public virtual void Delete(TEntity entityToDelete)
{
if (context.Entry(entityToDelete).State == EntityState.Detached)
{
dbSet.Attach(entityToDelete);
}
dbSet.Remove(entityToDelete);
}
public async Task <IActionResult> PutChart(long id, Chart chart)
{
if (id != chart.Id)
{
return(BadRequest());
}
_context.Entry(chart).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ChartExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
protected void ddlTrendChart_SelectedIndexChanged(object sender, EventArgs e)
{
if (this.ddlTrendChart.SelectedValue != "")
{
this.txtPath1.Text = this.ddlTrendChart.SelectedValue;
this.img_TrendChart.ImageUrl = this.ddlTrendChart.SelectedValue;
this.pic_div1.Visible = true;
using (var context = new ChartContext())
{
var entity = context.Gathers.FirstOrDefault(g => g.PngFilePath == this.ddlTrendChart.SelectedValue);
if (entity != null)
{
var entities = context.Entry(entity).Collection(x => x.GatherTrends).Query().OrderByDescending(a => a.Number).ToList();
var firstElement = entities.First();
var lastElement = entities.Last();
var avgValue = Math.Round(entities.Average(a => a.Number.Value));
this.txtLowExponent.Value = lastElement.Number.ToString();
this.txtHeightExponent.Value = firstElement.Number.ToString();
this.txtAvgExponent.Value = avgValue.ToString();
var startMonth = lastElement.Name.ToDateTime().Month;
this.txtStartMonth.Value = startMonth.ToString();
var startDay = lastElement.Name.ToDateTime().Day;
this.txtStartdDay.Value = startDay.ToString();
this.txtLowNumber.Value = lastElement.Number.Value.ToString();
var endMonth = firstElement.Name.ToDateTime().Month;
this.txtEndMonth.Value = endMonth.ToString();
var endDay = firstElement.Name.ToDateTime().Day;
this.txtEndDay.Value = endDay.ToString();
this.txtHeightNumber.Value = firstElement.Number.Value.ToString();
if (avgValue <= 10)
{
this.ddlTrend.Value = "平稳";
}
else
{
this.ddlTrend.Value = "波动";
}
}
}
}
else
{
this.txtPath1.Text = string.Empty;
this.img_TrendChart.ImageUrl = null;
this.pic_div1.Visible = false;
this.txtLowExponent.Value = string.Empty;
this.txtHeightExponent.Value = string.Empty;
this.txtAvgExponent.Value = string.Empty;
this.txtStartMonth.Value = string.Empty;
this.txtStartdDay.Value = string.Empty;
this.txtLowNumber.Value = string.Empty;
this.txtEndMonth.Value = string.Empty;
this.txtEndDay.Value = string.Empty;
this.txtHeightNumber.Value = string.Empty;
}
}
public void Update(UserData item)
{
db.Entry(item).State = System.Data.Entity.EntityState.Modified;
}
public void Update(Point point)
{
db.Entry(point).State = EntityState.Modified;
}