vb.net - 如何在组合框中显示一个表的列名？

Question

在 vb.net 2008 中，如何在组合框中显示表列名称？

在 SQL 中，我有一个 Document 表，该表中有列，如 Doc_id、Size、Path。

组合框必须显示列名称，如

第一行是doc_id ，第二行是大小，最后一行是路径

Answer 1

Probably a little too late since I see this thing is about eight years old, but I just ran into this issue where I had to do exactly what the initial questioner was asking for. Since I resolved it, I will leave it here just incase another poor sap like us comes along looking for answers 'VB.net

    Dim ds As DataSet =   <define your dataset here>
    Dim dt As DataTable = ds.Tables(<Your tablename here>)
    For Each column As DataColumn In dt.Columns
        combobox1.Items.Add(column.ColumnName)
    Next 

Answer 2

根据我们的讨论，我建议您不要将组合框直接与DataTalble. 你可以通过循环所有的行来绑定它DataTable。您使用以下片段作为参考：

    Dim objDataTable As DataTable = ds.Tables("Document")
 IF objDataTable <> NULL Then
 For j As Integer = 0 To objDataTable.Rows.Count
    Dim str As String = objDataTable.Rows(j)("Doc_id").ToString()
    comboBox1.Items.Add(str)

    str = objDataTable.Rows(j)("Size").ToString()
    comboBox1.Items.Add(str)

    str = objDataTable.Rows(j)("Path").ToString()
    comboBox1.Items.Add(str)
Next
END IF

希望这对你有用；）