I'm using a NumericUpDown control with a Minimum set to 10 (using for font size setting). When it is changed, it is bound to an Application setting and saved. On Form Load, I am attempting to set the value of the NumericUpDown control to the value stored in that setting (14 for example). No matter what though, it doesn't use the setting's value, it uses the value of the "Minimum" property of the NumericUpDown control.
View 10 RepliesI'm using Visual Studio and table adapters using an Access DB as the backend. I need the minimum 4 digit value. I want to get next available 4 or 5 digit number. And this will change depending upon the users request. Currently I use a table adabpter query. But how would I write a query. I suppose I could do a long iterative loop through all values until I see a 4 digit.But I'm trying to think of something more efficient.
Function GetNextAvailableNumber(NumofDigits) as Long
'SQL Code Here ----
'Query Number Table
[code]....
I'm currently stuck on an issue regarding declaring an array of type short in a structure and having it default to 'nothing' rather than '0' after ReDim.'Declaring array and setting it's initial size
Private Structure Totals_T
Dim sTot_Desc As String
<VBFixedArray(10)> Dim iTot_Cnt() As Short
Public Sub Initialize()
ReDim iTot_Cnt(10)
End Sub
[Code]...
When calling m_Totals(0) the arrays returned have 10 records in the arry with sTot_Desc and iTot_Cnt having values of nothing in all records. When I ReDim m_Totals both the variables I declared in the structure(sTot_Desc and iTot_Cnt) are declared as nothing, it's fine for the String but I need the Short I declared to be declared as '0', which is what I thought happens when you ReDim. Can anyone see what's going on here and why it's declaring my variables as 'nothing' rather than defaulting to '0' for the short and ""/nothing for the string?
I am in the process of creating a system using VB in Microsoft Visual Studio 2008. The system which I am creating is connected to an Access database via a tableadapter.Currently, I am coding a form for a table called Employee and this form allows the user to create a new employee, edit or delete an existing employee. Editing and deleting an existing employee works fine but adding a new employee is causing me trouble. When I specify an employeeID (this is the primary key), the declared value is stored appropriately in memory and it also displays in the form, however once I save the new employee to the database, the employeeID always defaults to 0 for some unknown reason. So, the record which I've just entered has a primary key of 0 regardless of what the the primary key should be.
The employeeID is declared as an integer and the value is obtained by getting the employeeID of the last record in the table and adding 1 onto it. I've also tried hard coding the employeeID and a specific number, but this does not make any diffence. I've reused the code from another part of the system which works fine before, but why it suddenly doesn't work is baffling me. The employeeID field in Access is a long integer.
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I have been working on something for a week or so, trying to get it to work, but regardless of what I do, it is not doing anything. I have two forms, one called frmWorkLogEntryStart and the other called frmWorkLogEntry.
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Is there a way to default the Copy Local property of references that I add to my projects? I figure there has to be some sort of method since adding a reference to a VB componentdefaults to False. (for example, start a project as a class library and then adda reference to System.Windows.Forms, it will default Copy Local False.) Is that somethingin the DLL's settings or configuration that I could replicate in my DLLs to force that
View 14 RepliesI have been creating a call management application and I am having a problem with something that I have spent weeks on trying to get working and nothing I try is working for me. My application is an MDI application written in VB.NET 2005 Professional, using .NET Framework 2.0. It uses a back end database using Microsoft SQL Server 2005.When the MDI application launches, a form is displayed to the end user asking for phone number (MaskedTextBox) and a partner name. The partner names are within a ComboBox.
When the end user types in the phone number and selects a value from within the ComboBox, s/he clicks on the start button. This then opens a second form. The phone number from the MaskedTextBox is to default in a second MaskedTextBox (this I am able to get working without issue.) The partner name selected from the ComboBox is to default on the second ComboBox. This is the part where I have been working on it for weeks and not able to get it to function.
The second form has many ComboBoxes, all of which pull down items from a particular table within the database. Some of them are editable and some are not. The ones that are editable are also auto complete Suggest/Append on the ListItems.I wrote a sub to handle the population of these ComboBoxes and also to handle if they are editable or not. All of this is working. However, my main issue is that I can't get the value on the second form to default to what ever was selected on the first form. I do not get any errors but regardless of what I do, the second form always stays as the first item in the list regardless.
