I am trying to match between two datasets. Based on some predefined criteria the matched items are stored into a datatable. I am using the code below: [code]I am not sure whether there are more effective way to store the matched items in a new datatable since the method I used here requires three loops which is a lot of processing time.
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I am working on my project as I am trying to create a boolean which I want to check the matched string using with the html tags whether if the strings is matched then display the messageboxes.
Here's the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
'Address of URL
[code]....
What I am trying to do: I want to check the strings in the php page using with the htmltagsstrings and check if the strings is matched or not. If the strings is matched, display the messagebox that says "I am going to ban you", otherwise if it not matched then display the messagebox that says "Ok, let get some details".
What is going on with my code. To .NET and handling SQL connections. I am trying to catch an error where lets say someone puts in something that violates the rules of the field (i.e. they put data in a field that doesn't matched what is on the other table.) Please find teh code I ahve put on the save button to try to catch the error. Instead of popping a message box up the program just closes itself.
Private Sub Job_tableBindingNavigatorSaveItem_Click_2(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Job_tableBindingNavigatorSaveItem.Click
Try
[CODE]...
I'm having a hard time joining 2 datatables and have the joined datatable as result. First datatable (labels) holds data including a printerid. Second datatable (printers) holds printer references (id > unc). I would like to have as endresult (joined) a datatable with all data from the first datatable with the field (unc) of the second datatable. [Code]
View 3 RepliesI am wanting to check two TextBoxes to see if they both have the same value. If they don't, then to show an ErrorProvider and do something with some buttons based on the input. I have all the textboxes in a List like so:
vb
Private MyList As New List(Of Elegant.Ui.TextBox)
vb
[code].....
I can go through the list to check if they have a value or not but want to check the last two in the list to see if they contain the same value. This is what I am doing to check to see if they are empty or not.
vb
Private Sub CheckMe() bIsEmpty = False For Each itm As Elegant.Ui.TextBox In MyList If itm.TextLength = 0 Then
[code].....
I am attempting to have my program select a file, create DataTables and then perform some other functions. I want to be able to open another file and re-do the same steps.The problem I am having is that I add columns to my Datatables and when I try and to open another file while one is already open I get a message that a column of xyz is already added how do I properly "clear my datatable" or perhaps that isnt even the correct approach? Here is the code I have that Opens a File
HTML
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
[code]....
This was working at one time but after adding to my project I must have placed something in the wrong place inadvertantly or it has soemthing to do with adding columns,?
I have a sequence that reads the selected Excel-file and displays the first row of the columns in the Excel. (The first Excel row has the column names)
Dim cmd As OleDbCommand = New OleDbCommand("select * from [" & tableName & "$]", MyConnection)
Dim dr As System.Data.IDataReader
Dim dt As New System.Data.DataTable
dr = cmd.ExecuteReader
dt.Load(dr)
With the above code I can read the the first rows of the Excel table and choose the names of the columns I like to keep. (By populating the first row to my ComboBoxes)
So, at the moment my DataTable dt has all the table header names but on the first row. And as the header names it has F1, F2, F3, ... F13.
How can I make my new DataTable dt2 take the first row of dt and make it the column names row? How can I choose which columns do I want to transfer from dt to dt2 ???
I have tried the following (Doesn't work):
Dim dt2 As System.Data.DataTable
dt2 = dt.Copy.Columns("F1", "F2", "F3", "F4")
DataGridView1.DataSource = dt2
The DataGridView Control only accepts one data source, but there are ways to brake through, ways that I'm not able to find.
View 2 Repliesi have a project where I need to concatenate strings from 4 different tables based on a sequence of numbers. I created a 5th table that holds the number sequence and dictates in what order the strings get appended. I have created primary keys on the tables, but 3 of the tables are composite primary keys. I have written up to where I start referencing the primary keys, but am not sure how I should reference the keys on the actual tables. I saw some examples for creating composite keys from an array which I did. The main questions are did I declare the composite keys correctly, am I creating the composite key reference from the array correctly, and how should I reference it all to append to the stringbuilder variable.
