如何通过变量的SqlDataSource的SelectCommand中？

问题描述

我想从code传递变量背后的SqlDataSource的SelectCommand中？

我不想使用内置的参数类型（如ControlParemeter，QueryStringParameter等）

我需要通过一个vraiable？

下面的示例不起作用

 ＆LT; ASP：SqlDataSource的ID =SqlDataSource1=服务器
    的ConnectionString =＆其中;％$的ConnectionStrings：itematConnectionString％＆gt;中
    的SelectCommand =SELECT items.name，items.id从项目INNER JOIN users_items ON items.id = users_items.id WHERE（users_items.user_id = @userId）ORDER BY users_items.date降序＆GT;
    ＆LT; SelectParameters＆GT;
    ＆LT; ASP：参数默认值=＆LT;％=用户id％＆gt;中NAME =用户id的DbType =GUID/＆GT;
    ＆LT; / SelectParameters＆GT;
 

解决方案

您总是可以像这样做的背后，code：

  SqlDataSource1.SelectParameters.Add（@用户id，用户id）;
 

修改

试试这个来代替，删除SelectCommand属性和SelectParameters：

 ＆LT; ASP：SqlDataSource的ID =SqlDataSource1=服务器
    的ConnectionString =＆LT;％$的ConnectionStrings：itematConnectionString％＆GT;＆GT;
 

然后在code背后做到这一点：

  SqlDataSource1.SelectParameters.Add（用户id，userId.ToString（））;

SqlDataSource1.SelectCommand =SELECT items.name，items.id从项目INNER JOIN users_items ON items.id = users_items.id WHERE（users_items.user_id = @userId）ORDER BY users_items.date降序
 

这工作对我来说，这也适用：

 ＆LT; ASP：SqlDataSource的ID =SqlDataSource1=服务器
    的ConnectionString =＆其中;％$的ConnectionStrings：itematConnectionString％＆gt;中
    的SelectCommand =SELECT items.name，items.id从项目INNER JOIN users_items ON items.id = users_items.id WHERE（users_items.user_id = @userId）ORDER BY users_items.date降序＆GT;＆LT; / ASP：SqlDataSource的＆GT;


SqlDataSource1.SelectParameters.Add（用户id，DbType.Guid，userId.ToString（））;
 

I want to pass variable from the code behind to SelectCommand of SqlDataSource?

I dont want to use built-in parameter types (like ControlParemeter, QueryStringParameter, etc)

I need to pass a vraiable?

the following example does not work

   <asp:SqlDataSource ID="SqlDataSource1" runat="server"
    ConnectionString="<%$ ConnectionStrings:itematConnectionString %>"
    SelectCommand = "SELECT items.name, items.id FROM items INNER JOIN users_items ON items.id = users_items.id WHERE (users_items.user_id = @userId) ORDER BY users_items.date DESC">
    <SelectParameters>
    <asp:Parameter  DefaultValue="<%= userId %>" Name="userId"  DbType="Guid" />
    </SelectParameters>

解决方案

You could always do it like this in the code behind:

SqlDataSource1.SelectParameters.Add("@userId", userId);

EDIT

Try this instead, remove the SelectCommand property and SelectParameters:

<asp:SqlDataSource ID="SqlDataSource1" runat="server"
    ConnectionString="<%$ ConnectionStrings:itematConnectionString %>">

Then in the code behind do this:

SqlDataSource1.SelectParameters.Add("userId", userId.ToString());

SqlDataSource1.SelectCommand = "SELECT items.name, items.id FROM items INNER JOIN users_items ON items.id = users_items.id WHERE (users_items.user_id = @userId) ORDER BY users_items.date DESC"

This worked for me, this also works:

<asp:SqlDataSource ID="SqlDataSource1" runat="server"
    ConnectionString="<%$ ConnectionStrings:itematConnectionString %>"
    SelectCommand = "SELECT items.name, items.id FROM items INNER JOIN users_items ON items.id = users_items.id WHERE (users_items.user_id = @userId) ORDER BY users_items.date DESC"></asp:SqlDataSource>


SqlDataSource1.SelectParameters.Add("userid", DbType.Guid, userId.ToString());

这篇关于如何通过变量的SqlDataSource的SelectCommand中？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！