Question

我正在寻找一种方法来为程序提供导致ContextMenuStrip打开的控件。我正在为多个组合框分配相同的条带以重复使用它们，就像在课程开始时一样。

myComboBox.ContextMenuStrip = changevaluestrip;

这里我有“添加值”和“删除值”，当然每个都必须知道哪个组合框必须删除该值。我尝试用

做

private void removeValueToolStrip_Click(object sender, EventArgs e)
{
    ToolStripMenuItem usedbox = sender as ToolStripMenuItem;
    var parent = usedbox.GetCurrentParent();
    DialogResult res = MessageBox.Show("Do you really want to delete this value?", "Delete Value", MessageBoxButtons.YesNo);
    if (res == DialogResult.Yes)
    {
        //Delete it from the combobox it was sent from
    }
}

但这并没有真正解决，只是给了我“删除价值”作为发件人......

Answer 1

也许ContextMenuStrip.SourceControl就是你想要的。

Answer 2

是的，@ KingKing是对的。您需要使用ContextMenuStrip.SourceControl来实现此目的。这是为你做的一段代码。

ToolStripMenuItem usedbox = sender as ToolStripMenuItem;
ContextMenuStrip parent = usedbox.GetCurrentParent() as ContextMenuStrip;
if (parent != null)
{
    ComboBox combo = parent.SourceControl as ComboBox;
    if (combo != null)
    { 
         //use combobox here   
    }
}

如何获得打开ContextMenuStrip的控件？

2 个答案: