Iterate Through An Entire Data Table, Using An Index And By Clicking A Button To Move To Next Record?
Jun 4, 2011
how can i manually iterate through an entire datatable record by record, but only moving to next record after clicking a button. am using vb 2008 express and below is the code i wrote: Private Sub STARTButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles STARTButton.Click
Dim RealName As String
Dim UserName As String
Dim PASSWORD As String
[code].....
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Apr 4, 2009
Instead of connecting to database,I create datacolumns of two data tables.assign foregin key constraints and primary keys to the columns.Add these datatables to dataset and create relationship between them.Now by using RowFilter property,how to display the child table in a datagrid by clicking on parent record in another datagrid?Accept and Award Points Accept as Solution
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Nov 15, 2011
I am using Visual Studio 2010..I have multiple forms and when I hit close button(red X, top-right) from any form, i want the project to close entirely.Now when I do this, this does not happen by default. I always have to click on the 'stop' button in VS for it to close.
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Dec 18, 2009
i don't now where to but my question so if this is the wroung section i am sorry
i am designing a web site with a database using visual studio
and the code i use is visual basic
i use this code to insert in to tabel temp1
MySqlCommand.CommandType = CommandType.Text
MySqlCommand.CommandText =
"Insert into temp1 values(@id_card,@city,@name)"
[Code].....
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May 17, 2012
Is there any way to create a button which basically clears a entire table in your database?
I was hoping to have 2 buttons, 1 to empty a table 1 to fill the same table again.The idea is to store a year long values, and at the end of the year delete all of those with a button.The other button i want to use to fill the same table again.Starting from 1st day of the year untill the last day of the year.
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Jan 6, 2012
how do i copy and move the entier contents of a directory to another ussing VB.net then also delete the files from there original directory?
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Dec 3, 2011
I use This Code To Save Data in Table First I delete record Then Insert record
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Feb 11, 2010
I am building an app. that needs some input from the user, the user will have to move a (selected textbox) by clicking a button. The TextBox will have to move 20 points down or up from corent location by clicking a button.
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Aug 19, 2009
i connected a MS Access Database using data source in Visual Studio 2008. im using the following code.
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
#End Region
[Code]....
when i click on load its working and showing the first record from the database. when im clicking at btnNext its not generating any error or warning in visual stduio 2008 and the text fields are not showing the next record?
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Apr 25, 2009
I have a VB.NET project where I am able to iterate through the keys and values collections of a dictionary object using an index:
MyDictionary.Keys(idx)
MyDictionary.Values(idx)
When this code is taken from the test project and placed into the real project I get the following error:
'System.Collections.Generic.Dictionary(Of Double, String).KeyCollection' cannot be indexed because it has no default property.[code]...
In the line in sub search that says "dtf.Keys(idx) = 0" place your cursor after the right parenthesis and backspace you should get a tooltip that says, "<Extension> ElementAtOrDefault(index as Integer) as Double - index: the zero based element of the index to retrieve.
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Jan 20, 2010
I need the code to be able to send info from a textbox to an access database. I understand I have to use Ado but I cant put the code together. so lets say my textboxes are called textbox1 & textbox2 my database is located and called c:htw.mdb, my table is called table1 and the 2 columns are named test1 & test2. I want to be able to send the data to access when clicking on a button?
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Dec 4, 2009
I am trying to archive specific rows of data in a table to another table, then delete the data from the original table.I am using Visual Studio 2008 in Visual Basic. My database is written in SQLServer 2008 Express. Example: IF column 'ID' has a row value of 'SomeValue', I want to move that row to an archive table and delete the row from the original table. Here is the code I have been working with:
Dim instance1 As DataTable1
Dim instance2 As DataTable2
Dim row As DataSet.Table1Row[code]......
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Aug 18, 2011
I am leaning VB and have created a basic inventory app for work that consist of 4 tables, CurrentInventory, Surplus, Staff and Category. Each of these tables have a corresponding form. My question is with the CurrentInventory and Surplus form/tables. I want a button on the CurrentInventory Form that when clicked the current record would be transferred to the Surplus table and deleted from the CurrentInventory table.I am assuming that I could somehow use the INSERT command to copy the current record to the surplus table but I am not sure how to accomplish this.
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Feb 3, 2011
<p style="margin:0cm 0cm 0pt"><span style="font-family:Calibri; font-size:small">Im Anhang finden Sie ein VB-Programm zur Reproduzierbarkeit des Fehlers „Data Table Internal Index Is Corrupted 5".</span></p><p style="margin:0cm 0cm 0pt"><span style="font-family:Calibri; font-size:small">Folgende Schritte sind durchzuführen:</span></p><p style="margin:0cm 0cm 0pt"><span style="font-family:Calibri; font-size:small">Entzippen in ein geeignetes Verzeichnis</span></p><p style="margin:0cm 0cm 0pt"><span style="font-
[code]....