[Code]...
And yes I kn ow it would be easier if I used Strongly Typed Dataset, but this is a clr sql stored procedure and have not found any examples on how to add a .XSD to a stored procedure. The add item option is not available, besides a bunch of typing
I am using memorystream to get and store images into sqlserver 2005 table image field. This process is working and I am able to display image in picture box. I need to be able to store PDF files into the same field and be able to display in a picture box.
View 2 RepliesI have the following code, which reads data from xml file and displays it in the datagridview. It all works fine:
[Code]...
Instead of showing read data in datagridview, i'd want to read the data from xml file into one dimensional array: X(Impedances) Or is there a way to read value from this datatable into string variable without getting data from datagridview? The point is: i'd want to scan through all "Impedance" values (which are read from xml file) and compare with value y to catch the nearest value to y. How to do that?
Heres my issue, I am retrieving data from xml and populating a DataSet with the results into multiple DataTables but i have an issue where an item is repeated in my input data and it is causing it to exception because of the constraints imposed between these tables. how can i determine if a row exists prior to adding the DataRow and thus not include it in my DataTable?
View 1 RepliesI am trying to create a LINQ query statement that retrieve intersecting data from 3 datatables (dt, dt1, dt2). My first attempt to do so with the following LINQ query statement was successful: [code] However in my design, I would need the LINQ query statement to be dynamically generated, because I want a user to be able to retrieve intersecting data entries from VARIABLE number of datatables. In this case, the first option is not as good as the "INTERSECT" query operator, with which I can just easily connect each SQL query statement with a "INTERSECT" operator. The problem is that my second attempt using the "intersect" operator fails, and after many trials and errors I still can't get it to work. [code]
View 5 RepliesI've got a couple of drop down lists for languages. I bind them to a language list that comes from a query. Then the fields are also bound to the row in the DB they relate to. I have several panels with the language drop down - each "tied" to a different table in my DB. When I call up different records on the same panel the drop downs immediately "set to the position" of that rows language in the list. But when I call up another panel - tied to another database table - I see that language in the drop down.
[Code]...
I have a specialized string dictionary of (string, string) (_RulesAndTheirDescriptions) that contains the name (key) and description (value) of methods in a given class. I currently do the following query to search for a match on the key or value and then bind that to a grid.
[Code]...
Does anyone have a list of OleDBTypes and how they match up with MS Access and SQL Server Data types. I would like this to be able to better write code for my parameter collections. Plus when looking at all the options availible with intellisense when programming in vb2008 v.s. SQL datatypes, there are some not so obvious choices.Here is the list I get from VB2008 using Intellisense:
OleDb.OleDbType.BigInt
OleDb.OleDbType.Binary
OleDb.OleDbType.Boolean
[code]....
I have a SQL 2008 Express DB and am trying to run an insert query. But every time I run the query I get the UnresolvalbeObjectException.
Dim db = Simple.Data.Database.OpenConnection("Server=localhostSQLExpress,Database=Foo;Trusted_Connection=True;")
Dim item as new with {.Name = "SMITH",
[code].....
I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
When I add a .dll file as a reference in C# application it shows an error:A reference to the ".dll" could not be added.Please make sure that the file is accessible and that it is a valid assembly or COM component.
View 2 RepliesI am working on my project as I am trying to create a boolean which I want to check the matched string using with the html tags whether if the strings is matched then display the messageboxes.
Here's the code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
[Code]....
I have a DataTable "dt1" that has thousands of rows.
Columns are:
- Type_And_Model
- Val_1
- Val_2
- Val_3
- Val_4
There are only about 30 different "Type_And_Model"-types.How can I insert into a new DataTable (dt2) only distinct "Type_And_ Model" types with the sum of their specific values and total appearance number?
dt1 - DataTable with thousands of rows
Type1 2 2 5 5
Type1 4 2 7 5
Type2 2 2 5 8
Type1 2 2 9 5
Type3 3 2 5 5
Type1 6 2 5 7
Type3 2 7 5 9
Type1 8 2 9 5
.....
