如何在dropDownCheckBoxes中添加Require字段验证...？ [英] How to add the Require field validation in dropDownCheckBoxes ...?

问题描述

如何在dropDownCheckBoxes中添加Require字段验证...？



这是我的代码

Hi,

How to add the Require field validation in dropDownCheckBoxes ...?

This is my code

<asp:dropDownCheckBoxes ID="ddllanguage" runat="server" xmlns:asp="#unknown"  onchange="onSelectionChange()"

                AddJQueryReference="True" UseButtons="false" UseSelectAllNode="false" ClientIDMode="Static">
                <Style SelectBoxWidth="200" dropDownBoxBoxWidth="200" dropDownBoxBoxHeight="130" />
                <Texts SelectBoxCaption="-Select-" />
            </asp:dropDownCheckBoxes>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"  ControlToValidate="ddllanguage"

                          ErrorMessage="*" ToolTip="Language is required"

                         ValidationGroup="Veterinary" InitialValue="-Select-"

                        ></asp:RequiredFieldValidator>

当我运行应用程序时，我收到此错误由'RequiredFieldValidator2'的ControlToValidate属性引用的控制'ddllanguage'无法验证。



任何人给予我有任何建议如何添加验证....



Regrads

Ravinder

When i run the application i am getting this error "Control 'ddllanguage' referenced by the ControlToValidate property of 'RequiredFieldValidator2' cannot be validated."

anybody give me any suggestion how to add the validation....

Regrads
Ravinder

推荐答案

参考

http：//saplin.blogspot。 in / 2011/05 / dropdowncheckboxes-using-control.html [ ^ ]

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