我有一位来自该数据库的数据的独任专家。 数据来源于<代码>Dictionary<int, string>,并按以下方式分类。
//...
Courses = new SelectList(GetCourses(),"Key","Value");
//...
综上所述,它从数据库中显示第一个记录,因为缺省选择了降幅值。 我愿明确这一价值,把下降空出,以便用户能够人工选择价值。 如有可能,不使用javascript。
//I have this on the view
<%= Html.DropDownListFor(model => model.CourseID, Model.Courses) %>
请帮助!
http://msdn.microsoft.com/en-us/library/ee703561.aspx”rel=“noreferer” a) 采用一种选择的超载:
<%= Html.DropDownListFor(model => model.CourseID, Model.Courses, string.Empty) %>
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