如何在asp.net c＃中为dropdownlist的datavaluefield分配多个值 [英] how to assign multiple values to datavaluefield of dropdownlist in asp.net c#

问题描述

我有以下情况，



我正在使用Course_Master表，我想从中获取Course_name，Course_id和Stream。

我按以下方式将此记录绑定到下拉列表。

 DataSet ds = objExam.GetStudentPracticalSubject（Request.QueryString [  admission_id]。ToString（））; 
 ddSubject.DataSource = ds.Tables [ 0 ]; 
 ddSubject.DataTextField =   COURSE_NAME; 
 ddSubject.DataValueField =   COURSE_ID; 
 ddSubject.DataBind（）; 

上面的GetStudentPracticalSubject方法返回我的流也是，我想绑定也与dropdownlist，这样我就可以像使用属性ddSubject.SelectedValue一样传递stream。



我想知道如何使用多个DataValueField属性来实现这一点对于两个绑定值。

解决方案

解决方案：你可以做的是从SQl获取CourseID和Stream或任何数据库获取它们像'1-S'那里1是您的CourseID，S可以是您的streamID或流值。然后，您可以使用'split'函数来获取代码中的值。 ：）

I am having following scenario,

I am having Course_Master table from which I want to get Course_name,Course_id and Stream.
I bind this record to dropdownlist in the following manner.

DataSet ds = objExam.GetStudentPracticalSubject(Request.QueryString["admission_id"].ToString());
                  ddSubject.DataSource = ds.Tables[0];
                  ddSubject.DataTextField = "COURSE_NAME";
                  ddSubject.DataValueField = "COURSE_ID";
                  ddSubject.DataBind();

the above GetStudentPracticalSubject method return me Stream also, I want to bind that also with the dropdownlist, so that It is possible for me to pass stream as like courseid using the propertity ddSubject.SelectedValue.

I want to know how to achieve this with multiple DataValueField property for two binding values.

解决方案

Solution: What you can do is when you get the CourseID and Stream from SQl or any database fetch them like '1-S' where '1' is your CourseID and 'S' can be your streamID or stream value. Then you can use the 'split' function to get the value in your code. :)

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