private void UpdateMonthPage() { monthYear.AutoGenerateColumns = false; DataGridViewTextBoxColumn modelColumn = new DataGridViewTextBoxColumn(); monthYear.DataSource = years; modelColumn.HeaderText = "År"; modelColumn.DataPropertyName = "Value"; modelColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill; monthYear.Columns.Add(modelColumn); foreach (var item in mc.GetAllYearsWithVisits()) { monthYears.Add(new StringValue("" + item)); } monthMonth.AutoGenerateColumns = false; DataGridViewTextBoxColumn modelColumn2 = new DataGridViewTextBoxColumn(); monthMonth.DataSource = months; modelColumn2.HeaderText = "Måned"; modelColumn2.DataPropertyName = "Value"; modelColumn2.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill; monthMonth.Columns.Add(modelColumn2); }