从数据库中读取并填充 DataTable [英] Read from database and fill DataTable

问题描述

I'm getting a set of data by a DataReader and assigning to a string. Now I need to fill the DataTable columns with the query fields. The DataTable is connected to a grid to display the filled data.

query is :

strSQL = "SELECT EmpCode,EmpID,EmpName FROM dbo.Employee

DataTable columns are EmpCode, EmpID, EmpName.

I need to read the query and assign to the columns of DataTable and fill the table. I have tried as below but i dont get the proper output,

Me.DtShifts.Tables("NonAllocated").Clear()
Me.DtShifts.Tables("NonAllocated").Load(dr)

解决方案

Connection object is for illustration only. The DataAdapter is the key bit:

Dim strSql As String = "SELECT EmpCode,EmpID,EmpName FROM dbo.Employee"
Dim dtb As New DataTable
Using cnn As New SqlConnection(connectionString)
  cnn.Open()
  Using dad As New SqlDataAdapter(strSql, cnn)
    dad.Fill(dtb)
  End Using
  cnn.Close()
End Using

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