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[英]Linq with MySQL database in ASP.NET MVC 3, storing DateTime into variable
[英]ASP.NET Core MVC storing image to database
我開始學習ASP.NET Core MVC,並且對將圖像存儲到數據庫有一些疑問。 到目前為止,我的代碼在這里。
詳細模型
using LibaryData.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace LibaryManagmentSystems.Models.Catalog
{
public class AssetDetailModel
{
public int AssetID { get; set; }
public string Title { get; set; }
public string AuthorOrDirector { get; set; }
public string Type { get; set; }
public int Year { get; set; }
public string ISBN { get; set; }
public string DeweyCallNumber { get; set; }
public string Status { get; set; }
public decimal Cost { get; set; }
public string CurrentLocation { get; set; }
public string ImageURL { get; set; }
public int PatronName { get; set; }
public Checkout LatestChechout { get; set; }
public IEnumerable<CheckoutHistory> CheckoutHistory { get; set; }
public IEnumerable<AssetHoldModel> CurrentHolds { get; set; }
}
public class AssetHoldModel
{
public string PatronName { get; set; }
public string HoldPlace { get; set; }
}
}
Detail.cshtml
@model LibaryManagmentSystems.Models.Catalog.AssetDetailModel
<div class ="container">
<div class="page-header clearfix detailHeading"></div>
<h2 class="text-muted">View Libary Item </h2>
</div>
<div class="jumbotron">
<div class="row">
<div class="col-md-4">
<div>
<img class="detailImage" src="@Model.ImageURL" />
</div>
</div>
<div class="col-md-4">
<div>
<p id="itemTitle">@Model.Title</p>
<p id="itemAuthor">@Model.AuthorOrDirector</p>
<p id="itemStatus">@Model.Status</p>
<p id="itemType">@Model.Type</p>
<p id="itemLocation">@Model.CurrentLocation</p>
@if (Model.Status == "Lost")
{
<p>This item has been lost. It cannot be checked out</p>
<p><a class="btn btn-lg btn-danger" role="button" asp-controller="Catalog" asp-action="MarkFound" asp-route-id="@Model.AssetID">Mark Item Found</a></p>
}
@if (Model.Status == "Checked OUt")
{
<p id="itemPatron">Checked Out by: @Model.PatronName</p>
<p><a class="btn btn-lg btn-success" role="button" asp-controller="Catalog" asp-action="CheckIn" asp-route-id="@Model.AssetID">Check In</a></p>
<p><a class="btn btn-lg btn-warning" role="button" asp-controller="Catalog" asp-action="Hold" asp-route-id="@Model.AssetID">Place Hold</a></p>
}
@if (Model.Status == "Available")
{
<p><a class="btn btn-lg btn-info" role="button" asp-controller="Catalog" asp-action="Checkout" asp-route-id="@Model.AssetID">Check Out</a></p>
}
</div>
<div class="col-md-4 detailInfo">
<table>
<tr>
<td class="itemLabel">ISBN:</td>
<td class="itemValue">@Model.ISBN</td>
</tr>
<tr>
<td class="itemLabel">Call Number:</td>
<td class="itemValue">@Model.DeweyCallNumber</td>
</tr>
<tr>
<td class="itemLabel">Replacement Cost:</td>
<td class="itemValue">@Model.Cost</td>
</tr>
</table>
</div>
</div>
</div>
</div>
然后在數據庫中創建一個fild,將其命名為ImageURL,我將過去的地址保存在文件夾目錄中,並將圖像文件夾保存到C:\\ Desktop \\ LMS \\ images \\ emma.jpg
當我運行應用程序時,我得到這樣的圖片
到目前為止有什么幫助嗎?
Index.cshtml
@model LibaryManagmentSystems.Models.Catalog.AssetIndexModel
<div id="assets">
<h3>Libary Catalog</h3>
<div id="assetsTable">
<table class="table table-condensed" id="catalogIndexTable">
<thead>
<tr>
<th>Image</th>
<th>Title</th>
<th>Author / Director</th>
<th>Dew Call Number</th>
</tr>
</thead>
<tbody>
@foreach (var asset in Model.Assets)
{
<tr class="assetRow">
<td class="">
<a asp-controller="Catalog" asp-action="Detail" asp-route-id="@asset.Id">
<img src="@asset.ImageUrl" class="imageCell" />
</a>
</td>
<td class="">@asset.Title</td>
<td class="">@asset.AuthorOrDirector</td>
<td class="">@asset.DeweyCallNumber</td>
</tr>
}
</tbody>
</table>
</div>
</div>
問題出在wwwrote文件中的.css文件。 我刪除它並再次創建,它可以工作。 並將圖像插入wwwroot / images目錄中,它將起作用
body {
padding-top: 50px;
padding-bottom: 20px;
}
/* Wrapping element */
/* Set some basic padding to keep content from hitting the edges */
.body-content {
padding-left: 15px;
padding-right: 15px;
}
/* Carousel */
.carousel-caption p {
font-size: 20px;
line-height: 1.4;
}
/* Make .svg files in the carousel display properly in older browsers */
.carousel-inner .item img[src$=".svg"] {
width: 100%;
}
/* QR code generator */
#qrCode {
margin: 15px;
}
/* Hide/rearrange for smaller screens */
@media screen and (max-width: 767px) {
/* Hide captions */
.carousel-caption {
display: none;
}
}
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