How Can I Display A Particular Record Using Textbox ?I Am Getting Oledb Exception Error...Pls Suggest Me A Solution

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Imports System.Data.OleDb
Public Class Form7
Dim cn As New OleDbConnection
Dim cm As New OleDbCommand
Dim qry As String = ""
Private Sub Form7_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

cn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;data source =E:\FINALYRPROJECT.xlsx;extended properties=excel 12.0;"
cn.Open()
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
qry = "SELECT * FROM [student$] WHERE DOMAIN = CLOUD"
With cm
.Connection = cn
.CommandText = qry
Dim rdr As OleDbDataReader
rdr = cm.ExecuteReader

While rdr.Read()
ComboBox1.Items.Add(rdr(0).ToString)
End While
rdr.Close()
End With
ComboBox1.AutoCompleteSource = AutoCompleteSource.ListItems
ComboBox1.SelectedIndex = 0

End Sub
End Class

Posted 23-Aug-15 2:18am

Mohi@priya

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Mohi@priya 23-Aug-15 11:55am

qry = "SELECT * FROM [student$] WHERE DOMAIN = CLOUD" instead of this line ,if i give
qry = "SELECT * FROM [student$] WHERE DOMAIN = TextBox1.Text",i am getting an error OleDbException was unhandled
No value given for one or more required parameters.i need an output in combobox like if i give a name in textbox,it's corresponding rollno,domain etc should be displayed

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Chandranath Shetty · Answer 1 · 2015-08-23T04:48:00

Solution 1

How Can I Display A Particular Record Using Textbox ?

I did not find any textbox in your code. What do you want to display in textbox

I am getting oledb exception error

In which line you are getting this error. Use try Catch to catch the error

Posted 23-Aug-15 4:48am

Chandranath Shetty