当设置数据源的DataGridView错误 [英] DataGridView error when set DataSource

问题描述

我得到一个错误运行datagridview.DataSource =数据视图时; 数据视图是正确的。我可以看到里面的数据，当我调试程序。

I got an error when run datagridview.DataSource = dataView; dataview is correct. I can see data inside it when I debug program.

我得到一个错误不设置到对象的实例对象引用。

I got next error "Object reference not set to an instance of an object."

任何想法？

code：

this.datagridview = new System.Windows.Forms.DataGridView();

...

  DataSet ds = new DataSet();
  XmlReaderSettings settings = new XmlReaderSettings();
  StringReader stringReader = new StringReader(retString);
  XmlReader xmlReader = XmlReader.Create(stringReader, settings);
  ds.ReadXml(xmlReader);
  DataView dataView = ds.Tables[0].DefaultView;

数据视图不为空。我调试的时候我能够查看

dataView is not null. I am able to view it when debug

推荐答案

是你code中相同的方法，或者是的DataGridView的初始化的一个的InitializeComponent 的方法？

Is all you code in the same method, or is the initialization of the DataGridView in a InitializeComponent method?

如果它在一个的InitializeComponent 方法，请确保您的其他code被称为后该方法被调用。检查，如果你已经有了一个构造你的控制它调用的InitializeComponent 。

If it's in a InitializeComponent method, make sure that your other code is called after that method has been called. Check that if you've got a constructor for your Control that it calls InitializeComponent.

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