public async Task SetChecked(bool value)
{
if (Column.HeaderCheckbox)
{
// set a value and init ExceptCheckedRows for this column
_allChecked = value;
_showAllChecked = true;
GridComponent.ExceptCheckedRows.AddParameter(Column.Name, new QueryDictionary <bool>());
CheckboxEventArgs <T> args = new CheckboxEventArgs <T>
{
ColumnName = Column.Name
};
if (value)
{
args.Value = CheckboxValue.Checked;
}
else
{
args.Value = CheckboxValue.Unchecked;
}
await GridComponent.OnHeaderCheckboxChanged(args);
StateHasChanged();
}
}
internal virtual async Task OnRowCheckboxChanged(CheckboxEventArgs <T> args)
{
if (RowCheckboxChanged != null)
{
await RowCheckboxChanged.Invoke(args);
}
}
private async Task RowCheckboxChanged(CheckboxEventArgs <T> e)
{
if (e.ColumnName != Column.Name || !Column.HeaderCheckbox)
{
return;
}
var oldValue = _allChecked;
var checkedCount = GridComponent.CheckboxesKeyed.Get(Column.Name).Values.Count(r => r.Item2);
if (checkedCount > 0 && checkedCount != GridComponent.Grid.Pager.OriginalItemsCount)
{
_allChecked = null;
}
else
{
_allChecked = checkedCount == GridComponent.Grid.Pager.OriginalItemsCount;
LastHeaderCheckedValue = _allChecked == true;
GridComponent.CheckboxesKeyed.AddParameter(Column.Name, new QueryDictionary <(CheckboxComponent <T>, bool)>());
}
if (_allChecked != oldValue)
{
var args = new HeaderCheckboxEventArgs <T>
{
ColumnName = Column.Name,
Value = _allChecked == true ? CheckboxValue.Checked : CheckboxValue.Unchecked,
HeaderValue = _allChecked == null ? CheckboxValue.Gray : (_allChecked == true ? CheckboxValue.Checked : CheckboxValue.Unchecked),
StringKey = e.StringKey,
};
await GridComponent.OnHeaderCheckboxChanged(args);
await InvokeAsync(StateHasChanged);
}
}
private async Task RowCheckboxChanged(CheckboxEventArgs <T> e)
{
if (e.ColumnName == Column.Name)
{
SetHeaderCheckbox();
StateHasChanged();
await Task.CompletedTask;
}
}
private async Task RowCheckboxChanged(CheckboxEventArgs <T> e)
{
if (e.ColumnName == Column.Name)
{
if (Column.HeaderCheckbox)
{
if (GridComponent.ExceptCheckedRows.Get(Column.Name).Values.Where(r => r == true).Count()
== GridComponent.Grid.ItemsCount ||
(_allChecked == true &&
GridComponent.ExceptCheckedRows.Get(Column.Name).Values.Where(r => r == false).Count() == 0))
{
_allChecked = true;
_showAllChecked = true;
GridComponent.ExceptCheckedRows.AddParameter(Column.Name, new QueryDictionary <bool>());
}
else if (GridComponent.ExceptCheckedRows.Get(Column.Name).Values.Where(r => r == false).Count()
== GridComponent.Grid.ItemsCount ||
(_allChecked == false &&
GridComponent.ExceptCheckedRows.Get(Column.Name).Values.Where(r => r == true).Count() == 0))
{
_allChecked = false;
_showAllChecked = true;
GridComponent.ExceptCheckedRows.AddParameter(Column.Name, new QueryDictionary <bool>());
}
else
{
_showAllChecked = false;
}
}
else
{
_allChecked = null;
_showAllChecked = false;
}
_shouldRender = true;
StateHasChanged();
await Task.CompletedTask;
}
}
public async Task SetChecked(bool value)
{
if (Column.HeaderCheckbox)
{
_allChecked = value;
CheckboxEventArgs <T> args = new CheckboxEventArgs <T>
{
ColumnName = Column.Name
};
if (_allChecked)
{
args.Value = CheckboxValue.Checked;
}
else
{
args.Value = CheckboxValue.Unchecked;
}
await GridComponent.OnHeaderCheckboxChanged(args);
StateHasChanged();
}
}