VS 2008 : Cmdadd_Click Doesn't Keep Adding Values
Mar 16, 2010
I have a form with 2 txt boxes (income and expenses)I should be able to add various entries into these fields - pressing the Add button after each entry. the values are then displayed in the appropriate labels. If expenses are greater than income - the value is outputted with red font.all of that seems to work, but the add button only allows me to add only the first initial value - no additions. Below is my code for the Add button:
vb.net
Private Sub cmdadd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdadd.Click
'Adds values to approriate fields depending on whether it is income or expense
Dim profit As Double
[code]....
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Dec 10, 2009
I have 1 list view box that has 2 colums. one for the product and the other for the cost. My question is how would I allow a user to add values to that?
My basic layout is, There is a settings window that has about 10 rows of text boxes and 2 colums. I want the user to be able to type in multiple items and prices then hit save and exit for the products to save to a my.setting
and then use this my.setting to bring the users lists up in a list view box.
Since the product and the list price are paired I also need to keep them together in there pairs.
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May 21, 2011
I am trying to add the returned values from an array to the rows in a data table: Here is my current code the values load properly into the list box but not the table, each row ends up with the same value.
current code not working correctly
Dim dtrow As DataRow
Dim lat As Double = CDbl(34.213209)
[Code]....
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Jun 7, 2011
I am trying to create a simple Word doc that when the user presses the button it takes the information in the boxes and tosses it into a template style paragraph. But my issue is that I have two combo list boxes as seen in the picture. I want to have two values in the drop down list as seen in the labels next to them but for the life of me I can't figure out how to do this in Word 2007. In Visual Studio this is much easier but I am work and need to snap this out for the folks at work. Is there an option that I can choose in the properties where I type in the values for each drop down or do I have to add them in at run time?
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Jan 4, 2011
i have retrived this datatable from datasource and i want to add a more colum 'category'basedon the each value of each Role, like if role column has the value '90 daya client' then in the same row it should have a value 'DC' in the category column.n make a temporatry dt1 table but to add related values.
S.No First Name Last Name Role Date
1 Us er1Name User1Name 90 Day Client 11/01/2011
2 User1NameAtt1 User1NameAtt1 90 Day Client 11/01/2011
[code].....
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Jan 27, 2010
I am fooling around with VB for a while now and it is not the first time I created custom controls to use in an application. The situation: I have a database application (FormView / not GridView). The form is designed the following way: At the left I have a Panel1 with TextBoxes and other controls to view / edit dataset records. At the right I have a Panel2 which contains on default a custom control (a number of PictureBoxes mainly) to view / add / delete pictures associated with the currently viewed data record.
On a ButtonClick at a special button on the ToolStrip, I would like to replace that custom control in Panel2 with another custom control (which contains a search with different search possibilities), so, I basically throw out the PictureControl and load a SearchControl instead. This is the first time where I actually designed the custom controls within the actual project. In past, I always developed the custom controls seperately in a new project and later imported the dll. However, my first attempt just does not work and I don't even know where I should start troubleshooting since I don't get any errors.
[Code]...
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Jan 16, 2009
I'm copying code from one VB project to another PC but the 'datagrid' on the copy insn't inserting into the new PC. When the form loads the datagrid is missing. The error I got was that there was something missing from the machine. When I tried to add the datagrid using the 'Additional Controls' it doesn't seem to exist. Any chance I can download the control? The version of VB is 6.5 and its part of a graphics package I'm using.
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Jan 16, 2009
I need to set property values with WMI but it doesn't work. For example:
obj = New System.Management.ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem")
For Each objMgmt In obj.Get
objMgmt("description") = value
Next
That is supposed to set the computer description but it has no effects at all (and doesn't produce any exceptions). I can successfully retrieve value but I can't set it. The "description" property is supposed to be read and write, according to MS.
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Feb 12, 2009
I have a program that generates a daily hex code. What I am trying to do is get the number of days since the start of the year which I can do using the following
Code:
Dim dtStartDate As Date = "1/1/2010"
Dim tsTimeSpan As TimeSpan
Dim iNumberOfDays As Integer
tsTimeSpan = Now.Subtract(dtStartDate)
iNumberOfDays = tsTimeSpan.Days
Then starting from zero (January 1st) increment the code by the hex value "FF6086A" up to the current number of days. So if done correctly the code for March 17th should be BD0A7F78.
