检查所选客户是否已在列表框中 [英] checking if selected customer is already in a list box

问题描述

我正在寻找有关如何检查所选客户是否已在联系人列表中的帮助。这是一个有两页的ASP.Net网站项目。我从下拉列表中选择一个客户，然后单击按钮将其添加到第二页，其中
有一个列表框。希望有人可以帮助这个vb代码。谢谢。

---

jeff allen

I am looking for help on how to check if a selected customer is already in a list of contacts. This is an ASP.Net website project with two pages. I am choosing a customer from a dropdown list and then clicking a button to add it to the second page which has a listbox. Hope someone can help with this vb code. Thanks.

---

jeff allen

推荐答案

请参阅 asp.net论坛，以便在您的问题上获得更好的帮助。

Please refer asp.net forums for a better assistance on your question.

这篇关于检查所选客户是否已在列表框中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！