Adding a records with ms access.if my form load is empty in my textbox and press ok button will show a message box "Records Failled".I'll try to run it and i got an error "Data type mismatch in criteria expression." [code]
View 10 Repliesi have a form with 4 text boxes on them when the user selects add the information from the textboxes saves to my database im just wondering does anyone know how i would make an error message appear if one of the textboxes was blank and stop the new data being saved until all textboxes have data in them?i did write the following peice of code but it did not work Private Sub Button1_Click(ByVal sender As System.Object, ByVal e_
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I have the following form and I'm trying to add a error to the page that if the recordset = 0 then there is a message on the web page stating that there were no results. What's the best way to do that?
Imports System.Data.SqlClient
Imports System.Data
Partial Class _Default
[code].....
I'm having an issue with the startup of my build app with vb2010.Let me explain what the situation is at the moment.
I have a form and a splashscreen. I use the application events (startup event) to check if there is a network connection, if so the splashscreen will run and it will check if the database is available, if this is the case, it will copy the online database to the local ms access database.If the startup check of the network is false, it the user gets a message that there isn't any network available and the program will try to run normal, then when the user clicks the ok button of that message, it will check if the local database has any records. If so the splashscreen will run and the program starts normal (without copy the database, because there isn't any network available).The issue that I am having is, that when there isn't a network connection and the local database is empty, (I do get the message that the local database is empty), but the program still runs, while it should exit.Here is the code of the application event:
Protected Overrides Function OnInitialize(commandLineArgs As System.Collections.ObjectModel.ReadOnlyCollection(Of String)) As Boolean
Me.MinimumSplashScreenDisplayTime = 5000[code]......
I have a program that is using API's to send mouse events and keyboard events to another application that is running. I need to know how to tell if there are any messages left to process for that window after I have click on a button or moved to the next field. I need to know this so I don't send any more mouse or keyboard events until it has finishing processing everything in its message queue. An example is that I click out of the key field and the form has to go out and read a client record. This may take a second or two, so I need to wait until the form is ready for more input.
View 2 RepliesI have a couple of modal popups on my page that hold checkboxes. The checkboxes are different items that can be added to a specific product. Some products, however, have all of one type of item assigned to them. I need a way to show a message in the modal when the modal is empty.
I have tried using a Label inside the modal that says "All features are currently associated with this product." But the label leaves a space in the modal when it's visibility is set to hidden and that was annoying so I ditched that idea.
What is a good way to have a hidden message that shows up when the modal is empty?
<asp:LinkButton ID="FeatureButton" runat="server">Feature</asp:LinkButton>
<asp:Panel ID="FeaturePanel" runat="server" CssClass="modalPopup"
Style="display:none">
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I've got a grid view. I want it to say "you have nothing to show" if there are no details.
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If GridView1.Rows.Count = 0 Then
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However; it seems to be working backwards and showing the message when there is data to display in the gird view and continues to be a blank page when there is not data to display in the grid view.
I've tried a variety of combinations with the below IF statement below but no success.
I have the following code and I want to say that if the datagridview - dgvImportData is empty then say this message otherwise say the other message.
View 4 Repliesi post a new thread with same in my previous topic Using If Statement. If my textbox is empty or no value then clicking a button will show a message box..and if trying to put a value will do event.inserting a record. all i need to know how can i make it that thing.if i try to load without any if statement and trying load it btnok will load a insert record. Just like a LogIn form that will pressing a ok button with no value will display a message box Invalid Username
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i have 3 listboxes and a calculate button and a lblGrandTotalCost, the program works like this when i select an item from listbox 1 and listbox 2 then click "calculate" it shows a result in listbox 3, after repeating this rocess few times if u click the lblGrandtotalCost button it calculates the grand total of all the totals that are in listbox 3, Now i want the program to show an error message if some one click the lblcalculateGrandTotal button when listbox 3 has nothing in it or empty. how do i do that?
i wrote this code but it don't seem to work
If lstGrandTotalCost.Items = "" Then
MessageBox.Show("warning! theres nothing in listbox 3", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning)
Is there anyway to catch or display the request failed with an empty response message somewhere other then in a message box, for a example in a text box? Catch request failed with an empty response message
View 9 Repliescreate a message box that stores my user name, message, and post datetime into the database as messages are sent. Soon came to realise, what if the user changed his name? So I decided to use the user id (icn) to identify the message poster instead. However, my chunk of codes keep giving me the same error. Says that there are no rows in the dataset.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim name As String
Dim icn As String
Dim message As String
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I created a button in my form which is used to add a new textbox.But before that, the button should identify if all the textboxes that have been created are empty.If there is an empty one, it would not add a new one.[code]
View 2 Repliesi have a next button that is enabled only after a textbox is filled its working fine but the problem when a user fills the textbox it will be enabled then clears the textbox it will stay enabled and he can proceed how to stop that ?