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Mar 17, 2010
I was wondering if anyone could give me an idea of how I could accomplish this because I seem to be having a problem with arithmetic overflows:I have a program that generates a daily hex code. What I am trying to do is get the number of days since the start of the year which I can do using the following
Dim dtStartDate As Date = "1/1/2010"
Dim tsTimeSpan As TimeSpan
Dim iNumberOfDays As Integer
tsTimeSpan = Now.Subtract(dtStartDate)
iNumberOfDays = tsTimeSpan.Days
Then starting from zero (January 1st) increment the code by the hex value "FF6086A" up to the current number of days. So if done correctly the code for March 17th should be BD0A7F78.
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Jul 28, 2011
i am writing a golf score program and i have 18 text boxes. i also have a text box that will calculate the total of all of the 18 other text boxes. what would be the best way to add these text boxes? i have already written code to only except numbers 1 thru 8 for each text box.i started with some code like this:
TextBoxTotal.Text = CInt(TextBoxHole1.Text) + CInt(TextBoxHole2.Text) + CInt(TextBoxHole3.Text)
but if there is no value in one of the text boxes i get an error:Conversion from string "" to type 'Integer' is not valid.so i am guessing i need to check for empty strings and then ignore them
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Apr 26, 2012
I'm making an application in school where I have to display the values of domestic, international, and total sales of company "Conway Enterprises." Everything seems to be working except it is not displaying the totalCompany sales as a currency. I'm sure it's probably an easy fix but I've been searching the internet and re-reading my book for awhile with no results. Below is the code, as I said everything seems to be working fine aside from adding the two array values and then displaying them as currency.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
[code]....
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Apr 3, 2011
I have two comboboxes in my form (cbAdresse & cbVerwaltung). Choosing the value in the first combo, i get the value from the table into the textbox txtAdID. Now i try to use the value in the txtAdID as the parameter for the SQL command selecting the values from the table (tblVerwaltung). These values must be added to the second combo (cbVerwaltung). So i use the following code for the SQL Compact Client:[code]Using this code i get the following value in my combo cbVerwaltung: "System.Data.DataViewManagerListItemTypeDescriptor".[code]
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Feb 24, 2012
I am trying to run an event which will search through the different files in a given directory. The goal is to have it search for all files that begin with 'SP_', which are .sql files containing Stored Procedures. I would then like to add the full text of these Procedures to an array to be used later. This is causing an error when run, which I believe is because 'FullProcedureArray()', the string array I am trying to load does not have defined boundaries. When I declare it as 'FullProcedureArray(7)', or with some other value, it appears to run fine. But I don't want to have to hard-code a boundary for 'FullProcedureArray'; I would rather let it be defined by whatever the number of files in the folder is.
My question: Is there a way to declare 'FullProcedureArray' without having to give it an absolute value? I may just be missing something painfully obvious, but I haven't worked with this type of array much in the past.
Dim AppDataLocation As String = "C:FilesTestFiles"
Dim ProcedureArray As String()
Dim ProcedureText As String
[Code].....
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May 16, 2009
I wanna add values from my database to a datagrid, my bigger problem is adding a whole column of values, because I know how to add 1 by 1. So, how can I add a whole column of values from my database?
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Sep 23, 2009
I have DataGridView Named EditRecordDates with column called RecDateApp. Its the 3RD Column in DataGridView--I want to take Value from Textbox called AppDateTextBox and Populate all Rowa in Column with Value
[Code]...
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Jun 4, 2009
I would like to add values to my existing db ie to say:
currently in my db table (trade) has column (buy). It has alr a value of 10 to it. Now when the user inputs a value "20" into the textbox in vb.net, how do i write the syntax such that the user input value "20" will add to the db's "10" which means now the db column (buy) has a value of "30"? Been thinking quite long but no ideas so far.
