Message Box If Not Enough Data Entered?
Feb 16, 2012
I have created a program that solves the right-angled triangle by just needing to input two known quantities. I have adapted this code from some I found on another website, it never actually worked, so I spent two weeks figuring out how to get it to work. I have finally succeeded, what I would like to do is display a message box if the user has not entered the required two inputs and presses the 'Calculate' button (see image). I just want it to say "At least two known quantities are required".I have some code that clears all the text boxes so you can enter new data, but I have tried countless times to find a way of coding so the message box appears.
[code]...
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Jun 23, 2011
I am trying to show message when user didn't enter any data in datagrid and click on save button it should display message please enter the required fields but I am using this code for this purpose.
For Each cell As DataGridViewCell In DataGridView1.Rows(DataGridView1.RowCount - 1).Cells
If cell.Value Is Nothing OrElse cell.Value.ToString = String.Empty Then
MessageBox.Show("Please Enter the Required Field(s)!", "ITPCHR", MessageBoxButtons.OK, MessageBoxIcon.Stop)
Exit Sub
[Code] .....
When I click on save button without entering data it give me message please enter the required fields but when I enter the data in datagrid it didn't save data and gives same message please enter the required fields.
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Dec 15, 2007
Im trying to do a lab that will obtain 10 numbers from the user using an InputBox() function, store them internally in a one-dimensional array, and then compute the average of the numbers and sort them in reverse numerical order. The program should control that 10 numbers (no more, no less) are entered, and that the numbers are fully validated as integers.
If the user enters non-numeric data, then an appropriate error message should be shown, and that number should be allowed to be re-entered as a valid number. Then all the numbers should be shown as a list in a 'message box'. So far I can get everything but the message box to show the list of numbers entered.
[Code]...
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Feb 15, 2012
I'm completing an application to display a weather report - unfortunately i can't seem to get the name entered to appear in the message shown and i can't get each picture to appear individually when the radio button related is chosen. Here is the question i'm working off followed by the code i have got so far:
Create an application to display a weather report. The user can choose one of the radio buttons and display an icon and a message. The message should give the weather report in words and include the person's name (taken from the text box at the top of the form). For example if the user chooses the sunny button, you might display "It looks like sunny weather today, John" (assuming that the user entered John in the text box). Include keyboard access keys for the radio buttons and buttons. Include tooltips.
Public Class Form1
Private Sub btnExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExit.Click
'End the project
[CODE]...
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Mar 2, 2012
i just write code for application, in which data is get by user and entered data is to print in a particular format?give me a code for vb.net button by which after click on it will print entered data?
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Mar 5, 2011
Possible Duplicate: DataGridView - Validating for Cell?i have a requirement. i dont know how to get the data from the datagrid after the user entered data in textboxcolumn. i also want to validate the entered text in datagrid cell.
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Jun 2, 2011
i have a problem with the sales transaction. i need to show all the product purchase and i need to show it on the data grid but everytime i input a product it keeps on replacing the data i entered. need code for adding data in the rows of data grid.
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Jul 11, 2010
How can I ensure that a user enters data in one text box before being allowed to move on to the next text box Example I have four text boxes the user can enter a grade in. I want to lock the other three box until the user has entered a number in text box 1. Once a valid number has been entered in text box 1, that releases or enables text box 2. Once a valid number has been entered in text box 2, that releases or enables text box 3. And once a valid number is entered in text box 3, that releases or enables text box 4.
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Oct 6, 2011
Please take a look at the code below. I was told by the individual that developed itoriginally that the code only adds the rows of data the user entered. In other words,there 5 rows of textboxes. user can enter data into one row or into all 5 rows. If the user enters data into one row of textbox, that's what gets inserted into the db.I made some minor change to the code so that users can tell when a payment is made by check or cash payment.Since I made that change, whether a user enters data into one row or all 5 rows, all 5 rows get inserted into the db.How can I modify this code to ensure only rows entered get inserted?
For x = 1 To 5 Step 1
dedval = obr.FindControl("ded" & CStr(x))
chckvalflag = obr.FindControl("chck" & CStr(x))
[code].....
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Mar 7, 2012
Having issues getting my summary textbox, and tool strip to go from disable to enabled after the data is entered
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Jun 22, 2010
i have written my code to to insert data that has been entered into my textboxes n my form into my access database. i am gettin an error message saying: OLEDBEXEPTION OCCURED...Syntax error in INSERT INTO statement.
i was wondering if someone could look over my code and tell me where im going wrong
the code is written for when the button on the form is pressed.
my code is...
OleDbInsertCommand1 = New System.Data.OleDb.OleDbCommand
OleDbConnection1 = New System.Data.OleDb.OleDbConnection
OleDbInsertCommand1.CommandText = "INSERT INTO Admin,(Employee_Forename,
[Code].....
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Feb 12, 2011
I made my first app today. The point is to enter a password and then get into a screen that displays info, and you can edit it by typing in the text box. Is it possible to save the data typed?
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Dec 29, 2011
I have an application in which I want to update only if new data is entered. If no data is entered, then it doesnot update.Any way I can check in the database? If it doesn't update, then it will not give a message that the records updated.
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Jun 4, 2011
check if the entered data is in the same row inside the table using .net?
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Jun 19, 2012
I'm having this weird problem with my windows application, I have fields for entering data into an underlying access database, my problem is after clicking the submit button upon entering the first data it shows neatly in the datagrid but subsequent data entered repeats what was initially entered into the datagrid.
Private Sub BtnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnSubmit.Click
'Sets Null Fields to 0
[Code].....
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Aug 20, 2011
Ok so I have designed a program to figure out commissions for phone sales at my company. Since the devices we sell and their associated prices change over time, I had to make that data within my program dynamic. I have a form within my program (frmprice) that has 160 textboxes - 80 for the devices and 80 for the associated prices. Now I hard coded the .text members with default values for our current stock of phones and prices.
I also added code so whenever that form with the phones and prices (frmprice) closes it saves any changes that have been made to either the phones or prices and when the form loads it overwrites the default data with any data that the user had entered at last run.
HERE is my logic problem. At the very first run the program is overwriting the default hard coded values with "" because no user data has ever been entered before. So when the form with the prices loads, it passes the user entered data from last run which is null because it has never run before. If I test to see if default value <> the user entered data before it executes the code to pass the user entered values it will always test to be true because the user entered data is null at first run. If I test to see if the default value is = to the user data it will always at first run test to be false because there is no user data yet.
HOWEVER once the user entered data is initialized (anytime after the first run) I need the program to pass the user data from the previous runs back in. Just NOT at the first run. Here is the code i am using: (in the code below the variables ending in "val" are the ones that are of the type string and are saved in the application settings) The frmprice_Load Event:
[Code]....
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Aug 16, 2011
How to save a data i entered in vb form into .txt or acces db, for example i have a form, and there is some text box in that form, then i write a text in that TextBox then i save all into txt file or Access DB, and i can open or load that file into my aplication. i use SaveFileDialog but how to make i can chose a file type to save it?
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Apr 20, 2012
I was wondering if there is a button that you can add that will save any data entered into my data grid view?
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Jan 10, 2012
I've got a (hopefully) quick question. I've got textboxes attached to a binding source on one of my forms, and when I add, then clear, the data for the next entry to be added a small problem arises. If the user has previously entered something into, for example, Textbox3 and the user does not have the data for Textbox3 the user cannot move to the next field unless something is entered into the box.
[Code]...
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Jul 6, 2011
Background: I have an web form that autpostbacks a list of bundles to a listbox based on the carriers selected. When Postback happens, all user entered data is cleared. How do I prevent the AutoPostback function from clearing entered data from the forms? [code]
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Feb 13, 2012
We've got a bunch of forms that are using data binding through a binding source control to get text from a textbox into a dataset and then into a database. The problem is that we need to be able to strip trailing spaces before saving the data.
Is there an easy way of doing this without having to go through the dataset manually trimming every string? Ideally everything should update to keep things consistent (e.g. no trailing spaces in the database, dataset or textbox).
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Mar 18, 2011
I am trying to get valid data entered in a Windows Form.I simply used bunch of IF and ElseIF statements to set the conditions.
1. Because the field can only accept letters, I need to filter out characters. Eg: !@#$, stuff like that.
2. I need to apply a loop so that the user is prompted to re-enter the data or to have the error message repeat. Right now the error message display once and that's it.I understand the Do Until Loop but my book shows example only on numbers.
Public Class validDataForm
Private Sub validDataForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
[code]....
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Feb 13, 2011
Is there a way to save every time the user updates a textbox on the form? My reasoning for this is I don't want to lose all information typed into the form if they were to click on the "x" to close the form. I want the form to update whenever they type so if they forget to press a "save" button (or better yet not use a save button) the data won't be lost. I can use a textbox change event handler and code to update my dataset on every textbox in the form but it seems tedious.
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Jan 16, 2012
If I enter a data in a textbox, I want my listview to select the same data entered in the textbox. Example: I have a StudentNumber column in my listview and it has data on it (ex. 123456)
I will enter 123456 in the textbox. The ListView must select 123456?
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Oct 23, 2011
i am just developing a library management system as one of my project. i using vb.net 2010 and the MS Access 2007 as back end. when i save some records into my database through my application it is correctly saved and i confirmed it through opening the relevant table in the database. but when i restart the application all the entered data were missing.
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Nov 5, 2011
We use a database to create Data Collection forms with dynamic items
I used this code to generate labels and textboxes from a table in database (when the user hits the button "load CRF")
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click[code]...
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Aug 22, 2011
I wish to build and display a simple diagram that is built from data entered by the user. Because I can't post a picture of the types of diagrams here I'll use the following example. Image a picture of a house as a child might draw it a large square, with a triangle for a roof, a rectangle for a door, and two smaller squares for windows. Now I want to build an application that lets the user enter data and change that drawing according. For example, by entering the length and height of the house the size changes, change the number of windows, size of the door or height of the roof.
Now this may seem like a useless application but keep in mind the house is just an example the real purpose is different but should be as simply drawn. I'm looking for suggestions on make this work. Should I use a paint? or is something like this better done with a tie into the Visio references?
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Apr 17, 2010
How to check if string entered in a text box matches a field in a data table
I have a form with two text boxes for users to enter their Username and Password. When they enter their details and click the 'Login' button I want their details to be
checked against data in a data table to see if they match or not. I am using an 'if...else' statement but can't work out the syntax to use. My code is as follows[code]...Check when string entered in a text box matches field in data table?
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Oct 4, 2011
I am creating a Calender application using the monthly calender control.I am trying to implement a search for the calendar so a date can be entered into a text box which intern moves the calender to show the date entered. I have been try to figure this out with no luck, is it even possible to do?
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Apr 17, 2010
How to check if string entered in a text box matches a field in a data table.I have a form with two text boxes for users to enter their Username and Password. When they enter their details and click the 'Login' button I want their details to be checked against data in a data table to see if they match or not. I am using an 'if...else' statement but can't work out the syntax to use. My code is as follows:[code]The fields I want to match the textbox strings against in my database table are called 'Username' and 'Password'.
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