I'm pretty new to VB.NET and I'm looking for a comparison to do this:
For Each c As Control In Me.Controls
If TypeOf (c) Is ComboBox Then
If c in (combo1, combo2, combo3, combo4) then
' do some crazy stuff
else
'do other things
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I have the following problem:
Dim MyArray (2) , MyValue as integer
Dim R as New Random
For i = 0 to 9
MyArray (i) = r.next(20)
Next i
Suppose:
[Code]...
please help me to correct the error "TextBox is a type and cannot be used as an expression" for the following statements..[code]
View 1 Replies Using an OLEDB connection I want to do a select statement but for the table I am selecting from, a table member also has to be there too which seems to be messing up my results. Normally I would write to get the column "col1":
SELECT lib1.table.col1 FROM lib1.table
For the table I need the information from, the table has a "submember". From what I have gathered the syntax is something like this:
SELECT lib1.table(submember).col1 FROM lib1.table(submember)
The problem is that the results are giving me every column within the table, not just my "col1" data.
I have a GridView and on a row being deleted I trigger the GridView1_RowDeleting sub, but I receive an error "LINQ to Entities does not recognize the method 'System.Web.UI.WebControls.TableCell get_Item(Int32)' method, and this method cannot be translated into a store expression." Code is:
Private Sub GridView1_RowDeleting(sender As Object, e As System.Web.UI.WebControls.GridViewDeleteEventArgs) Handles GridView1.RowDeleting
' The deletion of the individual row is automatically handled by the GridView.
Dim dbDelete As New pbu_housingEntities
' Remove individual from the bed.
[code]....
The specific line erroring out is:
remove_bed.First.occupant = ""
I have a table which contains a list of products for a company. They input data about how much stock they have and also the level at which they want to be reminded that they need to order new stock.
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I want to list all the true results in a form which the user is then able to navigate through. What would be the best way to go about doing this?
I have two textbox in my application.
Textbox1.Text="19-Jan-2010"
Textbox2.Text="Jan 2010"
May I know how can I compare that Textbox1 and Textbox2 text is within same month and same year?
Is there anyone can post a simple code using vb,that start building a simple games ?
View 2 RepliesHere is the problem: I have 6 numbers in an array(dim ascore(5)) and I want to find who is the bigger one(I would like the number of the variable in the array to be returned, like ascore(2) or ascore(5)...). My mind is stuck!
View 4 RepliesMy collegeue and I have been searching on the net a hell of a lot for a problem he is facing and we so far have been unable to find a resolution.He has an Access Database where one of the columns is of Date format. This date is in UK style (as defined by the Operatins System)
In his application there is a datetime picker which the user picks from he then wants to select * from the access database where the dates match but because the DateTime Picker is giving a US Format date (i.e MM/dd/yyyy) and in the database its UK (i.e: dd/MM/yyyy) its not finding a match and returning no records.
I got a form and a checkbox with default names. In the form1 load event, I need to check the binary data of a registry key.
If data is 00 00 00 00 the checkbox will display a check mark
If data is 1b 00 00 00 the checkbox will shows nothing
Here is my code
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim b() As Byte = {0, 0, 0, 0}
Dim a() As Byte = My.Computer.Registry.GetValue("HKEY_CURRENT_USERSoftware", "Test",String.Empty)
If a Is b Then
CheckBox1.Checked = True
End If
When i save data in my xml file i save a bunch of cities that the user has selected, i then proceed to load the data back into the program and populate the check fields besides the city
vb.net
'// Loop through each one and re-check them
For Each cityToCheck As Xml.XmlNode In nodeList
[code]....
This string stringSplit(0).tostring returns the city name say "Glasgow" i was trying to loop the listview that stores the cities, if they match then put a check mark, this is where the cities are located: (formAddCities.listViewCities.(FIRST ITEM IN COLUMN WHICH IS CITY NAME) the very first column in the listview, but i can't seem to get the right syntax?
Have been obsessed with DataTypes recently and would like some thoughts, etc. on the following: What's going on is when the BindingSource.PositionChanged Event fires, I capture an Integer relating to another tables Primary Key and then filter that DataTable to select the matching record.
So the focus of the question lies in the first 3 lines in the event. First example creates 2 objects, 2 lines of code. Second example does it all with one line... not sure if it creates only one object or not, seemingly not.. can't tell for sure. Which is "better"? Am I really approaching this from the right angle? Beside y'all here on this forum and Google, I'm self-taught and looking for some validation.
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I am looking to compare lines within a .csv file. I want to start at the bottom line and compare values within it to those in the line above and then repeat the process, ie. the second bottom line to the third bottom line and so on.The code used to compare straight out variables I can handle, the difficultly for me lies in identifying particular lines and fields within a text file.If someone would be kind enough to provide the code for this, I have googled it but it's clearly beyond my ability.
View 1 RepliesI'm reading a text doc from my hard drive. I'm reading it via a stream reader.
On a button click i'm reading it again, because the contence of the text doc may have been updated, what I want to do is show in one textbox the actual file and in another one just what is new. How can I compare them?
Trying to make a simple browser with some simple addon's. What Ive done is setup a menu(forum) for the user to enter their email providers web address and it will save it in a xml file. When they click on the email link, it should load the email xml iformation and place that info in the tb_html.text and navigate. I keep getting a null exception and im not sure what going on here. Here is the code:
Browsers:
Private Sub btn_Email_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Email.Click
'Load Action
Dim SavedEmailObj As Storage
[code].....
