MvcContrib网格和复选框

Question

让我说我渲染一个复选框:

@Html.CheckboxFor(x => x.Checked) // Checked is true by default

ASP将把它变为:

<input checked="checked" data-val="true" data-val-required="The field is required." id="Checked" name="Checked" type="checkbox" value="true" />
<input name="Checked" type="hidden" value="false" />

由于ASP为Checkbox输出两个具有相同名称的输入,因此在使用复选框提交表单时,我们在URL中也会获得两个GET参数:

http://...?Checked=true&Checked=false

可以说我也在使用MvcContrib来显示带有排序的表.

当我对列进行排序时,MvcContrib无法理解重复的GET参数,而是写入?Checked=true&Checked=false,而不是写入,?Checked=true%2CfalseMVC3无法将其解析为bool.排序后的错误消息是:

String was not recognized as a valid Boolean.

有没有其他人在MvcContrib网格中遇到过这个问题？

Answer 1

好吧，我想我已经想出了解决方案：

创建您自己的 HtmlTableGridRenderer：

public class CustomTableGridRenderer<TViewModel> : HtmlTableGridRenderer<TViewModel> where TViewModel : class
{
    protected override void RenderHeaderText(GridColumn<TViewModel> column)
    {
        if (IsSortingEnabled && column.Sortable)
        {
            string sortColumnName = GenerateSortColumnName(column);

            bool isSortedByThisColumn = GridModel.SortOptions.Column == sortColumnName;

            var sortOptions = new GridSortOptions
            {
                Column = sortColumnName
            };

            if (isSortedByThisColumn)
            {
                sortOptions.Direction = (GridModel.SortOptions.Direction == SortDirection.Ascending)
                    ? SortDirection.Descending
                    : SortDirection.Ascending;
            }
            else //default sort order
            {
                sortOptions.Direction = column.InitialDirection ?? GridModel.SortOptions.Direction;
            }

            var routeValues = CreateRouteValuesForSortOptions(sortOptions, GridModel.SortPrefix);

            //Re-add existing querystring
            foreach (var key in Context.RequestContext.HttpContext.Request.QueryString.AllKeys.Where(key => key != null))
            {
                if (!routeValues.ContainsKey(key))
                {
                    routeValues[key] = Context.RequestContext.HttpContext.Request.QueryString[key];
                }
            }

            var link = HtmlHelper.GenerateLink(Context.RequestContext, RouteTable.Routes, column.DisplayName, null, null, null, routeValues, null);
            RenderText(link);
        }
        else
        {
            base.RenderHeaderText(column);
        }
    }
}

...然后更换

                if(! routeValues.ContainsKey(key))
                {
                    routeValues[key] = Context.RequestContext.HttpContext.Request.QueryString[key];
                }

... 和routeValues[key] = Context.RequestContext.HttpContext.Request.QueryString[key];

并像这样使用新的渲染：

@Html.Grid()...RenderUsing(new CustomTableGridRenderer())