Create A Button Which Basically Clears Entire Table In Your Database?
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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Oct 21, 2009
I'm in need of a "global" type timer that will allow me to basically run a clock the entire time someone is on my site, no matter what pages they go to. I've played around with the timer available for forms but I didn't see a way to make it continue to run after someone left that page.The effect I'm attempting to create is for a timer to start whenever someone hits my site, then every X minutes an event will trigger. This event should happen no matter where they are on the site. I've read a couple articles on timers but to be honest I'm fairly new to VB and I didn't know if I really needed to learn about 'threading' etc, to get a timer to work.
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Feb 23, 2010
do i clear and entire database through the program?
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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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Jul 15, 2009
Search Button To Access Entire Database? [code]...
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Feb 18, 2010
I need to know how to have a button on a tab to create another button on a second tab that contains a panel, with appropriate spacing, the same size as other buttons already present, and the name of the tab that generated this new button as the text on the newly created button. I.e. button1 on tab1 will create and place a new button on a panel in tab2 that already has a grid of buttons (maybe 3x10 buttons) which will be placed underneath a particular column with the text tab2 on the new button which can also refer back to that tab automatically. Hopefully we can get all this code under a single button event.
I also don't know how to have a button on tab1 that focuses on tab2, which sets the back button on tab2 with a reference to go back to tab1 in order to remain dynamic. I.e. clicking on tab1's button will go to tab2 and set the back button there with a link back to the tab it was referred from.
I'd also like to know if there's an easy way to create and destroy tabs with a specific layout. I.e. We have home tab, and comment tab. (This is for the sake of argument) On the comment tab1 (which contains all posted comments), we have a new comment button which creates a comment tab2 (or a dialog box for that matter) with appropriate textboxes, labels, and buttons in the right places which could also make use of the issues I posted above. So the new comment button on the comment tab1 will create either a new comment tab2 with appropriate objects, or a dialog box with the same, and then the submit button on this comment tab2 or box will create a new textfield/buttons on the panel containing the grid of buttons with the information provided in the fields from comment tab2/dialog box which is then destroyed.
I hope i haven't made the examples too confusing, but I can't figure out how to even make progress in these directions. Trying either fails completely, or semi-fails in getting these examples to function 100%.
I've already tried posting in other forums, but with no replies. Hopefully you all can help me figure this out.EDIT: This is not homework, I have scoured forums and google trying to find the answer to these problems. I'm hoping that because these are mainly VB based forums I can find some answers here.
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Apr 5, 2010
How can I refresh my form? I have a button that clears all data from a text file, and the text file is displayed in a secondary tab on my form. When the user views the second tab, they have the option to press the clear button, but I would like the form to refresh so they can see that the data has been cleared. How can I do this?
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Sep 17, 2009
I am working with a Vb.net 2005 application. On the application I have a Create table button which when clicked creates a table in Sql server with the code shown below;
Code: Private Sub BtnCrtTable_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnCrtTable.Click
[Code]...
This is really a pre-defined table and the data is already specified to be inserted to the table. However, my primarily task is to read a flat file which has the data and consider the first line as the column to be column names.
Therefore, initially I created an open dialogue to browse for the text file and store the path such as E:Datafile est.txt, in a TextBox1 visible at run time. Now the task is to change the above "create table" to read the txt file (column names are on the first line) and then create the table in the database.
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Aug 13, 2011
this code get the data from the sql where the name = @word which is the variablecontaining the word to search for my problem is i want to check all the table columns not only one column ? is it doable ?
Public Function Search(ByVal word As String) As DataTable
Dim Dt As New DataTable
Dim Adp As New SqlDataAdapter
[code].....
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May 4, 2010
store entire xml document using vb.net in a sql 2005 table
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Aug 12, 2009
I coded in it along time ago, back in middle of the 90's, but not heavily, so I don't remember that much, and never really worked with databases or file import/export. I'm trying to write code in to take my table or recordset thats active and export it to a XLS file.
[Code]...
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Apr 11, 2011
I am designing an clock-in/clock-out program as a learning exercise. So far I can type the name of an employee and add them to my timeclock database in a row called "EMPNAME". The issue I'm having now is that I need each of those employees in column of EMPNAME to appear in a combobox when I hit "GET LIST". Is there a simple way to do this using a SELECT statement for the commandtext? I've tried to google but cant find exactly what im looking for.
[Code]...
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Nov 2, 2009
Im trying to do an assignment at uni and it requires me to create a database and search the table?Ive created a table CustomerContact I want the user to input AccntRepNo and click a search button.ill use this number to search (query) my table dispaying all the records related to the AccntRepNo?Ive been reading alot about connections but i already have a database setup
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim repNo As String
repNo = AccntRepTextBox.Text
[code].....
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Feb 24, 2011
I am using SQLite ADO.NET Provider.
I want to create a database with 2 tables via code in vb.net .
