Querry模式的实现 [英] implementation of querry pattern

问题描述

这是我的代码，其中有错误
找不到Querry模式的实现

here is my code in which there is an error
could not find the implementation of querry pattern

var menuItem = (from item in menuStrip1.items
                where item is ToolStripMenuItem && item.Text == s1
                select item).FirstOrDefault();
if (menuItem != null)
{
    menuItem.Visible = true;
}

[edit]已添加代码块，忽略HTML ..."选项已禁用-OriginalGriff [/edit]

[edit]Code block added, "Ignore HTML..." option disabled - OriginalGriff[/edit]

推荐答案

ToolStripItemCollection不支持WHERE查询:尝试这样做而是使用foreach循环.

ToolStripItemCollection does not support the WHERE query: try doing it with a foreach loop instead.

尝试一下，

Try this,

public void SetVisibility(string menuItemText)
{
    foreach (ToolStripMenuItem menuItem in menuStrip1.Items)
    {
        if (menuItem.Text == menuItemText){
            menuItem.Visible = true;
            break;  
        }      
    }
}

:)

:)

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