View 6 RepliesI'm trying to track down the cause of an annoying interface bug in an app that was ecently upgraded from VS2003 to VS2008 (the bug did not exist pre-migration).What happens is this :1) User clicks in textbox containing a date.2) User clears date3) User tries to move to another field, but can't. No error messages appear - it's as if the validation failed.Further info :1) The textbox's Text property is bound to a dataview which uses a datatable as its source. The bound field is a nullable datetime field with no constraints or default.2) The Validating event fires and the CancelEventArgs property is not set to Cancel. The Validated, LostFocus and Leave events all fire as well, going LostFocus > Leave > Validating3) I can't see any code changes relating to the control or the datasource with a couple of exceptions. The first is that this :
Me.txtRangeEnd.DataBindings.Add(New System.Windows.Forms.Binding("Text", Me.dvClientNos, "RangeEnd"))
has now changed to this :
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I have a form with a textbox, and i would like validation to occur so that a blank field is not allowed
e.Cancel = String.IsNullOrEmpty(TextBox.Text)
Does not always work, because it still allows me overwrite an existing field with blank spaces, and then update.
So, my application has multiple text boxes for entering different numbers. Only numbers..
One problem I've run into is that I get an error when a textbox is totally empty. If I throw at least a zero in there, it works fine.
How would I make a textbox display "0" when someone deletes everything in the text box? I don't want it to be empty, I just want it to show zero.
I have textbox that is empty and where the cursor is flashing and I wish to move to other textboxes.What happens is that the error message is displayed first and when I press OK, only then can I move to the other textboxes. How do I stop this happening. Am I missing some code.
DesterateDan
Private Sub salesInput_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles salesInput.Validating
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Ive got a Form application in VB.NET.I have many text boxes on one form (about 20). Is there anyway to check them all at once to see if they are empty instead of writing out a massive line of code to check each one individually such as
If txt1.text = "" Or txt2.text="" Then
msgbox("Please fill in all boxes")
I'm using the following code to set the cursor automatically (important) to the first empty textbox on my form:
Private Sub FirstEmptyBox()
If TextBox1.Text = "" Then
TextBox1.Select()
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I am using VB.net to create a simple winform. I have the option to save the data I input on that form. I am trying to prevent the user not to save the data if textbox10 is empty. I tried the while loop but I go into an infinite loop. The code is below. The if statement gives the error but allows the user to save.
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I started editing an existing code (basicaly to learn vb) without any real previous experience. Well let's get to the point;I have a form that gathers data from db ordering by user ID (on click count).I have one DataGridView with a list of user,some have data in db, some have not. I came so far that if I CLICK on a user that have data, all data is dissplayed in 6 dinamyc textboxes.If user has no data inly first (emty) row with 6 dinamyc textboxes is created.
BUT THE POINT IS (my question to you) - I have a button that simultaneously adds a row of dinamyc textboxes bellow and multiplyies textbox04 (name is clickcount & 4) and textbox05 and displays the result in textbox06.I want to add a messagebox that shows if textbox04 & 05 are empty and in that case exits sub. Here is my code so far:
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Reset warnings[code].......
My code so far:
If newpound.Text.Length = 0 Then Else
Dim newpound1 As Integer
Static savedpound1 As Integer
savedpound.Text = newpound.Text
newpound1 = newpound1
savedpound1 = savedpound1
newpound.Clear()
End If
What can I put between Then and Else to ignore Dim newpound>newpound.clear?
If the text box is empty and it moves on to the next one.
How do I fill a textbox with text if it is empty? I am using VB.NET.
View 4 RepliesI have an ASP.Net 2.0 textbox which I need to be validated as having some content, but where whitespace alone is valid input. A required field validator seems to reject a pure whitespace input as invalid. A regular expression validator won't fire at all on empty content. Is there a simpler way round this than using a custom validator control?
View 1 RepliesWhen im using a loop in my program and i'm trying to use an Error Provider to pop up whenever a textbox in my groupbox is empty for some reason I cannot get it to work, can anyone tell me what i'm doing wrong?
For Each ctrl As Control In GroupBox1.Controls
If TypeOf ctrl Is TextBox Then
If CType(ctrl, TextBox).Text = "" Then
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I'm not receiving any type of error, it's just that when a textbox is blank the error provider is not doing anything.
how I can allow the program to exit while the textbox is empty but I can't figure out how it works really..it will not allow me to exit,enter, or tab out of the textbox while its empty.
Private Sub gradeTextBox_KeyPress(sender As Object, e As System.Windows.Forms.KeyPressEventArgs) Handles gradeTextBox.KeyPress
Select Case e.KeyChar
Case "0" To "9", vbBack, vbCr
e.Handled = False
[code]....
I am using VB.net to create a simple winform. I have the option to save the data I input on that form. I am trying to prevent the user not to save the data if textbox10 is empty. I tried the 'while' loop but I go into an infinite loop. The code is below. The 'if' statement gives the error but allows the user to save.
While Len(Me.techniciansTextBox.Text) = 0
MessageBox.Show("Please Enter a Technician To continue")
End While
I recently upgraded the MS SQL Server installed on my personal computer from 2005 Express to 2008 Express. Problem is when I try to add an SQL database file to a project using VS 2005 I get an error message saying that the version of my database server is not supported, I must have SQL Server 2005 Beta 2 or later installed. I didn't do it yet but I'm pretty sure that when I open the other projects that I included a database file to it, I'm going to get the same error.
My question is it possible to have two SQL Servers installed on my machine? If so, is it a good idea to have two DB servers in the same machine?
i have a user name, password and a calendar button which when click, a calendar appear and insert the date selected into the date textbox field, and a submit button. After, i key in value for user name and password and click on the calendar button, the password textbox field because empty. So how can i going to stop the password textbox field to become empty when i click i the calendar button?? i set visible calendar only when click on the button
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