Please provide code for the same.
I am using VS 2010 Winforms, working under XP SP3 Pro
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Mar 16, 2012
i am trying to create a table in a access 2007 database with the name stored in a variable wich the user inputs. For example, if the username entered by someone is "John", i want to create a table in the database also named "John". I have tryed this:
Dim mypath = Application.StartupPath & "\mydb.mdb"
Dim mypassword = ""
Di Cmd As OleDbCommand
[code].....
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Apr 16, 2012
Is it possible to Create a New table in the Database using any Action. The application I have designed is based on DateTimePicker. Is it possible to Create a table "March", "April" so on, when the user selects March or April for the first time. So that records of that particular month will be updated in that particular table.
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Aug 7, 2011
i have a access database and i want to create a new table using codes only.
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Jan 30, 2009
I have created several different colored 6 x 9 pixel rectangles (with a white border). I'm placing these rectangles on a large map, based on x y location and color code from a database. As I'm building the database, I occasionally run the program using the Debug in VB Express just to make sure everything is being place in the right location. I started getting an error when my rectangle count got up around 4500.
System.ArgumentException was unhandled
Message="Parameter is not valid."
Source="System.Drawing"
The release .exe works fine with no errors and a count of 6700 ... so far. As it is now it's taking near 60 seconds to place the 6700, and I'll eventually have 10,000 plus. (P4 3.20 GHz - 1 GB Ram). I'm placing each rectangle on the image as I read a row of data. Would it be beneficial to read the entire table into and array and then plot the rectangle?Would I be better off drawing each rectangle as needed or placing a my pre-drawn rectangle ?
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Apr 26, 2012
I have a column in the table with datatype xml.
how can i store the entire xml document in that column using vb.net?
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Mar 7, 2009
code for creating a class in vb.net for a database table that includes insert,delete,update function.
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Feb 12, 2012
I create a DataView that load a table from database.
Dim da As OleDb.OleDbDataAdapter
da = New OleDb.OleDbDataAdapter("select * from customers order by name", cnmain) ' I load complete table
[Code].....
�Thst's all I need? Because when I recover the first row of DataView filtered, it appears the first row initially loaded when I don't put filter.. �Do I need to refresh DataView to view te changes?
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Apr 9, 2012
so far i have this for my code:
Using myConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & databasePath & ";User Id=admin;Password=;")
[Code]......
This did not work but did when i just tried creating the table and not the fields.
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Sep 24, 2010
I want to do a task with a function controlling database with vb scripting. My form will include textbox, button and datagridview to view the database table manually without add from the microsoft access or other..how i want to make the table appear when i put a number into the textbox that refer to the number of row and column and then click the button to create the database table? Besides, how to rename it using textbox?
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Apr 13, 2009
The problem I have is that many times, the dataset that this control is bound to is empty. Therefore, the user continuously gets an error saying that one or more fields is missing. When I debug the code, I can see the code in the class loop through all of the radio button controls on the form. Since none of them match the field from the database, the code throws the error. I assume the code expects a match.
Should I modify the class to handle the case when there is a DBNull value? If so, what would be the best method? Or should I approach this situation in a completely different manner?
Public Class myGroupBox
Inherits GroupBox
Private _myTag As String
[Code]....
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Oct 22, 2009
I want to create a new MS Access database table using ADOX. On this page, is code in VB.NET, but obviously it's not working in C# (when I want to "convert" the code). I'll be grateful if someone converts it correctly.
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Feb 23, 2010
how to use a dynamic table for my MS SQL database? Im using vb.net 2008...any idea on how to do it?
e.g. - Output
ID LastName FirstName Address Order
001 Doe John Kentucky 10-10
002 Smith Jack Kansas 10-11
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Jan 1, 2012
Im working on a prog for my work. however, im stuck. I come to a spot where i need the prog to copy a sample table to an existing database. we can either simply copy the sample table, or as a last resort, create a new one from scratch.
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Sep 16, 2010
I have the code I am using below. On 3.5 framework Access 2003 database vb net 2008
I already have the database created but need to be able to add Tables and fields with the correct datatypes. So far it's not working but i don't know why or where the error is.
Private Sub MDIParent_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Try
[Code].....
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Feb 24, 2011
The below code is suppose to create a database and a table with a column "FirstName" which is assigned a value "James"
Imports System.Data.SQLite
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
But for some reason the app only creates a a database which has a size of 0 bytes. Why is it not working . I am using I am using SQLite ADO.NET Provider. , VS 2010, Winforms
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May 13, 2009
I'm trying to code a button which has a SELECT statement to get information from one table but I want the information displayed in a data grid view.From the data grid view, this data will be stored in a different table within the same database.Previously i had used a list box to display the information but i could not save it in the data base.[code]Is there any way you can display this on a data grid view like i did on the listbox?Im using a datagrid view textboxcolumn column.
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