I have a datagridview in my project that is loaded with data from a SQL table when the form loads. One of the columns contains names of users in the database. I'm wondering what is the best way to the number of times a name appears in the column. For example, the user name "Rob Smith" might be listed 12 times in the column,I'd like to pass that number to a textbox.
View 3 Repliesi am a beginner in vb8 i have a text file named alarm.txt,sample alarm.txt file is shown below
can someone help me to read the alarm.txt file and extract data.for eg
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This is kind of a brain twister. First, what it involves. I'm writing an application that is working with values sent to and received from an 8 bit micro-controller. There are 8 bits of specified values. Here they are. bit1 = 1, bit2 = 2, bit3 = 4, bit4 = 8, bit5 = 16, bit6 = 32, bit7 = 64 and bit8 = 128.I made a routine that uses 8 checkboxes to add the values for sending them to the micro-controller. That wasn't too hard. In my appp there are 8 checkboxes. Each checkbox assigns one of the specific bit values to a variable (or subtracts it when unchecked). The total of the variable is then displayed in a textbox and ready to send.Now the hard part that ed to take any number between 0 and 255 apart in values that will be a combination of the numbers (1,2,4,8,16,32,64,128) above and show each checkbox which is assigned those numbers to be checked.
View 6 Repliesdesigning a Windows based computer program that will allow a user to enter some number (n) and a choice of a count up or count down for that many numbers. So for example, the user enters 5 as their number and selects the count down option, the message box displayed would contain the message: "Here are your numbers: 5,4,3,2,1,0"
View 14 RepliesThis is what I have, but It doesn't work with strings for some reason (only text files):
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how do i count the number of rows that are affected when I updated a table, and display the number of affected rows in a message box ??
here is my code for updating the table ...
For Each row As DataGridViewRow In DataGridView1.Rows
req = row.Cells(Column1.Name).Value
If row.Cells("Column1").Value = True Then
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In one of my school assignments I am trying to count fields (that are strings) in a database and then publish them to the screen, however I can't seem to figure out how to count them.I've been trying to do something like this but I am having trouble with the bold part. I think the datatypes are the issue but if not this then what? What is a better way to try and do this?
Private Sub btnCalc_Click(sender As System.Object, e As System.EventArgs) Handles btnCalc.Click
Dim numRep As Integer
Dim numDem As Integer
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how to count the content of a specific directory?And how do you delete an old file (ex. say your old program that create a back-up. But it has already created many back-ups and now it takes to much of the space in your hardisk.)
View 3 RepliesWhat is the simplest way to count the number of occurances of a specific character in a string.[code]
View 8 Repliesi have a form which is having 1 list view and a text box. list view having total 100 rows data list view is having a 5 column column 3 is having two words "yes" and "no" i just want to count the number of occurrence of the word "yes" in column 3 the total row can be count with this code: COUNT TOTAL ADMISSION Dim rowcount As Integer = 0
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How would you select the last part of a string starting at a specific character count. For example I would like to get all text after the 3rd comma. but I get an error saying "StartIndex cannot be less than zero."
Dim testString As String = "part, description, order, get this text, and this text"
Dim result As String = ""
result = testString.Substring(testString.IndexOf(",", 0, 3))
how to count the content of a specific directory?And how do you delete an old file (ex. say your old program that create a back-up. But it has already created many back-ups and now it takes to much of the space in your hardisk.)
View 1 RepliesI have a problem with a sql query. Through the query I am trying to search database for any occurrences of string (can be anything) in a column using the SQL LIKE command. The problem is that it works fine for most of the strings say john, jim, ji"m , but does not work when i include the following characters which are ( ' , { , } , and a single quotation mark). MYSQL query takes care of these special cases by putting them in [] block whenever user enters them .But i am getting the following error when i go to query the database using the GetSelectCommand() in VB.NET
Exception Details: System.ApplicationException: Number of values provided must be equal to the number of placeholders in query.I have checked the query over and over again .. but its fine .My database server is Sql Server 2008.So my application throws the exception in this command:
Using reader As MustDisposeDataReader = _
pmSystem.DatabaseManager.GetSelectCommand(selectStatementBuilder.ToString(), New Object() {})
Where MustDisposeDataReader is an instance of a class in an internally developed library, which inherits from System.Object. pmSystem is an instance of the class PlanManagerSystem which implements the commandlayer. GetSelectCommand() takes the select command
I want to make a little program that will count down the hours to a specific date. I.E. "Hours until: ##/##/##"
Like they do for new year and other big events in the world or whatever but I'm having big problems. I don't know how to use datediff to compare the difference in hours from 1 date to the next.
