Comparing Two Columns From Different DGVs?
Jan 16, 2010
I have 2 DataGridViews, each has a similar column:
DGV 1 has column named "LOCATION"
DGV 2 has column named "FC_STORE_NO"
The problem I face is that the data contained in each is just a BIT off of what I need to compare them. LOCATION has the store number as a 5 digit number, usually 3 digits with 2 leading zero's, but not always. The FC_STORE_NO has the number stored with no leading zero's. I need to loop through the the first DGV's rows, comparing this LOCATION column to the FC_STORE_NO entries to find a match, but I don't know what my condition would be to match the two..
For example:
I need 00577 to match 577
00001 to match 1
00026 to match 26
Any way to convert that DGV field to the correct format (5 digit) before displaying it would work too?
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Jun 29, 2011
i have imported some data from excel and into datagridview but does anybody know the code to compare data in 2 columns to see if they are equal and if they are not equal a messagebox would show "there are errors" else it would show "there is no error, you may continue".
the attached file is an example of the excel data i imported to datagridview.
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Oct 26, 2011
I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
[Code]...
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Nov 30, 2010
My goal is to connect to my database either manually or using an sqladapater, and get information from two of my databases on sql server 2005. Then I want to take this information and on run-time begin to add/subtract/divide/multiply certain columns and place the information into other columns. I can do this in queries, however, I want to do it on run-time what is the best way to achieve this.I had some of this working, but I just want to start fresh and see how you would go about doing this.
[Code]...
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Jun 29, 2011
I have the below Linq query that is returning the data but I need to aggregate the columns to group on the Period and Sum the Count columns. How do I go about doing this?
LINQ
from t In tblTimes
join h In tblEngineeringDashboard_CADMachinesCounts on t.ID Equals h.TimeID
Order By t.Period
[code].....
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Oct 15, 2009
I am using the following code to alter an table imported from an Excel spreadsheet
Dim SQL As String = "ALTER TABLE receipts ADD payee integer, account integer, category integer, reconciled boolean"
Dim dataread As New OleDb.OleDbCommand()
dataread.Connection = Connection1
[code]....
Both ExecuteNonQuery() actions yields the exception message {"Syntax error in field definition."}The error message does not happen with the first if the boolean column is not there (I tried Tes/No as a definition - but that also failed.The second query to modify the ID column from autonumber to integer I assume fails because it is a Primary KeyHas?
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May 23, 2011
Imagine the following scene: I have one table which have tree columns (ID, Number, Name).
A Select query result on this:
code:
Now, the user deletes the Number 3 and 4. So, now the Select query is going to be:
code:
And I want to have:
code:
How can I organize the column?
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Mar 20, 2012
I have the code below on a timer( "b" is a bitmap )
If
Not (Clipboard.GetImage
Is
Nothing)
[Code]....
The problem is that it raises the event even if the picture didn't change.
comparing the 2 images without actually comparing them pixel by pixel (too slow to do the job)?
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Feb 21, 2011
I've the following code which successfully makes an average for all the columns from a table. What I need to do though is ignore certain columns in this equation.
Dim totalNumber as Double = 0
Dim count as Integer = 0
For x = 0 To xyz123.Tables(0).Columns.Count - 1
[Code]....
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Feb 28, 2010
Averaging columns in a table - ignoring certain columns
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Feb 18, 2010
What should I use and how to use something that functions like a label box but can handle several columns and columns? Something that looks like this. [code] Name | Age | Birthday are headers and the letters are variables
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Oct 6, 2011
I have a datatable property called prpParametersTable in a class called clsBatch. I have a procedure that sets a datatable variable called dtP equal to prpParametersTable at the beginning of the procedure. I then add three new columns to dtP.Here is my problem. When I add the three new columns to dtP my original table prpParametersTable also gets those columns added to it, why? I only want to add the three columns to dtP and not prpParametersTable. How can I do that?
Private Function prvfnc_InsertBatchParameters(ByRef cnn As SqlConnection, ByRef trans As SqlTransaction) As String
' set new columns that have BatchID, Insert DateTime, and UserID for the SQLBulkCopy method below
Dim clm As DataColumn
Dim dtP As DataTable = clsBatch.prpParametersTable
[code]....
