/
Index.razor
107 lines (84 loc) · 2.8 KB
/
Index.razor
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@page "/"
@inject ILocalStorageService localStorage
<h1>Hello, world!</h1>
Welcome to your new app.
<SurveyPrompt Title="How is Blazor working for you?" />
<hr class="mb-5" />
<div class="row mb-5">
<div class="col-md-4">
<h5>Add Item to local storage</h5>
<div class="input-group">
<input class="form-control" type="text" placeholder="Enter a value" @bind="@Name" />
<div class="input-group-append">
<button class="btn btn-primary" @onclick="@SaveName">Save</button>
</div>
</div>
</div>
<div class="col-md-4">
<h5>Remove item from local storage</h5>
<button class="btn btn-primary" @onclick=@RemoveName>Remove Item</button>
</div>
<div class="col-md-4">
<h5>Clear local storage</h5>
<button class="btn btn-primary" @onclick=@ClearLocalStorage>Clear All</button>
</div>
</div>
<div class="row">
<div class="col-md-4">
<h5>Value Read from local storage</h5>
@NameFromLocalStorage
</div>
<div class="col-md-4">
<h5>Items in local storage</h5>
@ItemsInLocalStorage
</div>
</div>
@code {
string NameFromLocalStorage { get; set; }
int ItemsInLocalStorage { get; set; }
string Name { get; set; }
protected override async Task OnAfterRenderAsync()
{
await GetNameFromLocalStorage();
await GetLocalStorageLength();
localStorage.Changed += (sender, e) =>
{
Console.WriteLine($"Value for key {e.Key} changed from {e.OldValue} to {e.NewValue}");
};
}
async Task SaveName()
{
await localStorage.SetItemAsync("name", Name);
await GetNameFromLocalStorage();
await GetLocalStorageLength();
Name = "";
}
async Task GetNameFromLocalStorage()
{
NameFromLocalStorage = await localStorage.GetItemAsync<string>("name");
if (string.IsNullOrEmpty(NameFromLocalStorage))
{
NameFromLocalStorage = "Nothing Saved";
}
}
async Task RemoveName()
{
await localStorage.RemoveItemAsync("name");
await GetNameFromLocalStorage();
await GetLocalStorageLength();
}
async Task ClearLocalStorage()
{
Console.WriteLine("Calling Clear...");
await localStorage.ClearAsync();
Console.WriteLine("Getting name from local storage...");
await GetNameFromLocalStorage();
Console.WriteLine("Calling Get Length...");
await GetLocalStorageLength();
}
async Task GetLocalStorageLength()
{
Console.WriteLine(await localStorage.LengthAsync());
ItemsInLocalStorage = await localStorage.LengthAsync();
}
}