Is this the correct way to get a datetime value using a sql datareader:
existingETA = existproformaReader.GetDateTime(0)
I want to assign the value to a date variable and compare it to another date variable.
I have this Class:
vb
Imports System.IOImports System.NetImports System.Text Public Class TEST Public Shared DOWNLOAD_LINK As String Public Shared Downuri As String Public Shared Sub Main() Dim URI As String URI = "http://MYWEBSITE.COM/test.html" Dim wr As
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As you can see this class get the .html text and copy to one .txt file. Then it reads the .txt file. Now I just need to compare the string it read with one string from another form... How do I do it? Do I need to change the code?
I want to write a program using vb.net tht compares the name of a document on my desktop to the name of the document on the server. If they're the same then I'd like to retrieve it and have it replace the file I already have.
How can i do this? Does this mean that i have to write a web application cuz i hope not. I dont no anything about those. I am using that server for storage purposes only so i assumed that i didnt need a database for the name of the document.
So, how can i do this? Is there an existing class/package in vb.net that does something like this?
I would like to read a txt file and then check if the same name exist within its sublevel.If found within the sublevel, delte those line.sample txt file:
4272840.ASM M97 BLOC DE CLIMATISATION DENZO VERSION A/C AUTOMATIQUE AUTOMATIC A/C VERSION AIR CONDITIONING BLOCK DENZO F9206101
3786687.ASM M1 -- BLOC CLIM AUTO
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I would like to compare the month of a date with datetime.now, when the datetime.now reaches a month beyond the given date to play a sound. I am novice to this.
View 2 RepliesI am helping a friend convert files from floppy to CD. The files are in WordPerfect for DOS (8.3)format. she named the files as follows: name.month eg; Baker.jan. if there were more than 1 "Baker" files in the same month she named them baker1.jan,Baker2.jan etc... She then copied them to floppies and when one got full she started another. The problem is I have multiple instances of the same filename on different disks so when I copy to my HD windows asks if I want to overwrite the files. I have been writing the names down and renaming them manually. Is there any way to automate this process? I would need to perform the following:
1. Check if floppy filename exists on HD already
2. if it doesn't, copy to HD
3. if it does, is it the same file or different file with the same name (file size has been a good indicator so far)
4.If it's the same =>ignore and go to next file on disk
5. if different, rename then copy to HD then go to next file
6. repeat until all files have been copied
I have 300+ disks to do this with and it is very time consuming.
with vb.net + access 2007 i am having a database with 2 tables & 4.85 lak records
the task:i want to Loop through all the records & compare the Current record with the previous record & edit the database with some changes as per logic i have written a procedure but the process is very slow approximately it is taking 1 to 1.5 second to check & edit a record
here is my code
vb.net
Private Function ISCasuaLty(ByVal CAStype As String) As Boolean 'this procedure checks whether the duty type is of Casualty'& returns true if the casualty is "Y" else "N" FALSE If CAStype = "" OrElse CAStype Is Nothing OrElse CAStype = " " Then Return True ' there
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this time im looking for a faster-than-fast way to read binary files into a string/buffer/whatever, like Delphi's BlockRead does.i need this for an application that checks a list of folders/files and looks for multiple files, and handles them according to specific criteria.
I know there are standard solutions for this, like DuplicateFileRemover (gotta love that sheep! ), but i need something custommade, coz i want to handle the duplicates automatically too, and im talking about GigaBytes of data i have to periodically clean out this way..So far, the algorithm i use to determine if 2 files are equal is this:
[Code]...
I have a 2 textfiles with a few lines of text.
e.g. textfile1
pos1:1
pos2:10
pos3:1
[Code].....
I need to open both files and compare the lines without knowing which line is different. (mgsbox (pos2.value)<< something like this)
I started with not knowing anything and I have built 2 programs over the last month and a half and have learned valuable information from the help of this board. I have 1 last hurdle before I am done and I am hoping to get another tip for this. First of all let me start by explaining what I have done.
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I have to compare an item value in two tables. these two tables are on different database(same server).
I have succesfully generated sql query to return both table values.
the query runs in sql server without any problem and gives the results.
The same query i used in vb.net doesnt gives any result ...
It is resulting with no rows.
Does the connection to multiple databases wont work from vb.net.
The following classes are used to get the result ...
SqlConnection
SqlCommand
SqlDataAdapter
SqlDataAdapter is showing with no records returned. The same query returns the results in sql server query window...
I am attempting to loop through each record in dtlist and compare it to each record in dtsold get the distances and retrive the max value I get an error on the line:
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is string.empty = "" why the fallowing function returns 0
vb.net
Dim String1 As String = String.Empty
Dim StringEmpty As String = ""
MessageBox.Show(String.Compare(String1, StringEmpty, False))
One day i decided to make Checkers (the game). Black and white circles are moving cross the field made of buttons. And i had to program each button (32 buttons) several times for each condition (moving black, moving white, black eating white, white eating black, black won, white won, whose turn it is...) Count that and multiply it by 32. It is really big code for something that simple.
if i can use one function for making all that conditions.
Let's use more simple example: tic tac toe game[code...]