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Sep 17, 2009
In a partial class, I declare a integer. Then, depending upon if a criteria is met, I set it's value to either 1 or 0. Then, I try and compare the set value, but instead of it being equal to 1 or 0, the code behind that I've stepped thru shows it ends up equaling &H0 or &H1. What does that mean? Why does it show a value of &H0 in the code behind when I debug instead of either a 0 or a 1???
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Nov 15, 2011
First my prog scan a specific path "C:music" which contain Mp3. Then it takes the MD5# of all mp3 and put it in a listbox1. Also on the formload it does open a ".txt" which also contain MD5# that goes into listbox2.Now this is what i am looking to have :When i click my button it compare each line of my listbox1 to listbox2. If , for exemple , the first line of listbox1 is already in the listbox2 then it delete the first line of listbox1 (listbox1.items.removeat(0)). And Do until listbox1.items.count = "0".
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Dec 14, 2010
I am trying to carry out a synchronisation of two databases: one on the server and the other on a local machine. So that even when they are not connected on the network, the local database can carry on accepting data but when the network is back on, the local database can update the server and the server can also update the local machine with data it accepted during the time when the network was off. by first comparing two tables in two databases and then if they are any differences the updating begins and i've since been stuck.
Private Sub btnCompareTables_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCompareTables.Click
'dont know which arguments to put when calling this function
'How do i tell the computer which databases to compare
Comparing()
[code]....
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Aug 30, 2009
I want to track changes of a document which sits in a DB table like :
document starts
document continues 1
document continues 2
document continues ...
document ends
(Each line is a record but if needed I can combine them all to one record)I have the document before changes in one table and the document after the change in another table.My problem is that if I just compare them by ID then I'll get many more changes than actually occured. Ex: If a line (/record) was added between record 2 and record 3, instead of tracking 1 change I will see that all the records from 3 and on have changed (because they will be pushed off by one record). Can be also something which knows to compare documents and I'll take the information out to document for comparison.
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May 20, 2009
Let me provide a little detail to explain what I'm trying to accomplish before I get into the nuts and bolts of the question. I've got two data sources - one is a SQL Server containing part numbers, descriptions, etc. The other is a CAD system that does not have a database in a traditional sense. What I'm trying to do is read out the bill of materials from the SQL Server and compare it to the CAD assembly drawing to ensure that the CAD system contains the same information as the SQL Server.
Getting the data from the SQL Server is fairly straight forward. I query the database and populate a datagrid. Done. Quick. Easy.Getting the data from the CAD system is a little more involved. I have to load the assembly drawing to get a listing of all the component parts and then load those individual drawings to pull the "Part Number" property from the drawing. This is a somewhat time consuming and slow process (unfortunately) since each of the files must actually be accessed. I load those properties into an array (I guess a list might be more efficient).
So now I have a datagrid and array with part numbers. I need to compare them and colorize the grid accordingly. The grid should remain transparent if the part exists in both, color the row yellow if it only exists in the grid, and add a row colored red if only in the array.
As best I can tell, this means looping through the array on each line of the grid. The thought process is this:Default the grid to yellow rows.Loop through the grid and loop through the array to compare. If a match is found, make the row transparent and delete the element from the array.After step 2 is completed, the array should only contain elements that are not found in the grid. Resize the array to remove the empty elements.Add the elements of the array to the grid and color those new rows red.The problems with this logic is that it seems expensive from a performance standpoint. Surely there is a better method? Also, if I modify the grid in some manner (like a resort) I have to go through the process again.
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Dec 8, 2010
i have 4 listbox and i named it
1. listbox40
2. listbox20
3. listbox5
[code]....
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Dec 5, 2011
I am wanting to be able to check to see if two images appear to be the same, within a certain threshold.These two images are the same to the eye, but one has slightly different colors. I have tried the following example:
[URL]
Unfortunately, it only seems to detect when the images are identical. How can I determine if the images are the same within a certain threshold, with VB.NET?
