public static async Task <IActionResult> ToDataSourceJsonResultAsync <T>(this IQueryable <T> source, GridCriteria criteria) where T : class
{
if (criteria.PostFilters != null && criteria.PostFilters.Count > 0)
{
foreach (var item in criteria.PostFilters)
{
source = source.Where(item.Field, item.Value, item.Operator);
}
}
var count = await source.CountAsync();
if (!string.IsNullOrEmpty(criteria.SortBy))
{
source = source.OrderBy(criteria.SortBy, criteria.SortDirection);
}
List <T> items;
if (criteria.PaginationEnabled)
{
items = await source.Skip(criteria.Offset).Take(criteria.Limit).ToListAsync();
}
else
{
items = await source.ToListAsync();
}
return(new JsonResult(new { TotalCount = count, Data = items }));
}
public static IHtmlContent DataGrid(this IHtmlHelper htmlHelper, string name, string dataSourceUrl, List <GridColumn> columns, GridCriteria criteria = null)
{
criteria = criteria ?? new GridCriteria();
var htmlBuilder = new HtmlContentBuilder();
htmlBuilder.AppendHtmlLine("<script>");
htmlBuilder.AppendHtmlLine("$(function(){");
htmlBuilder.AppendHtmlLine($"$('#{name}').dataGridBind('{dataSourceUrl}',{JsonConvert.SerializeObject(criteria)},{JsonConvert.SerializeObject(columns)});");
htmlBuilder.AppendHtmlLine("});");
htmlBuilder.AppendHtmlLine("</script>");
return(htmlBuilder);
}
