ant-design-blazor/components/form/Form.razor.cs
Zonciu Liang d11dad8a45 feat(module: form): make the form validator customizable (#841)
* feat(module: form): make the form validator customizable

* docs: simplify form custom validators demo

* modify the demo

Co-authored-by: ElderJames <shunjiey@hotmail.com>
2020-12-01 19:07:14 +08:00

186 lines
4.7 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using AntDesign.Forms;
using AntDesign.Internal;
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Forms;
using OneOf;
namespace AntDesign
{
public partial class Form<TModel> : AntDomComponentBase, IForm
{
private readonly string _prefixCls = "ant-form";
[Parameter]
public string Layout { get; set; } = FormLayout.Horizontal;
[Parameter]
public RenderFragment<TModel> ChildContent { get; set; }
[Parameter]
public ColLayoutParam LabelCol { get; set; } = new ColLayoutParam();
[Parameter]
public OneOf<string, int> LabelColSpan
{
get { return LabelCol.Span; }
set { LabelCol.Span = value; }
}
[Parameter]
public OneOf<string, int> LabelColOffset
{
get { return LabelCol.Offset; }
set { LabelCol.Offset = value; }
}
[Parameter]
public ColLayoutParam WrapperCol { get; set; } = new ColLayoutParam();
[Parameter]
public OneOf<string, int> WrapperColSpan
{
get { return WrapperCol.Span; }
set { WrapperCol.Span = value; }
}
[Parameter]
public OneOf<string, int> WrapperColOffset
{
get { return WrapperCol.Offset; }
set { WrapperCol.Offset = value; }
}
[Parameter]
public string Size { get; set; }
[Parameter]
public string Name { get; set; }
[Parameter]
public TModel Model { get; set; }
[Parameter]
public bool Loading { get; set; }
[Parameter]
public EventCallback<EditContext> OnFinish { get; set; }
[Parameter]
public EventCallback<EditContext> OnFinishFailed { get; set; }
[Parameter]
public RenderFragment Validator { get; set; } = _defaultValidator;
private static readonly RenderFragment _defaultValidator = builder =>
{
builder.OpenComponent<ObjectGraphDataAnnotationsValidator>(0);
builder.CloseComponent();
};
[CascadingParameter(Name = "FormProvider")]
private IFormProvider FormProvider { get; set; }
public bool IsModified => _editContext.IsModified();
private EditContext _editContext;
private IList<IFormItem> _formItems = new List<IFormItem>();
private IList<IControlValueAccessor> _controls = new List<IControlValueAccessor>();
ColLayoutParam IForm.WrapperCol => WrapperCol;
ColLayoutParam IForm.LabelCol => LabelCol;
EditContext IForm.EditContext => _editContext;
string IForm.Size => Size;
string IForm.Name => Name;
object IForm.Model => Model;
bool IForm.IsModified => throw new NotImplementedException();
public event Action<IForm> OnFinishEvent;
protected override void OnInitialized()
{
base.OnInitialized();
_editContext = new EditContext(Model);
if (FormProvider != null)
{
FormProvider.AddForm(this);
}
}
protected override void OnParametersSet()
{
base.OnParametersSet();
SetClass();
}
protected void SetClass()
{
this.ClassMapper.Clear()
.Add(_prefixCls)
.Add($"{_prefixCls}-{Layout.ToLower()}")
;
}
private async Task OnValidSubmit(EditContext editContext)
{
await OnFinish.InvokeAsync(editContext);
OnFinishEvent?.Invoke(this);
}
private async Task OnInvalidSubmit(EditContext editContext)
{
await OnFinishFailed.InvokeAsync(editContext);
}
public void Reset()
{
_controls.ForEach(item => item.Reset());
}
void IForm.AddFormItem(IFormItem formItem)
{
_formItems.Add(formItem);
}
void IForm.AddControl(IControlValueAccessor valueAccessor)
{
this._controls.Add(valueAccessor);
}
public void Submit()
{
var isValid = _editContext.Validate();
if (isValid)
{
if (OnFinish.HasDelegate)
{
OnFinish.InvokeAsync(_editContext);
}
OnFinishEvent?.Invoke(this);
}
else
{
OnFinishFailed.InvokeAsync(_editContext);
}
}
public bool Validate()
{
return _editContext.Validate();
}
}
}