从SQL Server表列Vb.NET执行文本框即时搜索的方法可以通过以下步骤实现:
Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs) Handles TextBox1.TextChanged
Dim searchText As String = TextBox1.Text.Trim()
Dim connectionString As String = "Your SQL Server connection string"
Dim query As String = "SELECT * FROM YourTable WHERE YourColumn LIKE '%' + @searchText + '%'"
Using connection As New SqlConnection(connectionString)
Using command As New SqlCommand(query, connection)
command.Parameters.AddWithValue("@searchText", searchText)
connection.Open()
Dim adapter As New SqlDataAdapter(command)
Dim dataTable As New DataTable()
adapter.Fill(dataTable)
DataGridView1.DataSource = dataTable
End Using
End Using
End Sub
这种方法可以实现基于文本框输入的即时搜索功能,用户可以在文本框中输入关键字,应用程序将会从SQL Server表中检索出包含该关键字的记录,并在数据表格中显示出来。
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