Generating A Data Table From INSIDE?
Feb 6, 2009
Does anyone know a way for a datatable to be generated INSIDE the code of VB? It would be a "backup" datatable generation subroutine to be run in case the original datatable got damaged somehow (bad hard drive sectors, virus, whatever). It would need to be able to generate a "blank" datatable that could be filled in while running the program, instead of having to do it from an outside source (like Access).An example would be an "inventory" datatable (X product, Store Code, Manufacturer Code, Cost, Price).
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Dec 28, 2011
I need to scrap data from a website where data is Inside table.
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Jun 4, 2011
check if the entered data is in the same row inside the table using .net?
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Feb 8, 2011
I need to get a list of distinct names inside the data table and the sum of values for each one. I know some basic stuff about linq, but i don't know how to put the distinct and the sums together.
The SQL Query:
SQL
SELECT DISTINCT username,
[Sum1] = SUM(day1),
[Sum2] = SUM(day2)
[Code].....
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Dec 6, 2009
creating unique IDs for each row in a table, to avoid duplicates when inserting the data to a server. The table looks like this:
+--------------+----------+------+-------------+
| brikkenummer | tid | post | anvendt_tid |
+--------------+----------+------+-------------+
| 3086360 | 09:43:02 | 98 | 09:43:02 |
[code]....
"Brikkenummer" is the number of a device that each person carries with him/her, and "tid" is the time the runner has passed a specific post. The post he/her has passed is described in the column "post".Out of these three columns, is it possible to generate some kind of unique ID? The ID that is generated have to be the same if a row is displayed twice or more, to avoid duplicate entries.
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Apr 22, 2010
i was wondering if any one could help me on how to generate the left side of truth table showing all possible combinations in VB. and if possible how to display in Excel(2003)?
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Apr 24, 2009
I'm writing a scheduling program that queries a MySQL database for today's appointments and uses a Table Layout Panel with employees on the top and times on the left to display the schedule. I am trying to add another table ontop of that table for each appointment and set the rowspan of that dynamic table to occupy the time slot of that appointment from start to finish.ll the appointments appear in the dynamic table and each dynamic table appears in the appropriate starting positions in the main table. When you are designing GUI's and put a Table within a table, you get a RowSpan and ColumnSpan option for that inner table. The problem I'm having is the dynamic tables are not giving me a RowSpan option, which I believe is because it was created using code and doesn't know that it's inside another table.Here is part of the code... This code is inside loops for each appointment of each employee
sqlCustomer = MyReader.GetValue(0).ToString()
sqlCompany = MyReader.GetValue(1).ToString()
sqlProblem = MyReader.GetValue(2).ToString()
[code].....
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Mar 30, 2010
im new to coding (started coding last month) so im a little stuck on how to do this, im making some emulation programs to learn coding with, and a part of it is to point the app to a .iso/.bin file and scan the data inside of the iso/bin to check if a file exists.[code]My issue is i cant find any class examples, or any information etc on how to code it so my application can see the data inside of the iso/bin instead of just see'ing the iso/bin file, so that i can then check the data inside the iso to see if the file exists etc.Im a novice still at coding so making a new class myself to look inside the iso/bin is to complex for me.
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Nov 17, 2010
I am trying to bind a data table to display column "occupancy" inside of combo box "Wall1occ" I must admit I am very out of practice with my VB coding. Here is my code:
[Code]...
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May 21, 2012
Dim obj_DataTable As New System.Data.DataTable("Category")
Dim obj_DataSet As New DataSet()
'Declaring the array of DataColum to hold the Primary Key Columns
[code].....
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Jul 6, 2011
I am importing data from an excel file, and it is stored in a dataset. The data is then filtered with a binding source, and that data is outputted into a datagridview. The filtered data in the datagridview contains data for 2 identification numbers. I want to graph each ID number in a chart on their own bar, in either a stacked bar graph, or a double bar graph.
I am having trouble assigning each series to an ID number: I have tried using multiple binding sources, but each seems to override the previous giving too much/too little data. I have tried using multiple datagridviews, however I cannot assign more than one datagridview as the datasource for the chart. The code I have pasted below outputs a double bar graph, however both bars graph the same ID number.
Private Sub dataButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dataButton.Click
Try
Dim cnRange As String = "provider=Microsoft.Jet.OLEDB.4.0; " & _
"data source='" & strFileName & "';" & _
"Extended Properties=""Excel 8.0; IMEX=1; HDR=No;"""
'moApp.Visible = True
[Code] .....
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Apr 15, 2012
i am working on an application titled Asset Management for my b.tech major project.The company under which i am pursuing it only asked me to include sumitting asset information,,retrieving information and generating reports and editing of data with admin login.I made all that but my college faculty is not impressed with it.I will be if somebody can tell me what features do i add to it and how do i make it more interesting.
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Apr 4, 2011
I am using vb 2005 and I am trying to use a radiobutton to call .dbf (or .xml...I have both) file which contains only 2 values. The Value I would like to obtain is in A2. This cell contains a value that is about 8 to 10 digits past the decimal (I don't see that as an issue as of yet).
Below is my code that I am trying to implement.
Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged
Dim myValue As String
Dim excelTable As New DataTable
[Code] .....
I get an error regarding system arguments on this line right here
"If RadioButton1_CheckedChanged(excelTable, ------->"D:\FILENAME.dbf", "SHEETNAME"<-------) Then"
How to reset the unselected textbox to zero when another radiobutton is selected.
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Jun 20, 2012
Im am creating an email using MailMessage and would like to embed a dynamically populated table. I've set a MailMessage property to IsBodyHtml so I've already been able to insert HTML encoded text into the body of the email. Using that I could easily create the top and bottom of the table, but creating the rows seems like a StringBuilder nightmare.
