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Fix/crash on network change #477

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Merged
thekiba merged 4 commits into from
Dec 12, 2025
+28 −3
Merged

Fix/crash on network change #477

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2f2e30b
fix: crash on network change when wallet is connected
jenshenJ Dec 4, 2025
d96f51b
fix: typo
jenshenJ Dec 4, 2025
96c34b8
chore: unused vars
jenshenJ Dec 4, 2025
74bf575
feat: disable network picker when wallet is connected
jenshenJ Dec 4, 2025
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16 changes: 13 additions & 3 deletions apps/demo-dapp-with-react-ui/src/components/NetworkPicker/NetworkPicker.tsx
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Original file line number Diff line number Diff line change
@@ -1,13 +1,18 @@
import { useState, useEffect } from 'react';
import { useTonConnectUI, CHAIN } from '@tonconnect/ui-react';
import { useTonConnectUI, useTonWallet, CHAIN } from '@tonconnect/ui-react';
import './style.scss';

export function NetworkPicker() {
const [tonConnectUI] = useTonConnectUI();
const wallet = useTonWallet();
const [desired, setDesired] = useState<string | undefined>(undefined);

useEffect(() => {
tonConnectUI.setConnectionNetwork(desired);
try {
tonConnectUI.setConnectionNetwork(desired);
} catch (error) {
console.warn('Cannot change network while wallet is connected:', error);
}
}, [desired, tonConnectUI]);

const handleChange = (e: React.ChangeEvent<HTMLSelectElement>) => {
Expand All @@ -16,7 +21,12 @@ export function NetworkPicker() {
};

return (
<select className="network-picker" value={desired || ''} onChange={handleChange}>
<select
className="network-picker"
value={desired || ''}
onChange={handleChange}
disabled={!!wallet}
>
<option value="">Any Network</option>
<option value={CHAIN.MAINNET}>Mainnet</option>
<option value={CHAIN.TESTNET}>Testnet</option>
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15 changes: 15 additions & 0 deletions apps/demo-dapp-with-react-ui/src/components/NetworkPicker/style.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,21 @@
box-shadow: 0 4px 16px rgba(102, 170, 238, 0.3);
}

&:disabled {
opacity: 0.7;
cursor: not-allowed;
background: linear-gradient(135deg, rgba(28, 95, 164, 0.08) 0%, rgba(102, 170, 238, 0.05) 100%);
border-color: rgba(102, 170, 238, 0.15);
color: rgba(184, 212, 241, 0.6);
box-shadow: none;

&:hover {
border-color: rgba(102, 170, 238, 0.15);
background: linear-gradient(135deg, rgba(28, 95, 164, 0.08) 0%, rgba(102, 170, 238, 0.05) 100%);
box-shadow: none;
}
}

option {
background: #1a1a1a;
color: #d9e7f7;
Expand Down