VB.NET & System.Data.OleDb - DataSet() - How to learn System.Data.OleDb namespace is the .NET Framework Data Provider for OLE DB data source, Create a new DataSet and fill it using the DataAdapter from OLE DB (Microsoft Access (*.mdb) Database)
ShotDev Focus:
- VB.NET & System.Data.OleDb - DataSet()
Example
DataSet1.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.OleDb"%>
<%@ Page Language="VB" %>
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
BindData()
End Sub
Sub BindData()
'*** DataSet ***'
Dim ds As DataSet
ds = CreateDataSet()
myRepeater.DataSource = ds.Tables(0).DefaultView
myRepeater.DataBind()
End Sub
'*** DataSet ***'
Function CreateDataSet() As DataSet
Dim objConn As New System.Data.OleDb.OleDbConnection
Dim objCmd As New System.Data.OleDb.OleDbCommand
Dim dtAdapter As New System.Data.OleDb.OleDbDataAdapter
Dim ds As New DataSet
Dim strConnString,strSQL As String
strConnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="& _
Server.MapPath("database/mydatabase.mdb")&";Jet OLEDB:Database Password=;"
strSQL = "SELECT * FROM customer"
objConn.ConnectionString = strConnString
With objCmd
.Connection = objConn
.CommandText = strSQL
.CommandType = CommandType.Text
End With
dtAdapter.SelectCommand = objCmd
dtAdapter.Fill(ds)
dtAdapter = Nothing
objConn.Close()
objConn = Nothing
Return ds '*** Return DataSet ***'
End Function
</script>
<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Repeater id="myRepeater" runat="server">
<HeaderTemplate>
<table border="1">
<tr>
<th>CustomerID</th>
<th>Name</th>
<th>Email</th>
<th>CountryCode</th>
<th>Budget</th>
<th>Used</th>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td align="center"><%#Container.DataItem("CustomerID") %></td>
<td><%#Container.DataItem("Name") %></td>
<td><%#Container.DataItem("Email") %></td>
<td align="center"><%#Container.DataItem("CountryCode") %></td>
<td align="right"><%#Container.DataItem("Budget") %></td>
<td align="right"><%#Container.DataItem("Used") %></td>
</tr>
</ItemTemplate>
</asp:Repeater>
</form>
</body>
</html>
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VB.NET & System.Data.OleDb - DataSet() - How to create a multiple table in DataSet .
ShotDev Focus:
- VB.NET & System.Data.OleDb - DataSet()
Example
DataSet2.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.OleDb"%>
<%@ Page Language="VB" %>
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
BindData()
End Sub
Sub BindData()
'*** DataSet From DataSet ***'
Dim ds As DataSet
ds = CreateDataSet()
Dim i As Integer
Dim dg As DataGrid
Dim lbl As Label
For i = 0 To ds.Tables.Count - 1
dg = New DataGrid
With dg
.DataSource = ds.Tables(i).DefaultView
.AutoGenerateColumns = True
.DataBind()
End With
lbl = New Label
lbl.Text = "<br><b>"&ds.Tables(i).ToString & "</b><br>"
Me.lblText.Controls.Add(lbl)
Me.lblText.Controls.Add(dg)
dg = Nothing
Next
End Sub
'*** DataSet ***'
Function CreateDataSet() As DataSet
Dim objConn As New System.Data.OleDb.OleDbConnection
Dim objCmd As New System.Data.OleDb.OleDbCommand
Dim dtAdapter As New System.Data.OleDb.OleDbDataAdapter
Dim ds As New DataSet
Dim i As Integer
Dim strConnString,strSQL As String
strConnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="& _
Server.MapPath("database/mydatabase.mdb")&";Jet OLEDB:Database Password=;"
Dim TablesName(2) As String
TablesName(0) = "customer"
TablesName(1) = "audit"
TablesName(2) = "country"
For i = 0 To TablesName.GetUpperBound(0)
strSQL = "SELECT * FROM " & TablesName(i) & " "
objConn.ConnectionString = strConnString
With objCmd
.Connection = objConn
.CommandText = strSQL
.CommandType = CommandType.Text
End With
dtAdapter.SelectCommand = objCmd
dtAdapter.Fill(ds,TablesName(i))
Next
dtAdapter = Nothing
objConn.Close()
objConn = Nothing
Return ds '*** Return DataSet ***'
End Function
</script>
<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Label id="lblText" runat="Server"></asp:Label>
</form>
</body>
</html>
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Download this script.
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VB.NET & System.Data.OleDb - DataSet() - How to use DataSet and adding new Row to DataSet.
ShotDev Focus:
- VB.NET & System.Data.OleDb - DataSet()
Example
DataSet3.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.OleDb"%>
<%@ Page Language="VB" %>
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
BindData()
End Sub
Sub BindData()
'*** DataSet ***'
Dim ds As DataSet
ds = CreateDataSet()
'*** Adding Rows to DataSet ***'
Dim dr As DataRow
dr = ds.Tables("customer").NewRow()
dr.Item("CustomerID") = "C005"
dr.Item("Name") = "Weerachai Nukitram"
dr.Item("Email") = "[email protected]"
dr.Item("CountryCode") = "TH"
dr.Item("Budget") = "2000000"
dr.Item("Used") = "100000"
ds.Tables("customer").NewRow()
ds.Tables("customer").Rows.Add(dr)
'*** Adding Rows to DataSet ***'
Me.myGridView.DataSource = ds.Tables(0).DefaultView
Me.myGridView.DataBind()
End Sub
'*** DataSet ***'
Function CreateDataSet() As DataSet
Dim objConn As New System.Data.OleDb.OleDbConnection
Dim objCmd As New System.Data.OleDb.OleDbCommand
Dim dtAdapter As New System.Data.OleDb.OleDbDataAdapter
Dim ds As New DataSet
Dim strConnString,strSQL As String
strConnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="& _
Server.MapPath("database/mydatabase.mdb")&";Jet OLEDB:Database Password=;"
strSQL = "SELECT * FROM customer "
objConn.ConnectionString = strConnString
With objCmd
.Connection = objConn
.CommandText = strSQL
.CommandType = CommandType.Text
End With
dtAdapter.SelectCommand = objCmd
dtAdapter.Fill(ds,"customer")
dtAdapter = Nothing
objConn.Close()
objConn = Nothing
Return ds '*** Return DataSet ***'
End Function
</script>
<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView id="myGridView" runat="server"></asp:GridView>
</form>
</body>
</html>
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