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Jan 17, 2011
Has anybody ran into this error before?
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Jan 5, 2012
i am using vb, i have a aspx page which contain a textbox (txtStudentName) and a drop box (dropdownlistGroupName) and a save button
student table
StudentID StudentName GroupID
1 ABC 1
[code]....
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Feb 18, 2011
I am an old VB2 programmer and in the process of moving up. In VB2 I could obtain a data row via and index on an access table. I can not find an example on how to do this. I can retrieve a single row using a query, but an index would be faster. I know in Oracle use can use a hirt to direct the query to use the index.Here is what I was during in VB2 (Sample) with no hint.
Set Stock_Tbl = "DataBaseName".openTable(Stock_Tbl_Name)
Stock_Tbl.Index="Symbol_Idx"
Stock.Tbl.Seek="MSFT"
[code]....
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Oct 27, 2009
I am handling many of the BindingNavigator tasks (MoveFirst, MoveNext, etc.)in code to ensure that I always ask the User to save his changes.
The one area I am have a problem is PositionItem. I would like to sense that the User has changed the Record Number in the BindingNavigatorPositionItem, handle my record Update, and move to the Record Number the User entered I have looked all over and have not found any way to do this.
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Jul 11, 2011
When the user clicks the Exit button it closes the forms and if there was an open file it asks the user is they would like to save. But after the application closes there is still memory being held in Processes by the application. However, when pressing the [X] in the top of the form the application closes again but in this instance it is not held in Processes. How do I write the close for Exit to take into account how the [X] works and close the application cleanly?
Friend Sub CloseAllForms()
CloseHelpForm(True)
CloseDiagForm()[code].....
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May 9, 2012
saving data into another form in my program. so when this code saves data into desireddb table, i would like to delete immediately from this db table once it saves data into the desired db table.
Private
Sub Button1_Click(ByVal sender
As System.Object, ByVal e
As System.EventArgs) Handles Button1.Click
[code]....
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Aug 7, 2010
SQL Server has a Data Type of "Float". Visual Studio has a Data Type of "Decimal". In other words, if I have a variable in a VB.Net app that is defined as a "Decimal" ...can I move that value into a SQL Server Data Table column defined as a "Float"?
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Mar 6, 2012
I have a listbox that is sorted and the data table that is bound to it is also sorted. I am trying to add a Record to this data table and ensure that it is always at the end of the list. Is there a way to do this using specific character combination?
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Jun 16, 2010
I am trying to add a new record to a Visual FoxPro data table using an ADO dataset with no luck. The code runs fine with no exceptions but when I check the dbf after the fact there is no new record. The mDataPath variable shown in the code snippet is the path to the .dbc file for the entire database. A note about the For loop at the bottom; I am adding the body of incoming emails to this MEMO field so thought I needed to break the addition of this string into 256 character Chunks.
cnn1.Open("Driver={Microsoft Visual FoxPro Driver};" & _
"SourceType=DBC;" & _
"SourceDB=" & mDataPath & ";Exclusive=No")
[code].....
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May 9, 2012
Got to say that i was struggling this code for saving data into another form in my program. so when this code saves data into desired db table, i would like to delete immediately from this db table once it saves data into the desired db table.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using conn As New System.Data.SqlClient.SqlConnection("Data Source=MUSTAFAMUSTAFA;Initial Catalog=employment;User ID=sa;Password=123")
[Code]....
So form gets retreived data from another form then save it to another db table then, i want to delete what is appearing in the current form. i mean, the above code once it saves data, it then has to delete immediately.
For example, once i click confirm then saves it, then confirm button has to also delete it from this db table because i already moved the data.
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Mar 23, 2010
I am quite new to programming and I want to be able to check whether the user logged on to the system is in a table or not. I am not quite sure how to iterate through a table.
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Nov 10, 2011
I am trying to make a user control that can me moved around the form with the mouse.The control will look similar to this ...This is an example of my code for moving the control around.
Private Sub JobBox_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles JobBox.MouseDown
x = e.X
[code].....
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Dec 18, 2009
I'm using visual basic 2008 and I'm trying to find out how I can move the form in runtime by clicking an area other than my caption/title bar? I've searched everywhere and couldn't find an answer.
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Sep 30, 2009
I am working on an application for Point of Sale system in .Net 2008,vb with MsAccess as database and now i am on the final part of this application which is inventory module. Where in that module i have created Stock table and I have two tables related to stock.
[Code]...
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Jun 20, 2009
I've got the following VERY basic code
[Code]....
this does indeed update my label with the first item in the Author field in my database, but I can't for the life of my figure out how to go the next record when I click a button. Could anyone give me a quick rundown, or a good tutorial on this, I'd rather not use the built in wizards.
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Jun 18, 2012
I am working on desktop application. I had created number of dynamic textbox and label and I want to save that data on clicking the save button.
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