I have two listbox.listbox4 have a number from 0 to 10.i want to count that number and put into listbox5oid to count item 1 - 10 in listbox4.start count from item 11.
lisbox4
listbox5
1
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Can I do it,Like this..
I want to count the total number 0 - 9 in Textbox and put in to ListBox
TextBox1
ListBox1
012
0
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I have a bunch of pdf files in a folder and would like to know the best way to either via a free PDF counter software or programmatically how to count the number of pages for each pdf and put the result in either a excel or access table. I already have the table populated with the pdf filenames. I googled "PDF page counter" and there were a number of hits, however I'm not sure how trust worthy these tools are. So, what some names of trust worthy pdf page counting tools/software and alternatively, are there any good VB.NET code samples that attempt this?
View 2 RepliesI am trying to count the number of records that match Course_ID = 1 in a table.
Here is the expression I am using
=Count(IIF(Fields!Course_ID.Value="1",1,0))
also
=Count(IIF(Fields!Course_ID.Value=1,1,0))
I always get the number of records in the whole table and that is not what I want.
how I can count the number of tabs embedded at the beginning of a line in a text file when im parsing the file.
View 3 RepliesI have a List of String from which I get all values and the count of each value. This is stored into an IEnumerable variable. So I get a (Value, Count) pair in the IEnumerable. I wish to get only the count from the Value, Count pair depending on the Value. Can I get this in one line of code using LINQ? I did manage to get the value. But how do I display this in the console? Here is my code.
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I have a VB report which contains a list of locations. I have this list separated into areas and I need to count the total number of rows per area section. I have a groupHeader which contains my area field, then in the group I list the corresponding entries for that area. Then in the groupFooter I would like to give the total number of entries in the group. How can I do this? I have two fields in my groupFooter
groupCount
groupTotalAmount
I need to arbitrarily count the number of cells in a row. Then return to the cell directly below the cell from which I started counting. In this cell I need to print the number of cells that contained data in the row.
View 1 Repliesi am developing an online shopping site..so when the user adds any item to the cart i store it in a table...now what i want is to count the number of items in the cart as well as update the number of items in cart every time the user adds a new item....
Public Function AddToCart(ByVal itemID As String, ByVal itemName As String, ByVal itemPrice As Integer, _
ByVal offer As String, ByVal buyNo As String, ByVal userID As String) As String
Dim sqlStatement As String = "INSERT INTO shoppingCart" & _
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I'm using vb.net and a DGV to open a access DB. On load im filtering out everything except what was created on the current date. [code]...
View 1 RepliesI am writing a simple GUI for a 7-Zip command that will zip multiple directories, with two files in the working directory, to their own separate archives. The problem is that I have no idea on how to count the number if directories (only directories and not files) and find the name of just the first directory.Here is what I have so far:
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Does anybody know how to count the number of iterations in a for-each loop? I want to have a variable inside the loop, returning the corresponding counter every time the loop iterat
View 5 RepliesI need a TextBox to resize depending on the number of lines entered by the user, I note that TextBoxes has no AutoSize Property.
Is there a way to Count the number of Lines in a Text?
I've googled for a while now, but I can't seem to find it.
I'm looking for a way to determine how many times a character occures within a string.
Let's say for example I want all comma's to be counted in the following string:
'122,333,222,11,44,55'
How can I retrieve the number of comma's? in example 5.
How can i count number of Saturdays between two given dates?
View 8 RepliesWhat I would want, is a way to get a count of how many sub-folders another folder consists of. For instance, if "c:TestAppTestFolder" contains the sub-folders "Videos", "Pictures and "Audio", I would somehow want to get the code to get the value '3' in this case.
View 4 Replies