如何从Textbox获取值并将其存储在字符串中，然后从Combobox获取所有值 [英] How to get the value from Textbox and store it in string and then get all the values from Combobox

问题描述

如何从Textbox中获取值并将其存储在字符串中，然后从Combobox中获取所有值。



将文本框中的字符串与每个字符串进行比较来自Combobox的元素。



如果有人匹配那么表明它已经存在？

How do I get the value from Textbox and store it in string, and then get all the values from Combobox.

Compare the string from the Textbox with each element from the Combobox.

If anyone matches then show that it was already been there?

推荐答案

TextBox.Text 已经是串。您可以直接使用它，如

bool alreadyThere = ComboBox.Items 。包含（TextBox.Text）;

TextBox.Text is already of type string. You can use it directly as in
bool alreadyThere = ComboBox.Items.Contains(TextBox.Text);

将项目添加到组合框 [ ^ ]

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