如何设置AutoCompleteExtender允许从自动完成列表仅值? [英] How to set AutoCompleteExtender to allow only values from autocompletion list?
本文介绍了如何设置AutoCompleteExtender允许从自动完成列表仅值?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
是否有人知道如何使用AutoCompleteExtender(从AJAX控件工具包)prevent用户进入任何不建议值?
Does anybody know how using AutoCompleteExtender (from AJAX Control Toolkit) prevent user from entering anything not in suggested values?
推荐答案
像这样的东西可以帮助你。
Something like this can help you
Javascript的
Javascript
<script type="text/javascript">
var isItemSelected = false;
//Handler for AutoCompleter OnClientItemSelected event
function onItemSelected() {
isItemSelected = true;
}
//Handler for textbox blur event
function checkItemSelected(txtInput) {
if (!isItemSelected) {
alert("Only choose items from the list");
txtInput.focus();
}
}
</script>
ASPX
ASPX
<asp:Button onblur="checkItemSelected(this)" ../>
<ajax:AutoCompleteExtender OnClientItemSelected="onItemSelected" ../>
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