muddatagrid - 以编程方式访问过滤记录

Question

我有一个像这样的 muddatagrid，它有过滤器，我可以过滤它。如何以编程方式获取过滤后的记录？

<MudDataGrid Items="@Elements" @ref="dg" Filterable="true" FilterCaseSensitivity=DataGridFilterCaseSensitivity.CaseInsensitive>
    <Columns>
        
       <Column T="RequestInfo" Field="RequestId" Title="Request ID" />
       <Column T="RequestInfo" Field="ProjectName" Title="Project Name" />
       <Column T="RequestInfo" Field="RequestCreatedBy"   Title="Created By" />
      
    </Columns>
   <NoRecordsContent>
        <MudText>No matching records found</MudText>
    </NoRecordsContent>
    <PagerContent>
        <MudDataGridPager T="RequestInfo" />
    </PagerContent>
</MudDataGrid>


@code
{
     MudDataGrid<RequestInfo> dg;

 private async Task somefunction()
    {
       //this function is invoked after pressing a button in the page and all the filters have been applied.

        List<RequestInfo> ll = dg.FilteredItems as List<RequestInfo>;
       
  
      
    }
}

此函数始终返回 0 个项目。如何以编程方式仅查看过滤后的项目？

Answer 1

当您应用过滤器时，dg.FilteredItems 可能不是 List。代替... as List<RequestInfo>，在上面调用.ToList()：

@code
{
    MudDataGrid<RequestInfo> dg;

    private async Task somefunction()
    {
        List<RequestInfo> ll = dg.FilteredItems.ToList();
        ...
    }
}