单选按钮列表的数据绑定使用的SelectedValue ......可能吗？ [英] Databinding of RadioButtonList using SelectedValue...possible?

问题描述

我数据绑定的GridView的一个对象的数据源。在GridView包含一个TemplateField其中包含与内联定义ListItems的一个单选按钮列表。

我希望能够在RadioButtonList的数据绑定的SelectedValue到同一个基础表与其他网格列，但它不工作！

我有我的语法错误，或者这是不可能的，需要循环code分别选择每行中适当的项目？

 ＆LT; llblgenpro：LLBLGenProDataSource ID =llbComputerApplicationDataContainerType =EntityCollection=服务器＆GT;＆LT; / llblgenpro：LLBLGenProDataSource＆GT;
        ＆LT; ASP：GridView控件ID =gridComputerApps的DataSourceID =llbComputerApplication=服务器的AutoGenerateColumns =FALSE
            EmptyDataText =未找到该计算机应用。
            的DataKeyNames =ComputerID，的applicationID的EnableViewState =假
            风格=BORDER-风格：点缀;边框宽度：瘦
            ＆GT;
            ＆LT;柱体和GT;
                ＆LT; ASP：BoundField的数据字段=的applicationID的HeaderText =应用程序IDSORTEX pression =的applicationID可见=真/＆GT;
                ＆LT; ASP：的TemplateField的HeaderText =应用程序Name\"><ItemTemplate><%#Eval(\"Application.ApplicationName\")%></ItemTemplate></asp:TemplateField>
                ＆LT; ASP：的TemplateField的HeaderText =归Name\"><ItemTemplate><%#Eval(\"Application.NormalizedAppName\")%></ItemTemplate></asp:TemplateField>
                ＆LT; ASP：模板列HeaderText=\"Notes\"><ItemTemplate><%#Eval(\"Application.NormalizedNotes\")%></ItemTemplate></asp:TemplateField>
                ＆LT; ASP：的TemplateField＆GT;
                    ＆LT;＆HeaderTemplate中GT;
                    ＆LT; / HeaderTemplate中＆GT;
                    ＆LT;＆ItemTemplate中GT;
                        ＆LT; ASP：RadioButtonList的SelectedValue的='＆LT;％＃的eval（RequirementOption）％＆GT;' ID =rblRequirementOptionRepeatDirection =水平=服务器＆GT;
                            ＆LT; ASP：ListItem的值=现在需要的文本=现在需要＆GT;＆LT; / ASP：ListItem的＆GT;
                            ＆LT; ASP：ListItem的值=极品总有一天文本=极品总有一天＆GT;＆LT; / ASP：ListItem的＆GT;
                            ＆LT; ASP：ListItem的值=不需要文本=不需要＆GT;＆LT; / ASP：ListItem的＆GT;
                        ＆LT; / ASP：RadioButtonList的＆GT;
                    ＆LT; / ItemTemplate中＆GT;
                ＆LT; / ASP：的TemplateField＆GT;
                ＆LT; ASP：BoundField的数据字段=NormalizedNotes的HeaderText =注意事项可见=FALSE/＆GT;
            ＆LT; /专栏＆GT;
        ＆LT; / ASP：GridView的＆GT;
 

解决方案

您有什么应该工作。您是否收到错误？下面是我当前的项目复制工作的例子。我绑定到一个可空位字段 - 所以有一个隐藏列表项，接受空

 ＆LT; ASP：RadioButtonList的=服务器ID =MyRbl的SelectedValue ='＆LT;％＃绑定（MyRblField）％＆GT;'
    的CssClass =NormalTextBoxRepeatDirection =水平＆GT;
    ＆所述; asp的：列表项值=假文本=否/＆GT;
    ＆LT; ASP：ListItem的值=真正的文本=是/＆GT;
    ＆LT; ASP：ListItem的值=文本=的风格=显示：无/＆GT;
＆LT; / ASP：RadioButtonList的＆GT;
 

I am databinding a GridView to an object datasource. The gridview contains a TemplateField which contains a RadioButtonList with ListItems defined inline.
I want to be able to databind the SelectedValue of the RadioButtonList to the same underlying table as the other grid columns, but it doesn't work!

Do I have my syntax wrong, or is this impossible and requires looping code to individually select the proper item in each row?

<llblgenpro:LLBLGenProDataSource ID="llbComputerApplication" DataContainerType="EntityCollection" runat="server"></llblgenpro:LLBLGenProDataSource>
        <asp:GridView ID="gridComputerApps" DataSourceID="llbComputerApplication" runat="server" AutoGenerateColumns="False" 
            EmptyDataText ="NO APPLICATIONS FOUND FOR THIS COMPUTER." 
            DataKeyNames="ComputerID, ApplicationID" EnableViewState="False"
            style="border-style:dotted;border-width:thin"
            >
            <Columns>
                <asp:BoundField DataField="ApplicationID" HeaderText="Application ID" SortExpression="ApplicationID" Visible="True" />
                <asp:TemplateField HeaderText="Application Name"><ItemTemplate><%#Eval("Application.ApplicationName")%></ItemTemplate></asp:TemplateField>
                <asp:TemplateField HeaderText="Normalized Name"><ItemTemplate><%#Eval("Application.NormalizedAppName")%></ItemTemplate></asp:TemplateField>
                <asp:TemplateField HeaderText="Notes"><ItemTemplate><%#Eval("Application.NormalizedNotes")%></ItemTemplate></asp:TemplateField>
                <asp:TemplateField>
                    <HeaderTemplate>
                    </HeaderTemplate>
                    <ItemTemplate>
                        <asp:RadioButtonList SelectedValue='<%#Eval("RequirementOption")%>' ID="rblRequirementOption" RepeatDirection="Horizontal"  runat="server">
                            <asp:ListItem Value="Need Now" Text="Need Now"></asp:ListItem>
                            <asp:ListItem Value="Need Someday" Text="Need Someday"></asp:ListItem>
                            <asp:ListItem Value="Do Not Need" Text="Do Not Need"></asp:ListItem>
                        </asp:RadioButtonList>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="NormalizedNotes" HeaderText="Notes" Visible="False" />
            </Columns>
        </asp:GridView>

解决方案

What you have should work. Are you getting an error? Here's a working example copied from my current project. I'm binding to a nullable bit field - so have a hidden list item to accept the nulls.

<asp:RadioButtonList runat="server" ID="MyRbl" SelectedValue='<%# Bind("MyRblField") %>'
    CssClass="NormalTextBox" RepeatDirection="Horizontal">
    <asp:ListItem Value="false" Text="No" />
    <asp:ListItem Value="true" Text="Yes" />
    <asp:ListItem Value="" Text="" style="display: none" />
</asp:RadioButtonList>

这篇关于单选按钮列表的数据绑定使用的SelectedValue ......可能吗？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！