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Bump version to 5.0.0-alpha1 (#29925)
Also add v4.5.0 in versions and keep README.md pointing to v4.5.0 so that there are no broken stuff.
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---
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layout: docs
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title: Form controls
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description: Give textual form controls like `<input>`s and `<textarea>`s an upgrade with custom styles, sizing, focus states, and more.
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group: forms
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toc: true
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---
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## Example
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{{< example >}}
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<div class="mb-3">
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<label for="exampleFormControlInput1" class="form-label">Email address</label>
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<input type="email" class="form-control" id="exampleFormControlInput1" placeholder="name@example.com">
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</div>
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<div class="mb-3">
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<label for="exampleFormControlTextarea1" class="form-label">Example textarea</label>
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<textarea class="form-control" id="exampleFormControlTextarea1" rows="3"></textarea>
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</div>
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{{< /example >}}
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## Sizing
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Set heights using classes like `.form-control-lg` and `.form-control-sm`.
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{{< example >}}
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<input class="form-control form-control-lg" type="text" placeholder=".form-control-lg" aria-label=".form-control-lg example">
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<input class="form-control" type="text" placeholder="Default input" aria-label="deafult input example">
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<input class="form-control form-control-sm" type="text" placeholder=".form-control-sm" aria-label=".form-control-sm example">
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{{< /example >}}
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## Readonly
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Add the `readonly` boolean attribute on an input to prevent modification of the input's value. Read-only inputs appear lighter (just like disabled inputs), but retain the standard cursor.
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{{< example >}}
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<input class="form-control" type="text" placeholder="Readonly input here..." aria-label="readonly input example" readonly>
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{{< /example >}}
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## Readonly plain text
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If you want to have `<input readonly>` elements in your form styled as plain text, use the `.form-control-plaintext` class to remove the default form field styling and preserve the correct margin and padding.
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{{< example >}}
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<div class="mb-3 row">
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<label for="staticEmail" class="col-sm-2 col-form-label">Email</label>
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<div class="col-sm-10">
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<input type="text" readonly class="form-control-plaintext" id="staticEmail" value="email@example.com">
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</div>
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</div>
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<div class="mb-3 row">
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<label for="inputPassword" class="col-sm-2 col-form-label">Password</label>
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<div class="col-sm-10">
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<input type="password" class="form-control" id="inputPassword">
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</div>
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</div>
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{{< /example >}}
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{{< example >}}
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<form class="row g-3">
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<div class="col-auto">
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<label for="staticEmail2" class="sr-only">Email</label>
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<input type="text" readonly class="form-control-plaintext" id="staticEmail2" value="email@example.com">
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</div>
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<div class="col-auto">
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<label for="inputPassword2" class="sr-only">Password</label>
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<input type="password" class="form-control" id="inputPassword2" placeholder="Password">
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</div>
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<div class="col-auto">
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<button type="submit" class="btn btn-primary mb-3">Confirm identity</button>
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</div>
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</form>
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{{< /example >}}
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## Color
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{{< example >}}
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<label for="exampleColorInput" class="form-label">Color picker</label>
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<input type="color" class="form-control form-control-color" id="exampleColorInput" value="#563d7c" title="Choose your color">
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{{< /example >}}
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## Datalists
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Datalists allow you to create a group of `<option>`s that can be accessed (and autocompleted) from within an `<input>`. These are similar to `<select>` elements, but come with more menu styling limitations and differences. While most browsers and operating systems include some support for `<datalist>` elements, their styling is inconsistent at best.
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Learn more about [support for datalist elements](https://caniuse.com/#feat=datalist).
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{{< example >}}
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<label for="exampleDataList" class="form-label">Datalist example</label>
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<input class="form-control" list="datalistOptions" id="exampleDataList" placeholder="Type to search...">
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<datalist id="datalistOptions">
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<option value="San Francisco">
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<option value="New York">
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<option value="Seattle">
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<option value="Los Angeles">
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<option value="Chicago">
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</datalist>
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{{< /example >}}
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