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Merge pull request #14 from SyncfusionExamples/1007221-PostGreSample
1007221: Need to create sample for DataGrid with PostgreSQL server
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‎Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/App.razor‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<base href="/" />
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<ResourcePreloader />
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<link rel="stylesheet" href="@Assets["lib/bootstrap/dist/css/bootstrap.min.css"]" />
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<link rel="stylesheet" href="@Assets["app.css"]" />
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<link rel="stylesheet" href="@Assets["Grid_PostgreSQL.styles.css"]" />
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<link href="_content/Syncfusion.Blazor.Themes/tailwind3.css" rel="stylesheet" />
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<link href="./grid-column-template.css" rel="stylesheet" />
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<ImportMap />
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<link rel="icon" type="image/png" href="favicon.png" />
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<HeadOutlet />
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</head>
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<body>
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<Routes @rendermode="InteractiveServer"/>
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<ReconnectModal />
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<script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
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<script src="@Assets["_framework/blazor.web.js"]"></script>
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</body>
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</html>

Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Grid_PostgreSQL/Grid_PostgreSQL/Components/Layout/MainLayout.razor renamed to Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/Layout/MainLayout.razor

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@inherits LayoutComponentBase
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<div class="page">
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<div class="sidebar">
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@* <div class="sidebar">
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<NavMenu />
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</div>
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</div> *@
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<main>
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<div class="top-row px-4">
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@* <div class="top-row px-4">
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<a href="https://learn.microsoft.com/aspnet/core/" target="_blank">About</a>
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</div>
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</div> *@
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<article class="content px-4">
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@Body
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</article>
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</main>
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</div>
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<div id="blazor-error-ui">
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<div id="blazor-error-ui" data-nosnippet>
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An unhandled error has occurred.
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<a href="" class="reload">Reload</a>
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<a class="dismiss">🗙</a>
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<a href="." class="reload">Reload</a>
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<span class="dismiss">🗙</span>
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</div>

Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Grid_PostgreSQL/Grid_PostgreSQL/Components/Layout/MainLayout.razor.css renamed to Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/Layout/MainLayout.razor.css

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}
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#blazor-error-ui {
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color-scheme: light only;
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background: lightyellow;
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bottom: 0;
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box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
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box-sizing: border-box;
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display: none;
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left: 0;
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padding: 0.6rem 1.25rem 0.7rem 1.25rem;

Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Grid_PostgreSQL/Grid_PostgreSQL/Components/Layout/NavMenu.razor renamed to Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/Layout/NavMenu.razor

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<input type="checkbox" title="Navigation menu" class="navbar-toggler" />
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<div class="nav-scrollable" onclick="document.querySelector('.navbar-toggler').click()">
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<nav class="flex-column">
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<nav class="nav flex-column">
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<div class="nav-item px-3">
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<NavLink class="nav-link" href="" Match="NavLinkMatch.All">
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<span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home

Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Grid_PostgreSQL/Grid_PostgreSQL/Components/Layout/NavMenu.razor.css renamed to Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/Layout/NavMenu.razor.css

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}
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.top-row {
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height: 3.5rem;
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min-height: 3.5rem;
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background-color: rgba(0,0,0,0.4);
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}
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‎Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/Layout/ReconnectModal.razor‎

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<script type="module" src="@Assets["Components/Layout/ReconnectModal.razor.js"]"></script>
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<dialog id="components-reconnect-modal" data-nosnippet>
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<div class="components-reconnect-container">
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<div class="components-rejoining-animation" aria-hidden="true">
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<div></div>
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<div></div>
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</div>
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<p class="components-reconnect-first-attempt-visible">
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Rejoining the server...
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</p>
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<p class="components-reconnect-repeated-attempt-visible">
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Rejoin failed... trying again in <span id="components-seconds-to-next-attempt"></span> seconds.
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</p>
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<p class="components-reconnect-failed-visible">
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Failed to rejoin.<br />Please retry or reload the page.
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</p>
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<button id="components-reconnect-button" class="components-reconnect-failed-visible">
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Retry
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</button>
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<p class="components-pause-visible">
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The session has been paused by the server.
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</p>
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<button id="components-resume-button" class="components-pause-visible">
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Resume
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</button>
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<p class="components-resume-failed-visible">
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Failed to resume the session.<br />Please reload the page.
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</p>
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</div>
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</dialog>

‎Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/Layout/ReconnectModal.razor.css‎