The code I am using is as follows:
<CLSCompliant(True)> Public Sub PopulateDropDownListFromDB(ByVal cboName As Elegant.Ui.ComboBox, _
ByVal TableName As String, ByVal ColumnName As String, _
ByVal UseAutoComplete As Boolean, _
ByVal UseSQLDistinct As Boolean)
[code]....
I'm attempting to invoke with parameters:[code]Value of '415' is not valid for 'Value'. 'Value' should be between 'minimum' and 'maximum'.Parameter name: Value..What does this mean? Is there a way around it?
View 2 RepliesHow would i set a minimum number of characters in textbox1 for a button to work. and if the person does not enter the minimum number of characters, a messagebox pops up sayin something like "need at least 5 characters!"
View 4 RepliesI need to use a trackbar as a scrollbar, but the problem is that the min value is at the bottom i need it to be 0 at the top and maxvalue at the bottom..
View 11 RepliesSqlServer Table1 has data as follows
Sno-------date
1------01/01/2010
8------01/01/2010
1------02/01/2010
[Code]....
1) I want to display the SMALLEST Date into textbox1 which is 01/01/2010
2) I want to display the BIGGEST Date into textbox2 which is 18/01/2010
3) I want to display the BIGGEST SNO against date 18/01/2010 into textbox3 which is 9
4) I want to display total records against date 18/01/2010 into textbox4 which is 3
I created a new User Control. I want to set a minimum Font for it. I put the code in the Font_Changed Event. Here it is.
Private Sub LoginControl_FontChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.FontChanged
Dim myFont As Font
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It keeps telling me that myFont.Size is ReadOnly. How do I get around that?
I have run into a snag in my loop program. I was able to figure out the maxium sum and average of the sum. But am not able to figure out how to:
1) List the minimum value
2) List the sum of the numers divisible by 5.
These are the numbers.text displayed:
5
15
6
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I got a progressbar in my game (Hpbar) and a lots of time the value go under the Minimum Value and it crash... Any way to make it go back to minimum value 0
View 6 RepliesIm doing the auto sign up in some websites but the thing is i want to use the NumericUpDown tool in Vb.net 2008, for example i choose 10 in NumericUpDown then i click the button then it will process or rather it will create 10 accounts... please give me an idea on how to use NumericUpDown... i try to play the code using if else but im stock.....
View 2 RepliesIm doing the auto sign up in some websites but the thing is i want to use the NumericUpDown tool in Vb.net 2008, for example i choose 10 in NumericUpDown then i click the button then it will process or rather it will create 10 accounts.
View 5 RepliesI was unable to get these instructions to work:When pasting in the code below, I get an message that says "Statement is not valid in a namespace".I am using .NET 3.5 for my program, and the code came from:aspx
Protected Overrides Function OnInitialize( _
ByVal commandLineArgs _
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I want to utilize the maximum paper area (A4 size sheet). Therefore I must get the minimum margins that specific printer can handle. I have more printers attached to th pc, so I can not hardcode these values. I have tried to set margins to zero, but that results in printing outside the page at right side and bottom:
PrintDocument1.DefaultPageSettings.Margins.Left = 0
PrintDocument1.DefaultPageSettings.Margins.Top = 0
PrintDocument1.DefaultPageSettings.Margins.Right = 0
PrintDocument1.DefaultPageSettings.Margins.Bottom = 0
So my question is: is it possible to read the selected printers minimum margins without have to open a PageSetupDialog, and therefore make it possible to utilize maximum printing area with code only?
SqlServer Table1 has data as follows
Sno-------date
1------01/01/2010
8------01/01/2010
1------02/01/2010
5------02/01/2010
2------18/01/2010
9------18/01/2010
3------18/01/2010
1------03/01/2010
6------03/01/2010
My questions are:
1) I want to display the SMALLEST Date into textbox1 which is 01/01/2010
2) I want to display the BIGGEST Date into textbox2 which is 18/01/2010
3) I want to display the BIGGEST SNO against date 18/01/2010 into textbox3 which is 9
4) I want to display total records against date 18/01/2010 into textbox4 which is 3
I'm using a vertical trackbar. I got it all set: minimum and maximum values, tickfrequency etc... and so on... everything works great. The only problem is that I would like to have the minimum value of the trackbar on the top. In horizontal trackabar you can choose the RightToLeft property to put the minimum value to the left or to the right, but how do I make it to put the minimum value on the top if I have it in vertical orientation? There has to be a way to somehow "flip" it... but how?
