自定义控件子控件初始化问题,高手请进!
public class TripalCheckList : System.Web.UI.WebControls.WebControl
{
private TextBox txtListContent;
private TextBox txtListID;
private string _DataTextField;
//构造函数
public TripalCheckList()
{
txtListContent = new TextBox();
txtListID = new TextBox();
}
protected override void CreateChildControls()
{
txtListContent = new TextBox();
txtListID = new TextBox();
txtListContent.ID = this.ClientID + "_Text";
txtListID.ID = this.ClientID + "_Value";
base.CreateChildControls ();
}
public string SelectedListText
{
set
{
txtListContent.Text = value;
}
get
{
return txtListContent.Text;
}
}
------在构造函数中初始化子控件,设计时拖拉到窗体可以呈现
但在获取子控件的值时,构造函数再次执行导致实例化一个新的子控件,丢失了值
如果不在构造函数中初始化子控件,则报错txtListContent未实例化
请问:怎么解决啊