c# - string.Format exception Input string was not in a correct format -

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i received following error string.format(...) operation:

system.formatexception - input string not in correct format.

i have resource dictionary contains entry basic html page.

<!doctype html> <html> <head>     <meta charset="utf-8">     <title>title of document</title>      <style>         * {              margin: 0;              padding: 0;          }          body {              font-family: 'arial, verdana', fallback, sans-serif;              font-size: 14px;         }          table {              background-color: #eeeeee;              width: 100%;              padding: 10px;             margin: 5px;         }          h1 {             font-size: 16px;             font-weight: bold;             margin: 20px 0 10px 0;         }     </style> </head>  <body>     text<br />      <table>         <tr>             <td>text 1</td>             <td>{0}</td>         </tr>         <tr>             <td>text 2</td>             <td>{1}</td>         </tr>         <tr>             <td>text 3</td>             <td>{2}</td>         </tr>         <tr>             <td>text 4</td>             <td>{3}</td>         </tr>         <tr>             <td>text 5</td>             <td>{4}</td>         </tr>         <tr>             <td>text 6</td>             <td>{5}</td>         </tr>         <tr>             <td>text 7</td>             <td>{6}</td>         </tr>     </table>     <br />      <h1>header1</h1>      <table>         <tr>             <td><a href="http://www.google.com">http://www.google.com</a></td>         </tr>         <tr>             <td>text 8: {7}</td>         </tr>     </table>     <br /> </body>

the string.format(...) operations looks this:

var emailhtml = string.format(                     webutility.htmlencode(emailresource.emailtemplate),                     "text1",                     "text2",                     "text3",                     "text4",                     "text5",                     "text6",                     "text7",                     "text8");

does know error made? isn't possible fill in placeholders in resource dictionary this?

you have lot of curly braces not format specifiers, example:

    {          margin: 0;          padding: 0;      }

either need duplicate them:

    {{         margin: 0;          padding: 0;      }}

or using different formatting approach (like template engine).


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