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时,我有类NullReference添加到嵌套列表
public class Gallery
{
public string method { get; set; }
public List<List<object>> gidlist { get; set; }
public int @namespace { get; set; }
}
按钮代码
private void button1_Click(object sender, EventArgs e)
{
List<object> data = new List<object>();
data.Add(618395);
data.Add("0439fa3666");
Gallery jak = new Gallery();
jak.method = "gdata";
jak.gidlist.Add(data);
[email protected] = 1;
string json = JsonConvert.SerializeObject(jak);
textBox2.Text = json;
}
在这里,我得到System.NullReferenceException。如何将项目添加到gidlist?
可能重复[什么是NullReferenceException,以及如何解决它?](http://stackoverflow.com/questions/4660142/what-is-a-nullreferenceexception-and-how -DO-I-FIX-我t) –