INTO =>
dt2 -DataTable with disinct types and their sum values + appearance numbers.
Type1 22 10 35 27 5
Type2 2 2 5 8 1
Type3 5 9 10 14 2
i have tese two arrays
if i find filter_ids in stroutids i want to remove those from stroutids array
Dim strOutIDs() As String = Split(OutIDs, ",")
Dim Filter_Ids() As String = Split(Me.ucIo_Entry.Filterd_RowIds, ",")
[Code]...
I am new to VB.net. I want to read and input file and store that data to an SQL Server database. Do you have an sample code that do such?
View 1 RepliesI have a modbus TCP device that I have managed to connected to through my VB source code.
I want to poll (continueously read) data from certain registers of the device, and store the polled data in a file (text,csv, excel).
I have an application that uses Dataset.WriteXML to create a small backup before data is syncronized to a data store (less than a meg).This application has worked well for 5 years now, and all of a sudden with the installation of XML 6.0 SP2 the XML document is not working correctly.I have multiple tables within a Dataset (Company, Contact, Notes, etc...)When WriteXML is called, the first table should be Company, however, the first table is being named Contact with the Company Data in it. The Notes table is being called Contact and so forth. In other words it's not giving the correct names to the tables in the XML File.This appears to be a bug, which is causing great distress on all the companies who have been using this program.
View 3 RepliesThe user will click the book name in the combo box.
Note: The combo box is separate from datagridview . It is not part of datagridview columns.
Then the datagridview for Issuing books i.e. with the columns bid,bname,aname,data of issue,date of return should be displayed.
The row that will be displayed in datagridview is such that the bookname selected by user in the combo box should match with bname row .
On the same datagridview there will be button with name "Issue" so once it is clicked then this whole data of datagridview should get stored in the database table name "Issue" and get deleted from the databse table name "MBA"
1. How do I exclude a string that is matched?
I have something like this:
You answered question 1 correctly. You have been awarded
<a href="url"> 1 point</a> .
You answered question 2 correctly. You have been awarded
<a href="url"> 1 point</a> .
You answered question 3 correctly. You have been awarded
<a href="url"> 1 point</a> .
You answered all 3 questions correctly! You have been awarded a total of
<a href="url"> 3 points</a> .
So basically I want to filter out all those in bold, it should look like this when printed to a textbox:
You answered question 1 correctly. You have been awarded 1 point.
You answered question 2 correctly. You have been awarded 1 point .
You answered question 3 correctly. You have been awarded 1 point.
You answered all 3 questions correctly! You have been awarded a total of 3 points.
2. How do I get a value of HTML span element? (I'm not sure how to phrase this but I think you will get it if I show a example..)
It goes something like this...
<span class="quiz1">Question 1:</span>
<span id="q1">Question Here </span>
I want text in bold to be displayed in a label. Do I use getAttributeByID here? How do I use it in VB.net?
I have loaded a picture in PICTUREBOX1 by this command Me.PictureBox1.Image = Drawing.Image.FromFile("D:C2007BITMAPSpict.jpg")
How to store this picture SQL server 2005 table1's IMAGE column?
I do not want to store image path in table. I want to store picture in image column in any format.
Reason: If I run my project to some other computer that has not images'path stored in database.Then images will be displayed by image field of database.
I want to create the matched strings in vb.net and set them as private, so no one could read them when using ollydby. Here's the
Dim a As string = "ˆ"
Dim b As string = "%"
Dim c As string = "ÿ"
[code].....
I have an Object(Class) that consists of a few List Of(T)'s where T is other classes that can be defined by reading lines of a CSV file.I could (I imagine) do the same thing with XML.My question is when does one choose between the two.Are there cases where one is preferred over the other for data storage?
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