Update The Datatable?

Nov 22, 2010

When i trying to update the datatable i have this error: Syntax error INSERT INTO

The code
Imports System.Data
Imports System.Data.OleDb

[code]....

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Use A Datatable As A Data Source To Update A Second Datatable Using Sql?

Aug 10, 2011

I am updating a data table (dt_report_crypt) from an encrypted csv file in the code below:I decrypt the colums and update the same dreport_crypt, such that it will contain de-crypted data.This part is working wellI however need to use this de-crypted datatable as a data source to update a second table(dt_report), using the sql SELECT command to filter relevant data,

Dim dt_report As DataTable
Dim dt_report_crypt As DataTable
Using cn As

[code].....

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How To Update Datatable

May 25, 2009

I want to update a record in my database but without using "update mytblname" query.I am using following code ,

sql = "select * from customer where id = " & Val(Me.id.Text)
Dim adapter As New SqlDataAdapter(sql, conn)
Dim builder As SqlCommandBuilder = New SqlCommandBuilder(adapter)

[code]....

Its giving me error.

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Update A Row In A DataTable?

Mar 5, 2009

I have the following code:

Dim i As Integer = dtResult.Rows.Count
For i = 0 To dtResult.Rows.Count Step 1
strVerse = blHelper.Highlight(dtResult.Rows(i).ToString, s)

[code]....

I want to add a strVerse to the current row.

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How To LINQ Datatable Update

Sep 21, 2010

discovered the compact mode of this instructions vs usual code. I found sample code for selecting, etc. from a datatable, transforming a column in a list or array - all operations are "Select"s - readonly.I need to make an simple update on a certain rows (using LINQ) from a DISCONNECTED datatable for which now I'm using this

for each dr as datarow in dtable.Rows
dr("MyField") = 77
next

[code].....

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Update Database From A Datatable?

Apr 5, 2011

I need to make a small application in which I use a datagridview that is populated with data from a table from an SQL Server.In this datagridview I marked the checkbox for adding new rows, also for modifying values, etc So the user should be able to change values inside the datagridview and when the job is finished I have 'Save' button which should Updateall changes in database.For retreving data from the SQL server I use method

Me.Bedarf_tableTableAdapter.Fill(Me.ISB_CLDataSet.bedarf_table)

and for update I use:

Me.Bedarf_tableTableAdapter.Update(ISB_CLDataSet)

I have only one problem - When I clcik on the Save button I receive a message like this:Update requires a valid UpdateCommand when passed DataRow collection with modified rows.but only if I change values from existing rows. I am adding new rows the update method is working perfectly.

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Update Values In A DataTable?

Aug 17, 2011

I have two data tables. dtAllResults is the master data table which contains ResultIDs and everything related to each ResultID. dtNoCV is the other data table which only contains ResultIDs. If the ResultID from dtNoCV is located in dtAllResults I want to update some checkbox cells in dtAllResults (as seen below).

I'm looking for better performance, because dtNoCV may contain a few hundred ResultIDs and I'm afraid this loop will slow things down.

Private Function prvfnc_UpdateDGVSource(ByRef dtAllResults As DataTable, ByVal dtNoCV As DataTable, ByVal intEnumValue As Integer) As String
Try

[Code]....

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Datatable Update Using Merge Function

May 13, 2012

i create a Class to update data from remote sql server to local compact sql server data. I write two method one method check if any update date in remote server method like..[code]Last i Call SaveLocalDatabase method. But When i check table in my local compact sql server database there has no data update.is any think missing to write. i Think i found a problem. i use LocalTable.Merge(dTable, True). When Merge Call then rowstate remain unchange.

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Datatable.select And Then UPDATE / Edit

May 15, 2012

I m' trying to select a row and then edit, and no error on debuggiing but the changes are not saved on the database

[Code]....

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Update A DataTable From A Modified DataGridView?

Jan 9, 2011

- i have a DataGridView (DGV) whose datasource is a DataTable (not BindingSource).

the DGV is used to sort the datatable before splitting the fields into different textboxes.

i can add/delete record from the DGV and the Database is modified accordingly. but it seems that i can append an existing record in the DGV thru the textboxes but the changes are not made to the database.

here is my codes for the form and buttons:

'*****This One Works Fines but it is used to add new records****
Private Sub CmdCommit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CmdCommit.Click
If Index <> -1 Then

[Code]....

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Update A Datatable Using Syntax String?

Aug 12, 2010

I get a syntax error while trying to update a datatable using this syntax string:"SELECT * FROM ClientContacts WHERE MembershipID = '" & stringVariable & "' "

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Update A SQL Table From A Modified Datatable?