The table will have 6 columns and a variable number of rows that would be populated from a collection. The requestor would prefer NOT to send the data as an attachment.
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Jul 22, 2009
VS 2008, SQL Server 2008:I have a formview that holds data about a test.Each test can have many people assigned to run the test.I have 1 table to hold JobNumber (Unique) with all associated data I have a 2nd table to hold JobNumber And AssignedToID to have records for each person assigned to the Job.Right now I have it set up so the user will choose as many AssignedToIDs as they want and it populates a list box. The list box is a bound control. Can I populate the 2nd table with the contents of the list box?On the update of the formview I could loop through the contents of the list box and update the data 1 by 1 but it will be a pain when users remove assignees.
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Oct 26, 2011
I've got a database like this (Below)
What kind of SQL Query do I need to show all those tables combined inside one table?
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Oct 6, 2011
I am presently doing a Word Automation using VB.In my word Header i have inserted a Table for various fields
[code],...
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Mar 12, 2012
In .NET development and don't really know what to use to do some specific actions. I'm also a newbie in AJAX/JavaScript development. I'm using the mvc3.
I'll have to implement a few things :
-rating systems with 5 stars
-classification of items that are listed inside a table. (e.g. : I want all the people that are older than 20)
-searching inside the whole database (e.g. : I want everything that contains the word "tennis", so, it should give me a table with all the people tha play tennis, than a table with the clubs were people play tennis,...).
-a kind of intellisense (e.g. I add a new person inside the database, and for the field "club", I just want to write the first lettes of the club, and then, I would just have to click on the club to fullfil the field).
I've found plenty of websites that give me a library with some of the things that I need. But, I don't know which one I should choose.
I do need something that is as simple as possible, with examples for razor (I'm using VB.net, but it doesn't matter if it's in c#). If possible, having nothing to install could be great (I know that the Jquery scripts that are installed by default are already great).
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Feb 13, 2012
What I'm trying to do is click an html link inside of a html table via code in vb.net using a web-browser control. The link I want to click can be anywhere in the first column of the table so I need to cross reference with another column in the table to make sure I have the re way I'm going about this is to loop through the html elements till I find the table I want (multiple tables on the page) then dump that table to an array. Then loop through the page again get to the table I want and then start comparing the link and another column in the now array. I need to check to make sure that the url of the link contains a work and that another column in the table contains a specific or lower numerical value. Basically where I'm stuck is while dealing with the html element "Table" wanting to identify and interact with another html element inside it.
'Flag to say dump to array
Dim RecordFiles As Boolean = False
'The last two headers in the table are blank so need to skip them
Dim FirstBlank As Boolean = False
Dim SecondBlank As Boolean = False
[Code] .....
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Jan 20, 2011
I have three table and I want to put the three table's data in one variable and from that variable i will produce the datatable and then want to write the data in CSV file.I am Following this step..
Void
GetDetails()
DataClasses1DataContext
[code].....
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Dec 26, 2010
I have a login form that consists of 2 text boxes: txtUser, txtPass. Now these are not bound to any data table & I don't what them to be bound. When a new user enters his user name & password, I want to add these on a data table that has two columns: User, Pass. Data table information: Data Source = Login.accdb, Data table = LoginTable, Connection = LoginCn. I use visual basic 2010. So how do I do this?
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Apr 23, 2009
I have this code to edit the datarow of my table adapter but t doesnt update the table. I think i have a missing code that's why but i cant figured it out. by the way im using vb2008 and SQL as my database. [code]
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Jul 8, 2009
I currently have this working already for one of my combo box's, but when i try to use the same code i get this error ''There is no row at position 6.'' . The are 2 fields in the table asset_type_id, asset_type_name', im trying to dispaly the values in a combo box for the field 'asset_type_name.
the code for ' Friend Sub RetrieveCustomerInformation2()' works but the other friend sub throws the error.
Imports System.Data.SqlClient
Imports System.Data
Imports System
Imports System.Data.OleDb
[Code]...
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May 23, 2010
While am using the below code it was throwing an exception update unable to find table mapping [Customer] or data table customer.
[code]...
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Jul 7, 2011
I have 1 access database with 3 tables How do I make the combobox get data from one table and input it to another table?ex.I have a table with all my Carriers and another table with jobs that are assigned to Carriers?
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Jun 7, 2011
i have a combobox on the form and a datagrid viewer .no i want to display the table which selected on combo box..
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Feb 23, 2011
I have a form that fills a table adapter with this:
Me.Scratchpad3TableAdapter.Fill(Me.MDRDataSet.scra tchpad3
and what I'd like to do is when users edit something on this form that they post the changes to a table called exceptionsedit which is not part of that dataset. What I don't know how to do is to how to insert those edits to the exceptionsedit table.
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Mar 20, 2012
i need to copy all the rows with data from a existing table to other existing table through button click
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May 11, 2010
I am using the following code to insert the Data inside the XML . Here the class Form3 is Add New User Form.
It worked for the first time . i.e the record was successfully inserted in XML file. but again when i tried to Create New User and Insert into XML file . it simply replaced the first record. i.e each time it just replace the previous record with current record inserted in XML file.
CODE:
Public Class Form3 Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
[Code].....
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Feb 17, 2011
I am using Visual Studio 2008 and Sql Server 2005
I want to update a table using values from other table I have written a query but it is giving error
"Cannot insert the value NULL into column 'Quantity', table 'Stationarymgmt.dbo.Item_Master'; column does not allow nulls. UPDATE fails."
temp table has following columns
Item_Code,
Quantity,
[Code]....
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