[2005] Data Table, Add New Row If There Is Something In The Table?
Feb 4, 2009
have made the data table in vb code, and it works flawlessly. It gets its values from labels which are part of a calculation.It shows the information to the user in a datagridview. Now i would like it to add new rows and fill them in if the user has already entered the data once and it has been logged in the datagridview.here is the current
'DATA TABLE
Dim Table1 As DataTable
Table1 = New DataTable("CF Log")
[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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Sep 28, 2009
I would like to know the best, or standard, way to accomplish real-time client updates in a small multi-user application using an access data table as a data source.
Specifically, this application will be used by 3-4 people. It uses a datatable which is filled on form load and bound to a datagrid at design time. The datatable is stored on a shared drive. The data table on the shared drive is updated in two ways:
1) Users can update the datagrid which then updates the datatable on the shared drive via the data adapter's Update method.
2) A server application does some work on some text files, periodically updating the data table.
I need the clients to reflect the changes to the data table on the shared drive as closely to real-time as possible. I know that the data table stored in memory on the client is disconnected from the data table on the shared drive, so I must query again to get the updates.
I have two questions:
1) Is there an alternvative model I can use which is connected, and which will automatically reflect the updates in the data table on the shared drive?
2) If not, what is the best way to check for changes in the data table (so I can know when to call the data adapter fill method)? I am planning to poll the drive for a change to the .mdb file, raise an event and then fill the data adapter when the event is triggered. I am using this method successfully now to check for changes to a text file in another application, and I know how to implement it
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Apr 10, 2011
I've got the following code for a password but need it the program to set a certain password. At the moment I just type in anything and it lets me get on with the program.
[Code]....
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Apr 15, 2009
I have SQL 2005 table with columns TypeId(int) & Description(ntext datatype).
The Description column has XML file content as value in the table.
Now i want to read the data into a dataset in VB.Net. How to do it in VB.Net. I am using Winforms and VB.Net in VS 2005.
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Apr 16, 2009
I have SQL 2005 table with columns TypeId(int) & Description(ntext datatype). The Description column has XML file content as value in the table. Now i want to read the data into a dataset in VB.Net. How to do it in VB.Net. I am using Winforms and VB.Net in VS 2005. Below i have given the xml file content.
<?xml version="1.0" encoding="Windows-1252" ?> - <SummaryPageComponent xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> - <categories>
[Code].....
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Nov 3, 2009
I am having to create a data adapter to pull data into a dataset, then loop through that dataset in order to add information into a new column from a separate data source. My first data source is access. My second data source is oracle. Here is the code I have to do this, which works well when I show it in a grid.
Dim da As New OleDbDataAdapter("SELECT tblSummary.WorkOrderNumber, tblLabor.Crew, tblLabor.NumberOfMechanics, tblLabor.NumberOfHoursPerMechanic, tblTasks.TaskNumber, tblTasks.TaskDescription FROM (tblLabor tblLabor INNER JOIN tblTasks tblTasks ON tblLabor.TaskID=tblTasks.TaskID) INNER JOIN tblSummary tblSummary ON tblTasks.JobPlanNumber=tblSummary.JobPlanNumber WHERE
[code]....
how I can search through this data table. For instance, I want to see only rows that are in this data table that have "Replace" somewhere in the "Description" field, which is the field I added from my second data source. How do I do this? Is there an easier way to do all this instead of filling my dataset from the first source and then adding columns from the second source by looping?
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Mar 19, 2009
Currently I add data to a hash table, then later on I loop through the hash table. To my horror I discovered that when you use FOR EACH with a hash table it doesn't return the items in the order you added them.I'm looking for a collection that I can add, edit and delete items from and loop through from start to end in that order.
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Feb 11, 2011
I start with a text file containing information such as this: Monday, Tuesday, Wednesday, Thursday, Friday 12:00:00.1, 12:00:00.1, 12:00:00.1, 12:00:00.1, 12:00:00.1 I made up the values of course but the idea is exactly the same. I need to have an if statement that if the text document has a record of Monday, then it is to put something like an X in the corresponding column in a data table. I'm sure I confused this way more than need be but I hope you get the most of it and I can elaborate if need be.
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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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Mar 11, 2010
VB.NET:i want to select data from sql server 2005 DB table and displaying into text box that depends on combo box selection using VB.NET
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Jun 20, 2012
my below code not able to transfer data gridview to sql database table... giving below error : -
"Object reference not set to an instance of an object."
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSave.Click
Try
[Code].....
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Jan 17, 2011
Has anybody ran into this error before?
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Apr 7, 2011
I am newbie in VS 2005 and started learning. Can you please tell me how to Pop up the data from a table when there is a key press in the textbox.
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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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Jan 23, 2012
I have exported data from a SQL Server table into a XML file and the output looks like this:
Filename = 11190.xml
Table name = LRTest
<NewDataSet>
[Code].....
Now I want to save the above XML file into my SQL Server 2005 table
With the same columns using vb.net windows forms, in every exported xml file there are 100 to 200 records. .
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Jan 17, 2010
I'm new to Visual Basic, VS2005.I've added a Table to the WebForm. At Default.aspx this code was added automatically:
[Code]...
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Aug 30, 2009
I want to add a new table in my accdb and copy the content tfrom an existing table into the new one.
Is there an easy way to do this?
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Dec 21, 2011
I have a data table whose one column is related to a column of another table. I have a listbox in a form which shows a column (which is sorted by another column value by ORDER clause) of the parent table and other columns are in textboxes. The child table is represented by a datagrid. When I add a new item in parent table and click save, the newly created item is listed at the bottom of the listbox violating my ORDER clause. When I wrote some codes to fill data again after updating, it shows an error message[code]...
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Mar 31, 2009
an error message when I am trying to load the data into a listbox and the value in the table is NULL. I am new in programming and I am using vb2005 Here is my
[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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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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Jan 19, 2009
Currently using VB 2008 with MS Access 2003.I have Two Tables with Names - " Company_Data" & "User_Data" in which i have the following columns.....
Company_Data
Name|Age|Department|Salary
User_Data
Name|Age|Department|Updated On
Now, Is there any code that can do the following:when i select a name in the combo box on the form (The list in the combo box is from the Name in the Company_Data table) and click update.It should copy the Details of the Record from Company_Data to User_Data with the current date in "Updated on" column. Note that the columns are not exactly Same. (Salary is not necessary in the User_Data)?
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Aug 15, 2010
I want to copy Header Data from one table to another. I know how to do this if the table data is exactly the same, but I need to generate a new HeaderKey for the destination table.Example - I am copying SalesOrder Header Data into the PickList Header Table, but I need to also add a PickListHeaderKey when I do so. It cannot be the SalesOrderHeaderKey which will be copied also.
Source Table (Sales Order)
DestinationTable (PickListHeaderTable)
SalesOrderHeaderKey [code]....
How can I edit this command to include the PickListHeaderKey, which needs to be inserted at the same time or before the rest of the data is copied?
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Jun 10, 2011
I really need your help. I want to query in a table in MS SQL using a data in another table.This is the query I've constructed : "SELECT TABLE1.FIELD1,TABLE1.FIELD2 FROM TABLE1, TABLE2.[code]
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