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Dec 19, 2010
I'm working on a Website in Web Developer 2010 where the content of a text box is checked against a list of values to find a match. There must be an exact match for the user to be allowed to proceed to the next step of the wizard.
Is there a shorter method to do this using the VB 'If' statement, other than specifying each condition individually?
I've tried something similar to the following, but for the amount of values it would be more practical if there was a shorter method.
If TextBox1.Text = "User1" Then
Label1.Text = "Ok, That username is valid. Click NEXT to continue"
LinkButton1.Enabled = True
[Code]....
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Nov 17, 2010
I am a c#/asp.net developer and I am having to work on a VB/asp.net. I have two variables
Dim originalDate as DateTime?
Dim newDate as DateTime?
Both nullable datetimes, originalDate is a nullable date I am getting from the database and newDate time is set in code, I need to compare them, they can either both have dates, neither have dates or one have and one not.
I have a bit of code as follows:
if origEndDate = origEndDate then
When both origEndDate and origEndDate are "nothing" this statement is false (well when I run it in the watch window it comes back as nothing)!I don't understand why this is the case because I was under the impression doing an "=" compares the two values and as they are the same surely it should be true? What syntax should I be using as in C# I can do the above as so:
if (origEndDate == origEndDate) { }
and it will come back as true.
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Dec 17, 2009
I'm creating <!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:1; mso-generic-font-family:roman; mso-font-format:other; mso-font-pitch:variable; mso-font-signature:0 0 0 0 0 0;} @font-face {font-
[code].....
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Oct 19, 2010
Here's my test code:
Dim testSingle As Single = 7.2
Dim testSingleF As Single = 7.2F
Dim testDouble As Double = 7.2
[code].....
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Nov 7, 2011
how can i compare both datagridview by using ID?
example 1 : ID 4016.. the data from client looks edited on filename "New Divide(beta)".. so, that ID will put into listbox..
example 2: ID 4039.. the data from client different from server on Notecharter "Y..JZ".. so, that ID will put into listbox..
so, how can i compare all data in row for each column from server datagridview? If the data in row are same with server, it will be ignore..
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Dec 2, 2009
I'm building a tool to display xml within a DataGridView and then to compare the rows of data.
I have read the xml correctly and displayed it within the DGV and have sorted the DGV by 3 of the columns.
I'm stuck with comparing the rows as i need to check several things:
[Code]...
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Jun 29, 2011
I want to write an alarm clock application that should display a certain message at a time set by the user.How to compare system date and time with the time set by users in a text box?
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Aug 16, 2010
I am fetching DataTime value of a SQL Database, LockDate. Dim diffDate As TimeSpan diffDate = DateTime.Now - LockDate minutes = Convert.ToInt32(diffDate.Minutes) hours = Convert.ToInt32(diffDate.Hours) Minutes value is showing incorrect values.
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Jul 11, 2011
I have a method that I want to check to make sure that both integers entered are both positive:
Public Function BothPositive(ByVal num1 As Integer, ByVal num2 As Integer) As Boolean
If (num1 And num2) > 0 Then
Return True
Else
Return False
End If
End Function
Now if I were to enter some numbers in
BothPositive(1,1) = True
BothPositive(1,2) = False
BothPositive(-10, 10) = True
Why is this? What is going on with the order of operations in the comparison statement or what is the "And" trying to compare? I don't see why this wouldn't work.
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May 30, 2009
I'm trying to compare a item i have to enter in a combo box with an item already in the box (duplicating items). I've use the contains function but i need something that is case sensitive. Here is what i have so far
[Code]...
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Jun 29, 2009
I have five listboxes that are populated from five different datasources basically I have connected to an MS Access database and I am running SQL queries effectively so the five listboxes are populated via datatables for example dtInterests, dtHobbies, dtMovies, DtTV and dtMusic my question is how would I compare the values that are being stored in each listbox I want the application to check each of the five listboxes and if the value is the same (in my case the valuemember is the customer id) then store the result somewhere (in a textbox)
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