我创造了一些动态文本框的和按钮的占位符和想保存在文本框的信息被点击按钮时,但不知道如何从文本检索数据我怎么能读一个动态创建文本框
LiteralControl spacediv3 = new LiteralControl("  ");
Label lblComText = new Label();
lblComTitle.Text = "Comment";
TextBox txtComment = new TextBox();
txtComment.Width = 200;
txtComment.TextMode = TextBoxMode.MultiLine;
phBlog.Controls.Add(lblComText);
phBlog.Controls.Add(spacediv3);
phBlog.Controls.Add(txtComment);
Button btnCommentSave = new Button();
btnCommentSave.ID = "mySavebtnComments" ;
btnCommentSave.Text = "Save ";
phBlog.Controls.Add(btnCommentSave);
btnCommentSave.CommandArgument = row["ID"].ToString();
btnCommentSave.Command += new CommandEventHandler(btnSave_Click);
protected void btnSave_Click(object sender, CommandEventArgs e)
{
firstelement.InnerText = txtComment.text // this gives error on txtComment.text
}