未被捕获的TypeError：无法读取null DevExpress

问题描述

当OnRowUpdating调用我的gridview时，出现此错误，这似乎是devexpress js的错误。我该如何阻止它？

QUEUE

JS Error

这是我的网格视图之一，在其他网格视图中也有相同的错误。

我的site.master运行正常，实际上并没有添加太多js文件。

    <dx:ASPxGridView ID="gvUsuarios" runat="server" KeyFieldName="Id_Usuario" Width="100%" ClientInstanceName="gvUsuarios"
                        AutoGenerateColumns="False" Theme="MaterialCompact" OnRowUpdating="gvUsuarios_RowUpdating" OnRowInserting="gvUsuarios_RowInserting" EnableCallBacks="true">
                        <SettingsDataSecurity AllowDelete="false" AllowEdit="true" AllowInsert="true" />
                        <Settings VerticalScrollBarMode="Visible" VerticalScrollableHeight="350" ShowHeaderFilterButton="true" ShowFilterRowMenu="true" />
                        <SettingsPager Position="Bottom">
                            <PageSizeItemSettings Items="5,10,20" />
                        </SettingsPager>
                        <EditFormLayoutProperties>
                            <SettingsAdaptivity AdaptivityMode="SingleColumnWindowLimit" SwitchToSingleColumnAtWindowInnerWidth="700" />
                        </EditFormLayoutProperties>
                        <SettingsPopup>
                            <EditForm Width="600">
                                <SettingsAdaptivity Mode="OnWindowInnerWidth" SwitchAtWindowInnerWidth="768" />
                            </EditForm>
                            <HeaderFilter MinHeight="140px"></HeaderFilter>
                        </SettingsPopup>
                        <Columns>
                            <dx:GridViewCommandColumn ShowEditButton="True" ShowNewButtonInHeader="True" VisibleIndex="0" Width="90px">
                            </dx:GridViewCommandColumn>
                            <dx:GridViewDataTextColumn FieldName="Id_Usuario" Caption="USUARIO" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True"
                                HeaderStyle-HorizontalAlign="Center" VisibleIndex="1" Width="150px">
                                <PropertiesTextEdit MaxLength="30">
                                    <ValidationSettings EnableCustomValidation="True" SetFocusOnError="True"
                                        ErrorDisplayMode="Text" ErrorTextPosition="Bottom">
                                        <RequiredField ErrorText="Campo Requerido" IsRequired="true" />
                                        <ErrorFrameStyle Font-Size="10px">
                                            <ErrorTextPaddings PaddingLeft="0px" />
                                        </ErrorFrameStyle>
                                    </ValidationSettings>
                                </PropertiesTextEdit>
                                <HeaderStyle HorizontalAlign="Center"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataTextColumn>
                            <dx:GridViewDataTextColumn FieldName="Nombre" Caption="NOMBRE DE USUARIO" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True" HeaderStyle-HorizontalAlign="Center" VisibleIndex="2" Width="200px">
                                <PropertiesTextEdit MaxLength="60">
                                    <ValidationSettings EnableCustomValidation="True" SetFocusOnError="True"
                                        ErrorDisplayMode="Text" ErrorTextPosition="Bottom">
                                        <RequiredField ErrorText="Campo Requerido" IsRequired="true" />
                                        <ErrorFrameStyle Font-Size="10px">
                                            <ErrorTextPaddings PaddingLeft="0px" />
                                        </ErrorFrameStyle>
                                    </ValidationSettings>
                                </PropertiesTextEdit>
                                <HeaderStyle HorizontalAlign="Center"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataTextColumn>
                            <dx:GridViewDataComboBoxColumn FieldName="Perfil" Caption="PERFIL" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True" HeaderStyle-HorizontalAlign="Center"
                                HeaderStyle-Wrap="True" VisibleIndex="3">
                                <PropertiesComboBox EnableCallbackMode="true" CallbackPageSize="30" ValueField="Perfil" TextField="Perfil">
                                    <ValidationSettings EnableCustomValidation="True" SetFocusOnError="True"
                                        ErrorDisplayMode="Text" ErrorTextPosition="Bottom">
                                        <RequiredField ErrorText="Campo Requerido" IsRequired="true" />
                                        <ErrorFrameStyle Font-Size="10px">
                                            <ErrorTextPaddings PaddingLeft="0px" />
                                        </ErrorFrameStyle>
                                    </ValidationSettings>
                                </PropertiesComboBox>
                                <HeaderStyle HorizontalAlign="Center" Wrap="True"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataComboBoxColumn>
