TcomboBox每一项是个类
TcomboBox.Items[1]
{k634}
_CNum: "634"
_SignID: 6873
_Type: "k"
cNum: "634"
Otype: "k"
SignID: 6873
然后用了Contains查找 ,结果 Console.WriteLine(TcomboBox.ToString().Contains("k634"));
Console.WriteLine(TcomboBox.ValueMember.Contains("k634"));
Console.WriteLine(TcomboBox.DisplayMember.Contains("k634"));
Console.WriteLine(TcomboBox.Items.ToString().Contains("k634"));
Console.WriteLine(TcomboBox.Items.Contains("k634"));全是False为什么查不到呢?
TcomboBox.Items[1]
{k634}
_CNum: "634"
_SignID: 6873
_Type: "k"
cNum: "634"
Otype: "k"
SignID: 6873
然后用了Contains查找 ,结果 Console.WriteLine(TcomboBox.ToString().Contains("k634"));
Console.WriteLine(TcomboBox.ValueMember.Contains("k634"));
Console.WriteLine(TcomboBox.DisplayMember.Contains("k634"));
Console.WriteLine(TcomboBox.Items.ToString().Contains("k634"));
Console.WriteLine(TcomboBox.Items.Contains("k634"));全是False为什么查不到呢?
是检查不到的,你试着调试一下TcomboBox.Items都有哪些值,可以监视里看到的。