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.components-reconnect-first-attempt-visible,
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.components-reconnect-repeated-attempt-visible,
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.components-reconnect-failed-visible,
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.components-pause-visible,
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.components-resume-failed-visible,
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.components-rejoining-animation {
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display: none;
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}
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#components-reconnect-modal.components-reconnect-show .components-reconnect-first-attempt-visible,
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#components-reconnect-modal.components-reconnect-show .components-rejoining-animation,
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#components-reconnect-modal.components-reconnect-paused .components-pause-visible,
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#components-reconnect-modal.components-reconnect-resume-failed .components-resume-failed-visible,
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#components-reconnect-modal.components-reconnect-retrying,
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#components-reconnect-modal.components-reconnect-retrying .components-reconnect-repeated-attempt-visible,
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#components-reconnect-modal.components-reconnect-retrying .components-rejoining-animation,
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#components-reconnect-modal.components-reconnect-failed,
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#components-reconnect-modal.components-reconnect-failed .components-reconnect-failed-visible {
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display: block;
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}
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#components-reconnect-modal {
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background-color: white;
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width: 20rem;
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margin: 20vh auto;
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padding: 2rem;
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border: 0;
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border-radius: 0.5rem;
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box-shadow: 0 3px 6px 2px rgba(0, 0, 0, 0.3);
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opacity: 0;
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transition: display 0.5s allow-discrete, overlay 0.5s allow-discrete;
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animation: components-reconnect-modal-fadeOutOpacity 0.5s both;
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&[open]
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{
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animation: components-reconnect-modal-slideUp 1.5s cubic-bezier(.05, .89, .25, 1.02) 0.3s, components-reconnect-modal-fadeInOpacity 0.5s ease-in-out 0.3s;
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animation-fill-mode: both;
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}
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}
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#components-reconnect-modal::backdrop {
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background-color: rgba(0, 0, 0, 0.4);
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animation: components-reconnect-modal-fadeInOpacity 0.5s ease-in-out;
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opacity: 1;
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}
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@keyframes components-reconnect-modal-slideUp {
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0% {
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transform: translateY(30px) scale(0.95);
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}
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100% {
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transform: translateY(0);
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}
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}
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@keyframes components-reconnect-modal-fadeInOpacity {
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0% {
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opacity: 0;
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}
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100% {
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opacity: 1;
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}
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}
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@keyframes components-reconnect-modal-fadeOutOpacity {
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0% {
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opacity: 1;
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}
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100% {
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opacity: 0;
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}
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}
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.components-reconnect-container {
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display: flex;
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flex-direction: column;
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align-items: center;
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gap: 1rem;
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}
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#components-reconnect-modal p {
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margin: 0;
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text-align: center;
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}
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#components-reconnect-modal button {
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border: 0;
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background-color: #6b9ed2;
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color: white;
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padding: 4px 24px;
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border-radius: 4px;
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}
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#components-reconnect-modal button:hover {
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background-color: #3b6ea2;
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}
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#components-reconnect-modal button:active {
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background-color: #6b9ed2;
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}
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.components-rejoining-animation {
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position: relative;
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width: 80px;
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height: 80px;
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}
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.components-rejoining-animation div {
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position: absolute;
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border: 3px solid #0087ff;
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opacity: 1;
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border-radius: 50%;
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animation: components-rejoining-animation 1.5s cubic-bezier(0, 0.2, 0.8, 1) infinite;
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}
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.components-rejoining-animation div:nth-child(2) {
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animation-delay: -0.5s;
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}
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@keyframes components-rejoining-animation {
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0% {
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top: 40px;
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left: 40px;
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width: 0;
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height: 0;
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opacity: 0;
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}
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4.9% {
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top: 40px;
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left: 40px;
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width: 0;
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height: 0;
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opacity: 0;
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}
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5% {
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top: 40px;
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left: 40px;
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width: 0;
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height: 0;
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opacity: 1;
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}
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100% {
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top: 0px;
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left: 0px;
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width: 80px;
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height: 80px;
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opacity: 0;
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}
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}

‎Binding PostgreSQL database using CustomAdaptor/Grid_PostgreSQL/Components/Layout/ReconnectModal.razor.js‎

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// Set up event handlers
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const reconnectModal = document.getElementById("components-reconnect-modal");
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reconnectModal.addEventListener("components-reconnect-state-changed", handleReconnectStateChanged);
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const retryButton = document.getElementById("components-reconnect-button");
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retryButton.addEventListener("click", retry);
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const resumeButton = document.getElementById("components-resume-button");
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resumeButton.addEventListener("click", resume);
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function handleReconnectStateChanged(event) {
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if (event.detail.state === "show") {
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reconnectModal.showModal();
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} else if (event.detail.state === "hide") {
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reconnectModal.close();
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} else if (event.detail.state === "failed") {
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document.addEventListener("visibilitychange", retryWhenDocumentBecomesVisible);
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} else if (event.detail.state === "rejected") {
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location.reload();
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}
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}
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async function retry() {
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document.removeEventListener("visibilitychange", retryWhenDocumentBecomesVisible);
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try {
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// Reconnect will asynchronously return:
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// - true to mean success
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// - false to mean we reached the server, but it rejected the connection (e.g., unknown circuit ID)
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// - exception to mean we didn't reach the server (this can be sync or async)
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const successful = await Blazor.reconnect();
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if (!successful) {
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// We have been able to reach the server, but the circuit is no longer available.
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// We'll reload the page so the user can continue using the app as quickly as possible.
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const resumeSuccessful = await Blazor.resumeCircuit();
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if (!resumeSuccessful) {
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location.reload();
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} else {
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reconnectModal.close();
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}
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}
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} catch (err) {
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// We got an exception, server is currently unavailable
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document.addEventListener("visibilitychange", retryWhenDocumentBecomesVisible);
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}
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}
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async function resume() {
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try {
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const successful = await Blazor.resumeCircuit();
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if (!successful) {
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location.reload();
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}
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} catch {
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location.reload();
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}
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}
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async function retryWhenDocumentBecomesVisible() {
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if (document.visibilityState === "visible") {
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await retry();
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}
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}

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