我已经使用以下 asp.net 和 C# 代码让 Ajax 工具包自动完成工作。
<form id="form1" runat="server">
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<div>
Search our Languages: <asp:TextBox ID="txtLanguage" runat="server"></asp:TextBox>
<asp:AutoCompleteExtender ID="AutoCompleteExtender1" runat="server"
TargetControlID="txtLanguage" MinimumPrefixLength="1"
ServiceMethod="GetCompletionList" UseContextKey="True">
</asp:AutoCompleteExtender>
<br />
<br />
<asp:Button ID="btnAddSelected" runat="server" Text="Add to chosen Languages >"
onclick="btnAddSelected_Click" />
<br />
<br />
<asp:Label ID="lblSelectedLanguages" runat="server" Text=""></asp:Label>
</div>
</form>
这是我的 C# 代码:
[System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
public static string[] GetCompletionList(string prefixText, int count, string contextKey)
{
// Create array of languages.
string[] languages = { "Afrikaans", "Albanian", "Amharic", "Arabic", "Azerbaijani", "Basque", "Belarusian", "Bengali", "Bosnian", "Bulgarian" };
// Return matching languages.
return (from l in languages where l.StartsWith(prefixText, StringComparison.CurrentCultureIgnoreCase) select l).Take(count).ToArray();
}
protected void btnAddSelected_Click(object sender, EventArgs e)
{
lblSelectedLanguages.Text += txtLanguage.Text += ", ";
}
单击按钮时，所选语言将添加到标签中，但是我想删除该按钮，并使用 Ajax 工具包中的部分回发，将自动完成中的所选项目自动添加到标签中。
有人可以建议我如何实现这一目标吗？
谢谢。
最佳答案
- 处理 AutoCompleteExtender 控件上的
OnClientItemSelected以运行 JavaScript 函数 - JavaScript 所做的只是在做出选择时触发 TextChanged 事件(适用于 Enter 和左键单击)
ASPX:
<head runat="server">
<title></title>
<script type="text/javascript">
function ItemSelected(sender, args) {
__doPostBack(sender.get_element().name, "");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
Search our Languages:
<asp:TextBox ID="txtLanguage" autocomplete="off" runat="server" OnTextChanged="TextChanged" />
<asp:AutoCompleteExtender OnClientItemSelected="ItemSelected" ID="AutoCompleteExtender1"
runat="server" TargetControlID="txtLanguage" MinimumPrefixLength="1" ServiceMethod="GetCompletionList"
UseContextKey="True">
</asp:AutoCompleteExtender>
<br />
<asp:Label ID="lblSelectedLanguages" runat="server"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
</form>
</body>
隐藏代码:
protected void TextChanged(object sender, EventArgs e)
{
lblSelectedLanguages.Text += txtLanguage.Text += ", ";
}
关于c# - 如何将 asp.net ajax 工具箱自动完成中的选定值添加到标签？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14519311/