VS 2008 Create A Single Row In A Data Table?
Apr 20, 2009
I have a data table.
And I only want to have a single row in this table. I then write the changes to an xml file. The user will edit the row in this table save the values in the settings.properties. And then when ready write the changes to the config file.
However, I am thinking is there a better way. As I have to keep removing the row that was currently added. Then create a new one.
' Add the data to the datatable and write the changes to the config.xml file
Private Sub btnWriteConfig_Click(ByVal sender As Object, ByVal e As EventArgs)
' Only create a single row. All changes must be made to this row only.
[Code].....
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Apr 30, 2012
I'm writing an app to print a list of beers that are currently on tap at the restaurant where I work part-time. We have 29 taps and dozens of different beers. I have 2 tables in a database (one with the "master list" of all the beers and an "on tap" one with one entry per tap). Each database entry includes fields for name, brewer, location, style and ABV. So far I've made a GUI with 29 combo boxes (one for each tap) and 2 buttons (one that opens a dialog box to modify the "master list" and one to print the list). The idea was to make it as simple as possible since the people who use it aren't great with computers and are often in a hurry.
Each combo box drops down the whole master list of beers and I'd like for the selected beer to be written to the corresponding index in the "on tap" table. My idea is to then extract the data from the "on tap" table and print it. I haven't done any coding yet, really, just drag-and-drop.It's frustrating since I know how I'd do the back end in C or C++, but not in VB. The reverse is true for the GUI.
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Aug 3, 2009
I have created 4 table and data set. I would like to print information from 3 table on a single report. I already created a rdl. report form.
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Feb 13, 2012
how to execute this SQL Statement
Scenario:
Given Tables T_Data, T_AllDesc, T_System1, T_System2
Given Fields:
T_Data= f_id, f_Desc, f_CreationDate, f_CreationTime, f_System1, f_System2
[Code].....
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Jan 5, 2011
I am using this code to insert into a single table.How to use the code to insert the textbox text to multiple tables of same column on single button click event in VB.net?
Imports System.Data.SqlClient
Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
Dim con As New SqlConnection
[code]....
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Feb 2, 2012
What type of collection should I use to store data from a table (in a book) that has multi-dimensional Keys to get a single value result?
What is the best way to store and retrieve these values in a program?
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Jul 5, 2011
How can i do a workaround for this? I two databases(.sdf). Database A has table A1 Database B has table A2 Table A1 is an exact duplicate of A2 minus 3 columns My dataset(.xsd) is based off of tableA2 in Database B. I can fill all my tableadapters in Database A and all info in table A1 using the dataset. My problem lies when I do TableAdapter.Update() for Table A1(Since the dataset has the 3 missing fields) it tries to update table A1 with info that isn't there and I get an error. How can I update table A1 and ignore the 3 missing columns using the single dataset? Or is TableAdapter.Update() designed to Update the Database with all columns found in the dataset ?
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Oct 29, 2009
i have developed some applications using VB2008 but my biggest problem so far is how to create a single setup.exe file instead of having 3 files.. My applications do not depend on anything from my computer.. just using .NET FRAMEWORK 3.5 and objects from windows. Is there a program somewere to gather all three files into one?
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Dec 8, 2010
i want to create a table that include a current year data and as well as previous data to be compare. here is the example of the table that i want to create: but i want to compare one of the annual data with the previous year. as example i want to compare between the data of current AR of 2007 with the current AR for 2006, Current AR of 2006 with current AR for 2005 and go on~, but i have no idea how to do it.
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Nov 13, 2009
I have a project which contains a large number of lookup tables, and I have all of these lookup tables represented in a single typed DataSet, which contains TableAdapters for each lookup. I've designed an editor for these lookup tables, which should allow editing of one of these at a time. My front-end is written in VB and WinForms, the back-end is a SOAP web service; I can successfully pass the changes to the DataSet back to the web service, but can't find a way to use a TableAdapter to update the single table that has been changed.
What I'm trying to do is instantiate the appropriate TableAdapter for the updated DataTable by sending the name of the table back to the web service along with the DataSet, then referring to the TableAdapter with a dynamic name. The normal way to instantiate a TableAdapter is this:
Dim ta As New dsLookupsTableAdapters.tlkpMyTableTableAdapter
What I'd like to do is this, but of course it doesn't work:
strTableName = "tlkpMyTable"
Dim ta As New dsLookupsTableAdapters(strTableName & "TableAdapter")
Is there any way to achieve this, or am I taking the wrong approach altogether? My other alternative is to write separate code for each table, which I'd prefer to avoid!
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Sep 18, 2009
I'm trying to create table in my database, that would have name like i type in Textbox and than i have to click the button With code like this :
sqlCmd.CommandText = "CREATE TABLE NAME = '" & TextBox1.Text & "' (First_Name char(50))"
I'm getting erorr : Incorect syntax near "name that i type"
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Aug 15, 2011
how to create data grid table and how to link it to MS SQL Server 2005 Express database
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Apr 6, 2011
I am creating a project in VB.NET in which one of the reports require that the name of employees should be displayed as column names and whatever work they have done for a stated period should appear in rows below that particular column.Now as it is clear, the columns will have to be added at runtime. Am using an ODBC Data source to populate the grid. Also since a loop will have to be done to find out the work done by employees individually, so the number of rows under one column might be less or more than the rows in the next column.Is there a way to create an empty data table and then update its contents based on columns and not add data based on addition of new rows.
