EXT.NET问题请教.....急急急

1. 为何我的工具箱没有FormPanel，FormGrid,RadioGroup控件
2. 第一行放了两个文本框，第二行 放了两个文本框加个按钮，结果显示不对称了。 
<ext:Form ID="Form2" ShowBorder="False" BodyPadding="5px" EnableBackgroundColor="true"
                        ShowHeader="False" runat="server">
                        <Rows>
                            <ext:FormRow>
                                <Items>
                                    <ext:DatePicker ID="txtFirLogDateSart" runat="server" Label="辅导时间" Width="120px">
                                    </ext:DatePicker>
                                    <ext:TextBox ID="txtFDName" runat="server" Label="辅导员姓名" Width="120px">
                                    </ext:TextBox>
                                </Items>
                            </ext:FormRow>
                            <ext:FormRow>
                                <Items>
                                    <ext:DatePicker ID="txtFirLogDateEnd" runat="server" Label="至" Width="120px">
                                    </ext:DatePicker>
                                    <ext:TextBox ID="txtFDTel" runat="server" Label="被辅导手机号码" Width="120px">
                                    </ext:TextBox>
                                    <ext:Button ID="btnSearch" Text="查询" runat="server" ValidateForms="SimpleForm1">
                                    </ext:Button>
                                </Items>
                            </ext:FormRow>
                        </Rows>
                    </ext:Form>