Here is a link to video on youtube, which show my problem. I want it to be the other way round - from top to bottom: [URL]
every thread I've seen is trying to figure out something more complex. as a project for school I am making a grocery list form. I don't know how to work with the numericUpDown control. The form requests this information:
item: (textBox as string)
qty: (this is the numericUpDown)
size: (comboBox: can select from lb, gal, oz, each,.....etc)
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I'am using the NumericUpDown_Validating event to cancel mouse clicks on the up and down arrows of the control.The idea is that the NumericUpDown control will stop incrementing when the base of a form reaches the bottom of the screen. That works, however the textvalue keeps incrementing. Why does the text keep incrementing and how do I stop it?
Private Sub NumericUpDown5_Validating(ByVal sender As Object, ByVal e As .ComponentModel.CancelEventArgs) Handles NumericUpDown5.Validating
Dim y As Integer
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I have a problem in the validation of NumericUpDown control in VB.net. I want it to accept only the numbers, but it is accepting punctuations like '.' and apostrophe also, here my code what I did below, but still the problem persists, I used keypress:
View 4 Repliesim creating a simple timer.it have NumericUpDown and Progress Bar. i use NumericUpDown to set the timer in minutes.I also put Progress Bar to indicates the percentage of times completed.For example if i set the timer to 1 minutes so if it at 0.5 minutes the Progress Bar will show 50% completed.But the problem here is the Progress Bar is not working.
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I've had a look around, once again and can't find how to set the minimum and maximum dates allowed to be selected on a calendar in ASP.net with VB.
I'm using Visual Studio 2010 and it's just a regular Calendar control at the moment...
At the moment I've seen things like:
Calendar1.DateMin = DateTime.Now
But Visual Basic doesn't seem to like that (maybe it's a C# thing?).
I am working on Visual Basic Express and I am supposed to calculate the change from a transaction.
View 1 Repliesi am having a problem in building up a VBcode for getting the minimum distance between a set of coordinate points. what actually i an trying is to find the minimum distance between one set of coordinate points(A(x1,y1),Bx2,y2),C(x3,y3),D(x4,y4),E(x5,y5)) with respect to another set of CO-ord points (i(x1,y1),j(x2,y2),k(x3,y3),l(x4,y4),m(x5,y5))..
ublic Function DoSearch(ByVal SearchCritera As Bracket, ByVal ListToSearchFrom As System.Collections.Generic.List(Of TRacksDefinitions.Racks.Bracket)) As System.Collections.Generic.List(Of TRacksDefinitions.Search.SearchBracket) Implements TRacksDefinitions.Search.ISearch.DoSearch
[code]....
the above is code which i have created till now and the next step is calculating the mindistance criteria..search criteria . rear points is the one we get frm solidworks and b.rearpoints is the one present in database we compare both of them find the one which is very similar to the one in database..
I'm trying to check whether values ar between a maximum and a minimum limit. I do that 21 times, and it works 20 times. In case of the 21. time VB tells me that 15 is less than 8. Here the relevant lines of
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I have a list box on my form with 2 value - "2010" & "2011". When I change the value in the listbox it should set the minimum and maximum value of 2 datetimepickers. Each time I try to change the value I get an error - for example if I change the listbox from 2011 to 2010 I get the error:
"Value of '31/03/2011 00:00:00' is not valid for 'MaxDate'. 'MaxDate' must be greater than or equal to MinDate. Parameter name: MaxDate"
If ListBox1.SelectedIndex = "0" Then
DateTimePicker1.MaxDate = #3/31/2011#
DateTimePicker1.MinDate = #4/1/2010#
DateTimePicker2.MaxDate = #3/31/2011#
DateTimePicker2.MinDate = #4/1/2010#
End If
If ListBox1.SelectedIndex = "1" Then
DateTimePicker1.MaxDate = #3/31/2012#
DateTimePicker1.MinDate = #4/1/2011#
DateTimePicker2.MaxDate = #3/31/2012#
DateTimePicker2.MinDate = #4/1/2011#
End If
I would like to know how you make the minimum value of a vertical trackbar, be on the top?
[ATTACH]This is how it should look[/ATTACH]