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Oct 14, 2009
I am create a mysql table with TIME Data type fields. Like FROMTIME and TOTIME. And some insert data to that table. And that data is view through DataGridView. I can show all data in DATAGRIDVIEW. But, Have a error data, when current row click time ( Error data is : DataGridViewTextCell {ColumnIndex=0,RowIndex=0}.
How to store TIME types to Variables or Control;
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Feb 9, 2012
I am wanting to pull data out a select table and wanting to use it locally as Read Only data I am stuck on how to write the data to the local Temporary table[code]...
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May 7, 2010
I am trying to use the DGV to view various properties from a variety of different class instances. Is it possible to bind each cell individually?
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Mar 28, 2009
I am trying to do a home project and after many hours of failing to complete what seems to be a simple process I have decided to ask for some help. None of the examples I have found on over 20 websites is complete or works as the author suggests. (Im sure because of version differences)
I want to make a Visual Basic Program that, by means of clicking on a radio button and then clicking on a button named "create" will add a blank table to my db named by the string variable connected to a listbox where this name can be first entered before clicking on button1. Can someone help guide me in the right direction? The table needs to have three columns; Col1, Col2, Col3 -my database is named "Database.sdf"
Form/Interface info radiobutton1 'an option that if selected = true in the button1 click event will process the data that creates the table. textbox1 'table name input button1 to create table 'to run the process combobox1 'shows available tables that exist in the db button2 'click event shows the combobox (table) in the datagridview window button3 to delete 'to delete the selected table button4 to reset 'to clear radio button choice,textbox1, and combobox1 datagridview1 'to veiw the selected table Note: if also possible I would like a datagridview of the new table on the same form after it has been created.I am using Visual Basic 2008 Express, It is a microsoft SQL Server Compatct 3.5 Database
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Nov 28, 2010
I want to create a class is it where I can do...
[code]...
How do I do this? Do i create a class and create a instance of CarData? but how do I add Color and Year etc to it?
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Jun 12, 2009
I am working on my new project and I need to create a table for each user dynamically. In which the user will provide the Table name in the textbox and on pressing Create button a new table gets created in the same MS access database file with the provided name.[code]...
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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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Sep 23, 2009
I have 3 controls sharing the same Bindingsource.Each control will require a different parameter for the query call to the DB to populate the proper controls data.However each control is filled with the same data and using one ctrl has the same effect to the thre controls. The controls all mirror eachother.how can i create a new instance of the table adapter?
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Jul 12, 2010
I want to create an access table at runtime. It happens that my table has to change, this means that i need to alter some or all of the fields. I need to be able to do this at runtime. I am using the following code, but it does not seem to work. The last field has to be an Autonumber field.
Private Sub CreateLessonPlan() '' Create table if it does not exsist
If con.State = ConnectionState.Closed Then
con.Open()
End If
Try
' Drop the Employees table if it already exists.
[Code] .....
Is it possible to alter the structure of a table that already has some records in it?
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Oct 5, 2010
I have a string array that represents the field names for a table I need to create. Given that the first field type is date, the second is time, and the rest are floats, what is the easiest way to create the table? I am currently using the following code, but it seems there may be a simpler, less convoluted way
vb
'read the column names from the OPC server
Dim colNames() As String = GetFileColumnNames().Split(","c)
'build command string used to create the table
[code]....
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Jan 25, 2010
im using this code for create view joining tow table but its gived me error on 'INNER JOIN' :
Cmd.CommandText = "CREATE VIEW MyQry As SELECT TblData.Emp_ID,TblData.Emp_Name,TblData.Emp_Bonus,TblData.Emp_Salary,TblData.Emp_Sanction FROM TblData WHERE TblData.Emp_ID LIKE '" & LstEmp.Text & "' INNER JOIN
[Code].....
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Nov 18, 2011
I wrote a function that allows me to retrieve data from a single SQL table and place it into 3 datagridviews. The problem i am having is as follows:* Whenever a user types something in anyone of the datagridviews that information is recorded in all three of the datagridviews.I am seeking partnership to address my issue. I have enclosed my function that is called to populate the 3 datagridviews
Function SetupColumns(ByVal str As String) As BindingSource
Data_set.Clear()
Try
[code]......
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Apr 27, 2010
I am selecting two table schema in a single adapter.
da=new sqldataadapter("select * from emp;select * from emp1",con);
da.fillschema(ds,Schematype.mapped);
then i am inserting some rows manually on both tables.i want to update the dataset. so that each data table in the datast will be updated in database.how to do this? since i am facing problem that it is updating all the rows in single table.
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Mar 11, 2010
i want to take single table backup on sql server 2000 how can i take only selected table backup ??
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Jan 5, 2012
I am using MS Access Database. Now I have to update a particular cell value. Here is my code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim str As String
Dim Presc As New System.Text.StringBuilder
Dim prs As String(), j As Integer
[Code]....
This code updates all the cells in that column. I want to update only the particular cell having Case_ID = str Where I have to add the WHERE clause (WHERE Case_ID = " & str & "
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Mar 21, 2012
i am trying to make a vb.net project for a travel agency ..... i have make all of the content of it but i got stuck in listbox .... i have added onnfiled of sql table into the listbox and now i want that when i select the list box content then all the other fields of a the row will automatically come in the rest of the textbox so i can add and delete it manually....... here is my code..... of one form(i have made 13 forms like that)
[Code]...
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Oct 28, 2009
I'm trying to insert Username, Password, and Account Balance data into my SQL Database. The code debugs correctly, but when I run the program, I'm not able to use the information I registered with to login with. (I have a separate form that lets me login with a username and password, and that works fine, so it has to be something to do with my register form.) Was this enough information?
[Code]...
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