                            <dx:GridViewDataComboBoxColumn FieldName="Nombre_Vp_Vpa" Caption="VP/VPA" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True" HeaderStyle-HorizontalAlign="Center"
                                HeaderStyle-Wrap="True" VisibleIndex="4">
                                <PropertiesComboBox CallbackPageSize="30" ValueField="Nombre_Vp_Vpa" TextField="Nombre_Vp_Vpa">
                                    <ValidationSettings EnableCustomValidation="True" SetFocusOnError="True"
                                        ErrorDisplayMode="Text" ErrorTextPosition="Bottom">
                                        <RequiredField ErrorText="Campo Requerido" IsRequired="true" />
                                        <ErrorFrameStyle Font-Size="10px">
                                            <ErrorTextPaddings PaddingLeft="0px" />
                                        </ErrorFrameStyle>
                                    </ValidationSettings>
                                </PropertiesComboBox>
                                <HeaderStyle HorizontalAlign="Center" Wrap="True"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataComboBoxColumn>
                            <dx:GridViewDataComboBoxColumn FieldName="Area" Caption="AREA" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True" HeaderStyle-HorizontalAlign="Center"
                                HeaderStyle-Wrap="True" VisibleIndex="5">
                                <PropertiesComboBox ValueField="Area" TextField="Area">
                                    <ValidationSettings EnableCustomValidation="True" SetFocusOnError="True"
                                        ErrorDisplayMode="Text" ErrorTextPosition="Bottom">
                                        <RequiredField ErrorText="Campo Requerido" IsRequired="true" />
                                        <ErrorFrameStyle Font-Size="10px">
                                            <ErrorTextPaddings PaddingLeft="0px" />
                                        </ErrorFrameStyle>
                                    </ValidationSettings>
                                </PropertiesComboBox>
                                <HeaderStyle HorizontalAlign="Center" Wrap="True"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataComboBoxColumn>
                            <dx:GridViewDataComboBoxColumn FieldName="Puesto" Caption="PUESTO" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True" HeaderStyle-HorizontalAlign="Center"
                                HeaderStyle-Wrap="True" VisibleIndex="6">
                                <PropertiesComboBox ValueField="Puesto" TextField="Puesto">
                                    <ValidationSettings EnableCustomValidation="True" SetFocusOnError="True"
                                        ErrorDisplayMode="Text" ErrorTextPosition="Bottom">
                                        <RequiredField ErrorText="Campo Requerido" IsRequired="true" />
                                        <ErrorFrameStyle Font-Size="10px">
                                            <ErrorTextPaddings PaddingLeft="0px" />
                                        </ErrorFrameStyle>
                                    </ValidationSettings>
                                </PropertiesComboBox>
                                <HeaderStyle HorizontalAlign="Center" Wrap="True"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataComboBoxColumn>
                            <dx:GridViewDataTextColumn FieldName="Correo" Caption="CORREO ELECTRÓNICO" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True" HeaderStyle-HorizontalAlign="Center" VisibleIndex="7" Width="250px">
                                <PropertiesTextEdit MaxLength="50">
                                    <ValidationSettings EnableCustomValidation="True" SetFocusOnError="True"
                                        ErrorDisplayMode="Text" ErrorTextPosition="Bottom">
                                        <RequiredField ErrorText="Campo Requerido" IsRequired="true" />
                                        <ErrorFrameStyle Font-Size="10px">
                                            <ErrorTextPaddings PaddingLeft="0px" />
                                        </ErrorFrameStyle>
                                    </ValidationSettings>
                                </PropertiesTextEdit>
                                <HeaderStyle HorizontalAlign="Center"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataTextColumn>
                            <dx:GridViewDataCheckColumn FieldName="Estado" Caption="ACTIVO" CellStyle-HorizontalAlign="Center" CellStyle-Wrap="True" HeaderStyle-HorizontalAlign="Center"
                                HeaderStyle-Wrap="True" VisibleIndex="8">
                                <HeaderStyle HorizontalAlign="Center" Wrap="True"></HeaderStyle>
                                <CellStyle HorizontalAlign="Center" Wrap="True"></CellStyle>
                            </dx:GridViewDataCheckColumn>
                        </Columns>
                    </dx:ASPxGridView>

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）