Feb 9, 2011

I used the DataSet Designer to create FTWDataSet which holds the AlarmText table from a SQLExpress database.This far my form contains ONLY Datagridview1.The code below successfully shows the contents of the AlarmText table plus the one added checkbox column (which I will populate with display-only data, and is not an issue here).

Dim ta As New FTWDataSetTableAdapters.AlarmTextTableAdapter
Dim dt As New FTWDataSet.AlarmTextDataTable
ta.Fill(dt)[code]....

What else do I need to do to use the DataGridView to edit and save values in the AlarmText table?

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Update Access Database With DataTable?

May 26, 2011

I've been perusing some hep forums and some help books but cant seem to get my head wrapped around this. My task is to read data from two text files and then load that data into an existing MS Access 2007 database. So here is what i'm trying to do:

Read data from first text file and for every line of data add data to a DataTable using CarID as my unique field. Read data from second text file and look for existing CarID in DataTable if exists update that row. If it doesnt exist add a new row. once im done push the contents of the DataTable to the database.

What i have so far:

Dim sSQL As String = "SELECT * FROM tblCars"
Dim da As New OleDb.OleDbDataAdapter(sSQL, conn)
Dim ds As New DataSet

[Code].....

In constructing my table i use "SELECT * FROM tblCars" but what if that table has millions of records already. Is that not a waste of resources? Should i be trying something different if i want to update with new records?

Once Im done with the first text file i then go to my next text file. Whats the best approach here: To First look for an existing record based on CarNum or to create a second table and then merge the two at the end?

Finally when the DataTable is done being populated and im pushing it to the database i want to make sure that if records already exist with three primary fields (DriveDate, DCode, and CarNum) that they get updated with new fields and if it doesn't exist then those records get appended. Is that possible with my process?

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Update DataGridView Bound To DataTable?

Mar 21, 2012

I have a DataGridView bound to a DataTable. Although all rows are displayed in the grid, the table represented by the Grid's DataSource does not get updated after changing values in one or more DataGridView columns. Both grid and table contain a Primary Key. What am I missing here? Do I need to do something in the RowValidated event?

dgvCriticalContacts.AutoGenerateColumns = False
Dim ccRs As DataTable = Common.OpenRecordset("SELECT * FROM PhoneList")
dgvCriticalContacts.DataSource = ccRs

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Update DataTable From DataGridView Control?

Oct 19, 2011

I have a form with a DataGridView (dgvResults) control on it that displays data from a DataTable (dt). On this same form I have a button that the user will click to update a column (intCommentCode) on dgvResults with a numeric code they have entered in a text box. When the form is first displayed all 100 rows of dt are displayed. The user may filter dt to only show 10 rows. When the user clicks the button, I only want to update those ten rows. The code below updates dgvResults just fine, but dt is not updated, why? I thought that if dgvResults was updated dt would automatically be updated also. How do I update dt to match what dgvResults shows?

[Code]...

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Update Datatable With Master Table?

Mar 11, 2010

I have followin codes

Dim dt As DataTable
Dim str As New SqlClient.SqlCommand("select code,name from employees", con)
da = New SqlClient.SqlDataAdapter(str)

[Code].....

How to update datatable with master table?

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Update Datatable With Multiple Instances?

Mar 23, 2011

If the application is used with multiple users/instances adding records to the same database, whats the best practice for doing this and not incurring any conflicts with primary keys. Right now my partial solution is to do a tableadapter.fill before adding a new row to retrieve any new records. But this obviously isnt the best practical solution as the likleyhood of a conflict still exists when letting the apllication increment the key.

Whats a "correct" way to do this, any reading or examples would be great for me to learn.

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Update Mysql From Dataset/datatable?

Apr 20, 2011

I am trying to update mysql table from a txt file using vb.net. So far I've found code here and there and been able to extract the data from the txt file, now my question is how to update mysql from the same dataset or xml file. Here is my code to populate the datagrid/dataset/xml file.what is the easiest way to update mysql assuming "Orden" is my primary key in mysql.

OpenFileDialog1.Filter = "Text File|*.txt"
OpenFileDialog1.Title = "Open File..."
OpenFileDialog1.FileName = "trackings"

[code]....

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VS 2010 Quick Way To Update Datatable?

Nov 14, 2011

I have a table that has 9 columns, this table has about 5000 rows, but sometimes the user need to update the data in the table. The new data is in another table, with different columns names and only with 8 columns, the ninth column it's the date of the update (i know that this columns shouldn't be here...).

So for now i'm filing one datatable (the data come form a webservice that returns a dataset with this table), and after that i clean the original table and then for each row in the new datatable i call the insert command.Is there other way, better way, to do this?

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VS 2010 Update Data In DataTable?