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Apr 14, 2012
I am having some troubles with a project of mine. Its a basic financial manager for windows mobile 5 using VB.net. Everything works fine, however, when a value is saved in xml, it will be overwritten when another is saved. I want it to add these values instead of overwriting them entirely.[code]
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Apr 13, 2012
I am having some troubles with a project of mine. Its a basic financial manager for windows mobile 5 using VB.net. Everything works fine, however, when a value is saved in xml, it will be overwritten when another is saved. I want it to add these values instead of overwriting them entirely.
Private Sub MenuItem3_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem3.Click
Dim writer As New XmlTextWriter("product.xml", Nothing)
[code].....
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Oct 10, 2009
..i am working in my project i am having problem in the list box part.. .
[Code]....
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May 7, 2009
Im trying to add values stored in an array to a database. Here's a little piece of the code.
[Code]...
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Oct 5, 2010
I am trying to write a small program so I can log times of the jobs I do throughout the day. I have figured out getting the time values and getting the time differences between travel start and travel finish. The problem is i need to add together two sets of travel times to get a total travel figure for the day. I am struggling with the adding of two time values in textboxes.
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May 1, 2012
I'm using ms access 03 to fill a datagridview no problem. I have 4 fields(id, first, last, points), but I just want to fill one in a combobox I have. Here is what I'm using to fill the datagridview:
Dim con As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsPC #6My Documentsstudent.mdb")
Dim sql As String = "Select first,last,points from student"
Dim oledbAdapter As OleDbDataAdapter
Dim ds As New DataSet
[Code] .....
How could I get a combobox to just display just one field, like idk if I'm explaining myself correctly, like a SQL statement look like this:
Dim sql As String = "Select first from student" but just for my combobox.
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Mar 10, 2011
I have to design a project for my IT course at college using Visual Basic. The task is to create a program which allows the user to enter the height of a room plus the width of the walls as well as the paint which costs different prices. I have managed to get the program to work out the cost of painting each wall, but I cannot get another label to show the price for painting a full room, when the result is basically adding up the cost of painting all of the walls. how to add up multiple values displayed in labels?
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Jun 2, 2012
Public Class BasicInformation
Public maleFirstNames As New ArrayList
Public maleFirstNames.Add("John")
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
I want to declare a set of arraylists and the base values so that they are available throughout the entire program. When I set the declaration for the array list as public and attempt to add a value to the array the add.("john")is underlined in blue and it says end of statement is expected.
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Nov 30, 2010
i had a look at how to set values of variables from nummbers stored in external txt files the variables then needed to be added up so i used trial and error first
((XVAL) + (NEWVAL))
assuming that XVAL was set to 10 and NEWVAL was set to 20 i expected to get the answer of thirty but waqs presented with the new value of 10 20 VB.net pysicaly added the two values together but i wanted the mathematical product of the two which is ((10) + (20)) = 30
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May 26, 2012
I use GridView to show/edit data in the database. In the GridView there are two columns called mark1 and mark2. What I want to do is when user clicks update, the program should check if the values entered at mark1 and mark2 sum to 100. If they don't the program should cancel the update and show an error message. How do I do it? I use ASP.NET with VB.
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Nov 15, 2011
I have a sql query with that adds numerical values from different table to find total for a shipment. When I execute this query, it works fine for the first record but rest of the records show null value when I know there are records present. SQL pros take a look if there is a problem with my syntax.
CODE:
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Sep 25, 2011
I have a Datagrid with 5 columns, one of those columns is the only one to have fixed values.Let's put this in a simple way, that column (lets name it column A) contains rows with values from one to ten.With an API call I get some information, lets say I got this:
1 - Andrew - 1.8
8 - Peter - 2.8
Something like this.The first number is equal to the value on the column A, the other two are name and height. I will note receive all the values (one to ten) with call or full information relating to all the columns.How can I assign the information I receive to the proper row based on one of the value I get with the call? Another thing, I will have to create a lot of rows, do I need to add them row by row?
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Mar 12, 2010
I am creating an instance of a Generic List collection and I am surprised to find that I can't add more than one value to it at a time. I was thinking there was going to be something like what you can do with arrays, where you can add a group of values to it at creation. I saw the AddRange method, but that seems to add another collection to the end of this collection, which is not what I want. So my code is:
vb
Dim MyList as New List(Of String)
MyList.Add("John")
MyList.Add("Bob")
[Code].....
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