MVC 3的WebGrid - 你怎么隐藏列你不想可见？ [英] MVC 3 Webgrid - how do you hide columns you do not want to be visible?

问题描述

我有一个的WebGrid，有一个专栏中，我想是可见的只有特定的用户。
目前，我有codeD电网如下：

I have a webgrid and there is a column I want to be visible only to certain users. Currently I have coded the grid as follows

if (Context.User.IsInRole(Role.Inputter) || Context.User.IsInRole(Role.Administrator))
{
    @grid.GetHtml(columns: grid.Columns(
        grid.Column(format: (item) => Html.ActionLink("Select", "Details", new { contractId = item.ContractId })),
        grid.Column(format: (item) => Html.ActionLink("Edit", "Edit", new { contractId = item.ContractId })),
        grid.Column("SignOffDate", "Sign Off Date",
            format: @<text> <span>@item.SignOffDate.ToString("d/M/yyyy")</span></text>),
        grid.Column("FullContractNumber", "Contract Number"),
        grid.Column("ContractTitle", "Title")
    ));
}
else
{ 
    @grid.GetHtml(columns: grid.Columns(
        grid.Column(format: (item) => Html.ActionLink("Select", "Details", new { contractId = item.ContractId })),
        grid.Column("SignOffDate", "Sign Off Date",
            format: @<text> <span>@item.SignOffDate.ToString("d/M/yyyy")</span></text>),
        grid.Column("FullContractNumber", "Contract Number"),
        grid.Column("ContractTitle", "Title")
    ));
}

但肯定有不重复所有code更好的办法？
2列输入端之间的唯一区别是，我想要显示的编辑链接particlaur用户。那么，什么是这样做的最好的替代方法？

But surely there is a better way without repeating all that code? The only difference between the 2 column inputs is that I want to display the Edit link for particlaur users. So what is the best alternative way of doing that?

推荐答案

尝试这样的（未经测试，不具备在瞬间获得VS）：

Try like this (untested, don't have access to VS at the moment):

@{
    var gridColumns = new List<WebGridColumn>();
    gridColumns.Add(grid.Column(format: (item) => Html.ActionLink("Select", "Details", new { contractId = item.ContractId })));
    if (Context.User.IsInRole(Role.Inputter) || Context.User.IsInRole(Role.Administrator))
    {
        gridColumns.Add(grid.Column(format: (item) => Html.ActionLink("Edit", "Edit", new { contractId = item.ContractId })));
    }
    gridColumns.Add(grid.Column("SignOffDate", "Sign Off Date", format: @<text> <span>@item.SignOffDate.ToString("d/M/yyyy")</span></text>));
    gridColumns.Add(grid.Column("FullContractNumber", "Contract Number"));
    gridColumns.Add(grid.Column("ContractTitle", "Title"));
}

@grid.GetHtml(columns: grid.Columns(gridColumns.ToArray()));

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