绑定到dataGridview多出现了两列额,该如何解决

绑定到dataGridview多出现了两列额

SQL code

select singer_id,singertype_name,singer_name,singer_gender,singer_description  from singer_info,singer_type where singer_name='bobo' and singertype_name=(select singertype_name from singer_type where singertype_id='1')

这样写的查询 但是 用list 绑定到datagridview 就多显示了2列
这怎么事

[解决办法]
是不是自动生成列没关啊？
dataGridView1.AutoGenerateColumns = false;
[解决办法]

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C# code

public List<Singer_info> Select(string name, string id)
{

List<Singer_info> infoList = new List<Singer_info>();
StringBuilder sb = new StringBuil……

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