将源绑定到ArrayList [英] Binding source to ArrayList

问题描述

大家好

我有一个BindingSource绑定到一个DataTable（来自sql数据库），有几列

I have a BindingSource bound to a DataTable(from sql database) with several columns

我需要得到来自绑定源的所有列名称并将它们添加到名称的arraylist中

I need to get all columns names from binding source and add them to an arraylist of names

如何做到这一点？

感谢您的帮助

推荐答案

这是一种方法。

Here is one way to do this.

Dim columnNames() As String = CType(bsCustomers.DataSource, DataTable).
        Columns.Cast(Of DataColumn).
        Select(Function(c) c.ColumnName).ToArray()

For Each col As String In columnNames
    Console.WriteLine(col)
Next

编辑，对于类型化的数据集，可能有多个表格，这里我定位第一个表格。

Edit, for a typed data set were there may be more than one table, here I target the first table.

Dim cols = CType(bsCustomers.DataSource, DataSet).
    Tables(0).
    Columns.Cast(Of DataColumn).
    Select(Function(c) c.ColumnName).ToArray

For Each col In cols
    Console.WriteLine(col)
Next

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