Mar 17, 2011

How to make the data in the DataTable automatically change when there is the Insert, Update or Delete.my code like this:

VB.NET
Imports System.Data
Imports System.Data.OleDb

[code].....

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Bulk Update From A Datatable To Sql 2005 Table

Aug 25, 2011

Here is what i am doing as of now...

For i As Integer = 0 To Dt1.Rows.Count - 1
Cmd.CommandText = "UPDATE Spares SET Pur_Price=" &
Dt1.Rows(i)("Cost_Price") & ",Sell_Price=" &

[Code].....

However this procedure is very time consuming, i need to optimize it. I need to update 20000 rows ...

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Force DataGridView To Update Underlying DataTable

Mar 27, 2012

I need to force a DataGridView cell to update the underlying DataTable.I fill a DataTable using my adapters Fill method, then set that DataTable as my DataGridView's datasource. Lets say one of my DataGridView columns is a CheckBox column.If I left-click a checkbox in the first row and then left click a different row in the DataGridView the underlying DataTable_RowChanged event fires, which tells me the first edit I did has gone to the underlying DataTable.If I left-click the checkbox in a row and then right-click the column header to display my context menu the DataTable_ RowChanged event doesn't fire because the DataGridView row is still in edit mode.I've tried Me.DataGridView.EndEdit(),but that doesn't cause my RowChanged event to fire,I need to ensure my underlying DataTable matches the data in the DataGridView, because I am getting a subset of my original table.[code]

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Forms :: Update Datatable To Sql Database With Filtering?

Dec 28, 2011

im using vb.net winform.i want to update a datatable to sqlserver. but before that. i need to check by comparing it to another datatable(same structure but contain new data). i need to insert new data only.

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Performing Insert And Update On A DataTable Using LINQ

Jul 12, 2011

I am pretty new to using LINQ and have been trying it out querying my strongly typed DataTable.
I have managed to perform a 'Select' ok but was wondering if someone can point me in the right direction to do Insert and Updates. I'm not sure if LINQ is best doing an insert at all?

My Select code is as follows:

Dim results = From myRow In _dt.AsEnumerable() _
Where myRow.Language_key = Lang And _
myRow.Section_key = SectionKey And _

[Code]....

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Saving Dataset Changes With TableAdapter.Update(DataTable)

May 25, 2011

I have a dataset that fills a tableadapter and I'd like to be able to post changes made to the dataset to a database with a date marking the changes. I've never used the TableAdapter.Update method before and was wondering if someone has any good tutorial links for that method. Here is the

[Code]...

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Saving Dataset Changes With TableAdapter.Update(DataTable)?

May 24, 2011

I have a dataset that fills a tableadapter and I'd like to be able to post changes made to the dataset to a database with a date marking the changes. I've never used the TableAdapter.Update method before and was wondering if someone has any good tutorial links for that method.

[Code]...

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Update Columns In Datatable Using Linq Without Condition?

Jun 22, 2011

How to update columns in datatable using linq without conditions. I have an idea that I'm just gonna loop all the data in the datatable but don't know what comes in LINQ.

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Update Newly Added Data In Datatable?

Apr 20, 2012

I have a Datatable where i added data from textbox when i want to edit selected datatable rows from gridview to eidit these values will be showing in their respected fields but when i click update button the only first row in gridview will be updated either i select first row or any other row in gridview for editing whereas i want to update the selected rows data. NOTE: I was design datatable visually under vb.net 2008 designer and the datatable have not any primarykey i am using following code under btnupdate event

Dim i As Integer
StoreDBDataSet.Tables("DataTable1").Rows(i).Item("Code") = txtCode.Text
StoreDBDataSet.Tables("DataTable1").Rows(i).Item("Description") = txtDescription.Text

[code]....

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Update TableTwo Using A DataTable Built Using TableOne

Aug 19, 2011

I am trying to Update TableTwo using a DataTable built using TableOne. The relationship between tables is a foreign Column called "TableOneId" inside TableTwo.

I used the following code sample to make this work:

[URL]

The DataTable is populated in another Public Shared Function

No error messages are reported. The watch reveals that the DataTable is loaded with Data.

The DataTable Is defined as:

Public MyDataTable As New DataTable
Public Shared Sub DefineDataTable()
Dim ErrorEmail As New ErrorEmailMessageClass

[Code]....

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Updating Dataset / Datatable With Various UPDATE Queries

Sep 11, 2011

I have a vb.net project where I have data loaded into a datatable in a dataset and have to do approximately 20 updates that are sql like. On this project, I don't have access to sql nor does the end user want to use any type of sql, sql express etc.

My question is, is there a generic way of doing this so I can reuse it. Was wondering if a dataview could be analgous to the "WHERE CLAUSE" and some type of delegate function could be the update function.

[Code]....

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