我这样在dataGrid中嵌套一个日期下拉控件时会提示“未将对象引用设置到对象实例”?
为什么,我这样在dataGrid中嵌套一个日期下拉控件时会提示“未将对象引用设置到对象实例”?
是不是,我还有其他的地方还没有做对?
private void button1_Click(object sender, System.EventArgs e)
{
DataGridTextBoxColumn dgtb =
(DataGridTextBoxColumn)dataGrid1.TableStyles["employee"].GridColumnStyles["hire_date"];
dateTimePicker1.ValueChanged += new EventHandler(dateTimePicker1_ValueChanged);
dgtb.TextBox.Controls.Add(dateTimePicker1);
dateTimePicker1.ValueChanged += new EventHandler(dateTimePicker1_ValueChanged);
dgtb.TextBox.Controls.Add(dateTimePicker1);
}
private void dateTimePicker1_ValueChanged(object sender, System.EventArgs e)
{
///
}
private void Form1_Load(object sender, System.EventArgs e)
{
sqlDataAdapter1.Fill(dataSet11,"employee");
}