Updating datasource using dataadapter
Text strsql = "SELECT " & strtablename & ".* FROM [" & strtablename & "];" cmd. Command Text = "UPDATE [case] SET [case].case_worker =""sreeeeeeeeeeeeenivas"" WHERE (((case.case_id)=""L123""));" da. To update the database you need to create the Insert, Update and Delete commands of the data adapter. Data Bind() When you create the new data adapter, the select statement of the adapter is automatically created for you. You can add a button-click event handler either by double-clicking on the button or by using the Events tab of the properties window of a button control.On the Ole Db Data Adapter button-click event handler, you'll write code to read data from an Ole Db data source and fill data to the data grid.App Settings("Str Connection" )) dim obj Cmd As New Ole Db Command() Dim obj Param As Ole Db Parameter With obj Cmd . Contribution " & _ "FROM tbl Pub Author " & _ "WHERE (((tbl Pub Author.
dim dt Pub Table as New Data Table("Pub Authors") dim my Adapter as New Oledb Data Adapter sub filldg Pub Authors(pub ID as integer) Dim obj Connection as new Oledb Connection (Configuration Settings.
The code executes fine but the table does not get updated.
The update query if tried directly in access works fine but thru the code does not work.code is as follows: conn.
The Data Adapter serves as a bridge between a Data Set and a data source for retrieving and saving data. Sql Client Public Class Form1 Dim cnn As Sql Connection Dim connection String As String Dim sql Adp As Sql Data Adapter Dim ds As New Data Set Dim dt As New Data Set Private Sub Button1_Click(By Val sender As System. Open() sql Adp = New Sql Data Adapter("select * from users", cnn) cnn.
The Data Adapter provides this bridge by mapping Fill, which changes the data in the Data Set to match the data in the data source, and Update, which changes the data in the data source to match the data in the Data Set. Close() 'connection close here , that is disconnected from data source sql Adp. Fill(dt) 'fetching data from dataset in disconnected mode For i = 0 To ds.