[英]What is the file path for image resources when you add them during package and deploy in Visual Studio?
我制作了一个 html 文件，输出了我的 C# 申请的收据。 在 html 报告中，我在收据顶部有一个徽标。 该图像位于调试文件夹中，当我运行它进行调试时它工作正常。
但是，当我 package 并部署我的应用程序时，收据丢失了图像。 我在 package 和部署时将图像添加为资源，所以我知道它在那里。 我假设我需要输入完整路径才能访问图像。
但是，我不知道我们 package 和部署时的路径是什么。 我们package时添加的图片资源和安装应用时deploy存储的图片资源在哪里？
这是我的 function，它创建了我的 html 文件。 我把图像源放在哪里，我需要放什么才能在我调试和部署 package 时显示徽标？
private StringBuilder GenerateReport()
{
StringBuilder html = new StringBuilder();
StringBuilder css = new StringBuilder();
try
{
// CSS is a way to style the HTML page. Each HTML tag can be customized.
// In this example, the H1 and TD tags are customized.
// Refer to this website for examples: https://www.w3schools.com/Css/css_syntax.asp
css.AppendLine("<style>");
css.AppendLine("td {padding: 5px; text-align:center; font-weight: bold; text-align: center; font-size: 12px;}");
css.AppendLine("h1 {color: orange;}");
css.AppendLine("</style>");
// HTML is used to format the layout of a webpage. This will be the frame
// we use to place our data in. CSS is used to style the page to look a
// certain way.
// The <HTML> and </HTML> tags are the start and end of a webpage.
// The <HEAD> and </HEAD> tags gives information about the webpage
// such as the title and if there is any CSS styles being used.
// The text between the <TITLE> and </TITLE> tags are used by the
// browser to display the name of the page.
// <BODY> and </BODY> is where the data of the page is stored
// <H1> and </H1> is the largest font size for headings. These
// can be from H1 to H6. H6 is the smallest font. https://www.w3schools.com/tags/tag_hn.asp
html.AppendLine("<html>");
css.AppendLine("<center {display: block;margin - left: auto;margin - right: auto;width: 50 %;}</center>");
html.AppendLine($"<head>{css}<title>{"Receipt"}</title></head>");
//css.AppendLine("<left {display: block;margin - left: auto;margin - right: auto;width: 50 %;}</left>");
html.Append("<img src= Debug\\hunting.jpg style=' align: center; width: 75px; height: 50px;'>");
html.AppendLine("<body>");
html.AppendLine($"<h1>{" Order Receipt"}</h1>");
html.Append($"<br></br>");
html.Append($"<p style = 'text-indent: -550px; font-size: 15px'><b>{"Customer: " + strFirstName + " " + strLastName}</b></p>");
html.Append($"<p style = 'text-indent: -550px; font-size: 15px'><b>{"Order Number: " + strMaxOrderID}</b></p>");
html.Append($"<p style = 'text-indent: -550px; font-size: 10px'><b>{"Phone Number: " + strPhoneNumber}</b></p>");
// Create table of data
// <TABLE> and </TABLE> is the start and end of a table of rows and data.
// <TR> and </TR> is one row of data. They contain <TD> and </TD> tags.
// <TD> and </TD> represents the data inside of the table in a particular row.
// https://www.w3schools.com/tags/tag_table.asp
// I used an <HR /> tag which is a "horizontal rule" as table data.
// You can "span" it across multiple columns of data.
html.AppendLine("<table>");
html.AppendLine("<tr><td>Item Name</td><td>Quantity</td><td>Price</td></tr>");
html.AppendLine("<tr><td colspan=3><hr /></td></tr>");
for (int i = 0; i < lstShoppingCartName.Count; i++)
{
html.Append("<tr>");
html.Append($"<td>{lstShoppingCartName[i]}</td>");
html.Append($"<td>{lstShoppingCartQuantity[i]}</td>");
html.Append($"<td>{lstShoppingCartCost[i]}</td>");
html.Append("</tr>");
html.AppendLine("<tr><td colspan=4><hr /></td></tr>");
}
html.AppendLine("</table>");
html.Append($"<br></br><br></br>");
html.Append($"<p style = 'align:center; text-indent: 390px; font-size: 15px '><b>{"SubTotal: " + decSubTotal.ToString("C2")}</b></p>");
html.Append($"<p style = 'align:center; text-indent: 371px; font-size: 15px '><b>{"Discount Percent: " + decDiscountPercent.ToString("N3")}</b></p>");
html.Append($"<p style = 'align:center; text-indent: 422px; font-size: 15px '><b>{"Discount: " + decDiscount.ToString("C2")}</b></p>");
html.Append($"<p style = 'align:center; text-indent: 297px; font-size: 15px '><b>{"SubTotal After Discount: " + decSubTotalDiscount.ToString("C2")}</b></p>");
html.Append($"<p style = 'align:center; text-indent: 430px; font-size: 15px '><b>{"Taxes: " + decTaxes.ToString("C2")}</b></p>");
html.Append($"<p style = 'align:center; text-indent: 450px; font-size: 20px ' ><b>{"Total: " + decTotal.ToString("C2")}</b></p>");
html.Append($"<div><button onClick='window.print()'> {"Print this page"}</ button ></ div >");
html.AppendLine("</body></html>");
}
catch(Exception ex)
{
MessageBox.Show(message + ex.Message, "Program Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return html; // The returned value has all the HTML and CSS code to represent a webpage
}
如果您的徽标不是一个巨大的图像文件，您可以使用 Base64 编码将其直接设置到标记中，将图像转换为字符串，以代替路径使用。
您可以使用这样的在线服务将徽标转换为 Base64 字符串
然后通过这种方式将其添加到您的 HTML output
<img src="data:image/png;base64,#past here your image encoded text#">
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