如何使用 LINQ 查找 DataGridView 行? [英] How can I use LINQ to find a DataGridView row?

问题描述

有没有办法使用 LINQ 样式查询来查找 DataGridView 行?我试图找到绑定到特定对象的那个并突出显示它.

MyDatagrid.Rows.FirstOrDefault(r => r.DataBoundItem == myItem).Selected = true;

<块引用>

错误 1 ​​'System.Windows.Forms.DataGridViewRowCollection' 不包含 'FirstOrDefault' 的定义，并且找不到接受类型为 'System.Windows.Forms.DataGridViewRowCollection' 的第一个参数的扩展方法 'FirstOrDefault'(是您是否缺少 using 指令或程序集引用?)

解决方案

You need to cast to IEnumerable 因为DataGridViewRowCollection 只实现了 IEnumerable代码>:

MyDatagrid.Rows.Cast().FirstOrDefault(r => r.DataBoundItem == myItem).Selected = true;

Is there any way to use a LINQ style query to find a DataGridView row? I am trying to find the one bound to a specific object and highlight it.

MyDatagrid.Rows.FirstOrDefault(r => r.DataBoundItem == myItem).Selected = true;

Error 1 'System.Windows.Forms.DataGridViewRowCollection' does not contain a definition for 'FirstOrDefault' and no extension method 'FirstOrDefault' accepting a first argument of type 'System.Windows.Forms.DataGridViewRowCollection' could be found (are you missing a using directive or an assembly reference?)

解决方案

You need to cast to IEnumerable<DataGridViewRow> since DataGridViewRowCollection only implements IEnumerable:

MyDatagrid.Rows
    .Cast<DataGridViewRow>()
    .FirstOrDefault(r => r.DataBoundItem == myItem).Selected = true;

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