我在视图中使用以下代码,并且我尝试使用附加参数在末尾添加withdraw链接,但是我收到以下错误:
System.ArgumentException:参数字典包含'MaxMe2中方法'System.Web.Mvc.ActionResult Withdraw(Int32,Int32)'的非可空类型'System.Int32'的参数'personID'的空条目。 Controllers.TeamController”。可选参数必须是引用类型,可空类型,或者声明为可选参数。
<% if(Model.departmentsDisplayCheck) {%>
<table>
<tr>
<th>Name</th>
<th>Type</th>
<th>Status</th>
</tr>
<% foreach (var dep in Model.departmentsList){ %>
<tr>
<td><%: Html.ActionLink(dep.Name, "Details", "Department", new { id=dep.DepartmentID}, null) %></td>
<td><%: dep.DepartmentType.Type %></td>
<td><%: dep.DepartmentStatus.Status %></td>
<td><%: Html.ActionLink("Withdraw", "Withdraw", "Team", new { id = Model.personalInfo.PersonID, dep = dep.DepartmentID}, null)%></td>
</tr>
<% } %>
我试图调用的控制器方法是:
public ActionResult Withdraw(int personID, int departmentID)
{
.....
}
我该如何使这项工作?提前谢谢!
答案 0 :(得分:6)
您的参数名称与操作链接发送的名称不匹配。试试这样:
public ActionResult Withdraw(int id, int dep)
或更新您的ActionLink参数名称以匹配操作的名称:
<%= Html.ActionLink(
"Withdraw",
"Withdraw",
"Team",
new {
personID = Model.personalInfo.PersonID,
departmentID = dep.DepartmentID
},
null
) %>
然后:
public ActionResult Withdraw(int personID, int departmentID)
将会起作用。