请问我的用代码生成combobox控件的程序,为什么MyCombobox.Style :=csDropDownList这句会报错???
var MyCombobox:TCombobox;
begin
MyCombobox:=TCombobox.Create(CompParent);
MyCombobox.Parent :=CompParent;
MyCombobox.Left :=CompLeft;
MyCombobox.Top :=CompTop;
MyCombobox.Items.Add('');
MyCombobox.Items.Add('并且');
MyCombobox.Items.Add('或者');
MyCombobox.Items.Add('非');
MyCombobox.Style :=csDropDownList; //这句报错,为什么???
end;