public override ValidationResult Validate(object value, CultureInfo cultureInfo)
{
try
{
BindingGroup bindingGroup = (BindingGroup)value;
MyListItem eli = (MyListItem)bindingGroup.Items[0];
int reamin = Convert.ToInt32(bindingGroup.GetValue(eli, "Remain"));
int num = Convert.ToInt32(bindingGroup.GetValue(eli, "Num"));
if (num < 0)
{
return(new ValidationResult(false, "输入的数字不合法"));
}
if (num > reamin)
{
return(new ValidationResult(false, "租赁数量超过剩余数量"));
}
else
{
return(new ValidationResult(true, null));
}
}
catch (Exception ex)
{
return(new ValidationResult(false, ex.Message));
}
}
private void DataGrid1_MouseUp(object sender, MouseButtonEventArgs e)
{
MyListItem mli = DataGrid1.SelectedItem as MyListItem;
if (mli != null)
{
SelectNumWindow snw = new SelectNumWindow(mli);
snw.ShowDialog();
}
}
public override ValidationResult Validate(object value, CultureInfo cultureInfo)
{
try
{
BindingGroup bindingGroup = (BindingGroup)value;
MyListItem mli = (MyListItem)bindingGroup.Items[0];
int num = Convert.ToInt32((string)bindingGroup.GetValue(mli, "Num"));
if (num < 0)
{
return(new ValidationResult(false, "请输入大于等于0的数字"));
}
if (num > mli.Remain)
{
return(new ValidationResult(false, "输入的数量超过上限"));
}
return(new ValidationResult(true, null));
}
catch (Exception ex)
{
return(new ValidationResult(false, "请输入合法的数字"));
}
}
public SelectNumWindow(MyListItem mli)
{
InitializeComponent();
MylistItemStackPanel.DataContext = mli;
}