIs there some thing like a common validation event for any entry in any text box?
View 2 RepliesI am writing below code for validating compulsary field account no. in form.User's requirement is set focus back on field when error comes :
If txtAccountNo = "" Then
MessageBox.Show("Account no filed can't be left empty")
txtAccountNo.SetFocus
Exit Sub
End If
It's working properly. But suppose user don't want to fill form and exiting from application.Message box keep on appearing till user enters account no.
i want to ask that how i can open a search page in my vb.net webbrowser with a separate textbox in a tool bar separate from the url text box
View 2 RepliesMy search application isn't working. When the "Search" window pops up, the label stays frozen on "C:". The application isn't freezing, just the search. Why? I can still use the buttons on it, and everything else seems to work fine.
View 4 RepliesI have a problem in that I have five text boxes pertaining to a customer/client, where there is a txtbox for each: Name; Address; City: State; Zipcode. Of course all the txtboxes are "" at initialization. I also have 2 combo boxes and a 2D array for prices which I have finally been able to understand the array logic. I have also been able to do my necessary calculations for.
My problem. The customer information is first to be validated as all being strings and not empty. The combo boxes I was able to get to tie to my 2 dimentional array and get good output and calculations for a finished product. I am just having problems with the error messages. Also I don't want summary totals unless the data is valid. In other words, the user must enter a complete address and make decisions about the two combo boxes, both of which are needed to use the price array. I will change the comboBoxes to represent dress sizes,"S" "M" "L" and "XL" and the other combobox to describe colorRedSatin or colorBlackBroadcloth with a two dollar difference in price between them. 'That would be similar enough to the problem I need to solve.
Basically I do not want any numbers to appear for price of the dress or addons to the dress unless all validation is complete. I do understand how the radio objects work for discounts and check boxes for accumulating accessories. The program should not give any totals untill the user has input all customer information and made decisions about input from combo boxes and selected calculate from menu. Right now it calculates and puts zeros in when choices are not made from the combo boxes by the user. It will include correct amounts for radio buttons and checkboxes if anything is entered. I need error messages for customer inputs and combo box inputs (if not selected from list of option in drop down for choices) (basically if nothing was put in a text box, the text box is empty. Of course the problem is the user must enter something in all 5 textboxes and not get multiple error messages in rapid succession to fix. We can't always count on our users putting in good data.. When I tried a Do While False with ORs I was getting endless looping. I could not get it to work because it will never execute because the control never passes back to the user.
I don't want to list a series of If/Thens becauser the user will see about 7 messages, where he/she only needs to be fed one at the time. I hope someone can give me some direction. I just need guidance on how to validate the text boxes and combo boxes. The code is analyzed with a "Calculate" on the menustrip. I would like for the calculation not to calculate and put outputs into the summery text boxes unless all textboxes are filled and combo boxes are valid for all the customer information and combo box choices for my two combo boxes describing what is needed for the order to calculate. There are also the radiobuttons and checkboxes, DIMs, Const, Variables, but not having problems with that part I have my indexing problems on the combo boxes worked out also, so I am not concerned about those now except for getting the error messages when I should. I hope that I have described my issues fully. I am using visual studio 8 with Windows 7
Im trying to make a search bar that has a Go button now heres where it gets diffcuilt How do i make this search bar take the text in the the text bar and add it into a pre defined weblink and replace a bit of text with that word in the search bar so the user types into the text bar for example they type in NAME HERE so when you click go it taxt for instance [URL] now how could i make it so when you hit the GO button that it takes the text in the textbox and and replaced REPLACE TEXT in the pre defined address and put NAME HERE into the address and then load it up with a web browser and also how would i make it open up with the web browser that the person is useing (since lods of people use diffrent web browsers)
View 3 RepliesI need to search through richtextbox1.text for emails out of a random jumple of text and source code and put the emails in richtextbox2.text.
View 1 Replieslistbox text search by button who navigate with textbox text..My list box contain Images , when i click listbox item then its show picture in right side
View 6 Repliesi have a combobox all names are displayed i want to search by first letter..if i type n in combobox then names starting from n should be displayed in that combobox...how can i do that?i have my code to display all names from database.
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I'm working on an application that will look through an XML file and match strings. However, some of the text in the XML that I'm searching is Cut with an *. I'm trying to search through model numbers, and say I'm searching "RGI6400GB", and the entry in the XML is "RGI6*". Is there any way to search if there's an * in the text and have it able to search like that? Some also have the ending of the model, like so; "*GB".
View 18 RepliesI am trying to set a program that save information to a file(store number, state and name. Then once user put store number and click display it shows the founded result in each box. like state in statebox and name in name box. This is my code so far
for the display button
Private Sub displayButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles displayButton.Click
Dim file As String = ""
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What I am doing is creating a simple login and register system. I am going to save the information of each user into a text or ".dat" format and have them placed into a folder called "accounts".The small problem that I have is the "Forgot Password" option. I can't think of how to search all the documents for the e-mail or the username.So basically I need to know if it is possible to do a small search for the e-mail through all the documents in the "accounts" folder.
-I know another option may be databases...but I don't completely know how to use these.
-I have general knowledge of arrays
I am in a beginning stage vb user.I need to create a program, if I entered the "product code" in a text box / search box, it wants to display its full details from database, such as Product code, product name, description and picture.
so, can any one tell me how am I wanna start this?I dont need complete codes, I need advices and the facts that I need to consider, i like to try it my own.
I use 1 button( i name it btnsearch) and 1 textbox(i named it textboxname).The function of this button is use to search data in database and function of textbox is for user fill name.I want to put messagge box in my code here which if "Name is not found" in my code here.The reason is to inform to user that the name which their find in not in database.Any advice how i able to correct my code to solve this issue. Here is my code.I am using visual studio 2005 & sql 2005 as database .
Public Class Admin
Private Sub Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsearch.Click
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I'm trying to make a program that can do some statistics on text in a rich text box. I'd like to count the number of instances where text appears with a certain back color, for example where text is "highlighted" with yellow.
There seems to be no function to get the backcolor of text at a specific index, you can only get the backcolor of text which is selected, like this:
Dim backColor As Color
backColor = RichTextBox.SelectionBackColor
This means, by applying this nasty trick, I would have to manually select every character in the rich text box before I can find the backcolor:
For i = 0 To RichTextBox.Text.Length
RichTextBox.Select(i, 1)
If RichTextBox.SelectionBackColor = Color.Yellow Then
yellows = yellows + 1
End If
Next
However, this takes a very long time, because the program has to select and deselect every character.
What options are there to speed up the process? Disabling the paint event?
I want to connect to a database Ive created using Microsoft Access 2007. Im using Visual Basic 2005. I also want to be able to perform basic tasks such as searching.
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