VB.net ComboBox 在输入时自动下拉
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VB.net ComboBox auto drop down on input
提问by Marc Intes
I want to create a ComboBox that automaitcally drops down the words containing the letter based on the input. My dropdownstyle is dropdown so the combobox has an input field.
我想创建一个 ComboBox，它会根据输入自动删除包含字母的单词。我的下拉样式是下拉，所以组合框有一个输入字段。
For example i would input the letter A or a I want the ComboBox to automatically dropdown the words which contains the letter A or a. The contents of the ComboBox are being set by myself manually.
例如，我会输入字母 A 或 a 我希望 ComboBox 自动下拉包含字母 A 或 a 的单词。ComboBox 的内容是我自己手动设置的。
Is this possible? Thanks in advance.
这可能吗？提前致谢。
采纳答案by Bibhu
You have to set these
你必须设置这些
AutoCompleteMode: SuggestAppend
AutoCompleteSource: ListItems
DropDownStyle: DropDown
Suppose your combo has these items then you have to add them to the autocompletecustomsource also
假设您的组合包含这些项目，那么您还必须将它们添加到 autocompletecustomsource 中
ComboBox1.Items.Add("10")
ComboBox1.Items.Add("92")
ComboBox1.Items.Add("9000")
ComboBox1.Items.Add("9001")
ComboBox1.AutoCompleteCustomSource.Add("10")
ComboBox1.AutoCompleteCustomSource.Add("92")
ComboBox1.AutoCompleteCustomSource.Add("9000")
ComboBox1.AutoCompleteCustomSource.Add("9001")
ComboBox1.AutoCompleteSource = AutoCompleteSource.CustomSource
回答by Karl Anderson
Yes, this is possible via the AutoCompleteModeand AutoComplete, like this:
是的，这可以通过AutoCompleteModeand 实现AutoComplete，如下所示：
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
ComboBox1.AutoCompleteMode = AutoCompleteMode.SuggestAppend
ComboBox1.AutoCompleteSource = AutoCompleteSource.CustomSource
'Add some options
ComboBox1.AutoCompleteCustomSource.Add("ABC")
ComboBox1.AutoCompleteCustomSource.Add("BCD")
ComboBox1.AutoCompleteCustomSource.Add("CDE")
End Sub
'Add ComboBox1.Text to AutoCompleteCustomSource collection when leaving ComboBox
Private Sub ComboBox1_Leave(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles ComboBox1.Leave
ComboBox1.AutoCompleteCustomSource.Add(ComboBox1.Text)
End Sub
End Class
Read AutoCompleteMode Enumerationfor more information.
阅读AutoCompleteMode 枚举以获取更多信息。
Read AutoCompleteSource Enumerationfor more information.
阅读AutoCompleteSource 枚举以获取更多信息。
