在页面加载时停止表单post

本文关键字：表单 post 加载 | 更新日期: 2023-09-27 18:10:54

我有一个搜索功能。它搜索注册用户，当你只搜索他们的部分用户名时，它可以工作，然而，这个问题是，当你加载页面时，它基本上搜索，但搜索字符串是空的，这意味着它返回每个用户。我需要让它只在你真正搜索的时候才搜索。但我似乎不知道如何做到这一点。我想基本上我需要阻止表单在页面加载时发布。

@{
    Layout = "~/Admin/_SiteLayout.cshtml";
    var db = Database.Open("MikZeRCoding2");
    var userSearchQuery = "SELECT * FROM [Users] WHERE UserName LIKE '%' + @0 + '%'";
    var UsernameSearch = "";
    var ErrorMessage = "";
    Validation.RequireField("search-username", "lel");
    if (IsPost && Validation.IsValid()) {
        UsernameSearch = Request.Form["search-username"];
        if (UsernameSearch.IsEmpty()) {
            ErrorMessage = "You didn't search for anything.";
        }
        if (!UsernameSearch.IsEmpty() && db.QueryValue(userSearchQuery, UsernameSearch) == null) {
            ErrorMessage = "No results for '" + UsernameSearch + "' were found...";
        }
        else {
        }
    }
}
<div class="search-users">
    <h2>Search users</h2>
    <form method="post" action="">
        <div class="input-group">
            <input type="text" name="search-username" placeholder="Search for a user" class="form-control" />
            <span class="input-group-btn">
                <button class="btn btn-default glyphicon glyphicon-search" type="button"></button>
            </span>
        </div>
        <input type="submit" value="Search" />
        @foreach(var user in db.Query(userSearchQuery, UsernameSearch)) {
            <a href="@Href("~/Admin/Accounts/User", user.UserId)"><span>[ @user.UserId ]</span>  @user.UserName</a>
        }
        @if(!ErrorMessage.IsEmpty()) {
            <div class="alert alert-danger">@ErrorMessage</div>
            @Html.ValidationSummary()
        }
    </form>
</div>

提前感谢。

在页面加载时停止表单post

您可以将您的用户视图封装在IsPost -语句中;

@if(IsPost){
    foreach(var user in db.Query(userSearchQuery, UsernameSearch)) {
        <a href="@Href("~/Admin/Accounts/User", user.UserId)"><span>[ @user.UserId ]</span>  @user.UserName</a>
    }
}
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