c# - 关闭表单后释放使用的内存
问题描述
我有包含 DevExpress 选项卡式视图的功能区表单。
当我在任务管理器中启动程序时，我得到118.6 MB的已用内存
现在当我在选项卡式视图上
打开新表单“FrmWeldingProduction”时，当我打开和关闭表单“FrmWeldingProduction”
时，我得到这些结果（已用内存）
首先打开 274.4 MB 第一次关闭 272.1 MB
第二次打开 403.9 MB 第二次关闭 401.6 MB
第三次打开 564.9 MB 第三次关闭 562.2 MB
这是表格后面的代码
public partial class FrmWeldingProduction : XtraForm, IDisposable
{
readonly CLS_Welding welding = new();
readonly CLS_User us = new();
private RepOptionsFirstLastTime firstLastTime = new();
private readonly CultureInfo cultureInfo = CultureInfo.CurrentCulture;
private readonly string WeldingProduction = Application.StartupPath + "\\WeldingProduction.xml";
private readonly string LayoutWeldingProduction = "LayoutWeldingProduction";
private readonly int IDScreen = 19;
public FrmWeldingProduction() { InitializeComponent(); }
private async Task Permission()
{
using(DataTable Dt = await us.ApplayPermission(Program.UserID, IDScreen).ConfigureAwait(true))
{
if(Dt.Rows[0][1].ToString() == "False" || string.IsNullOrEmpty(Dt.Rows[0][1].ToString()))
{
repItemCreationDate.ReadOnly = true;
}
if(Dt.Rows[0][2].ToString() == "False" || string.IsNullOrEmpty(Dt.Rows[0][2].ToString()))
{
btnDelete.Enabled = false;
btnDeleteNoir.Enabled = false;
}
}
}
private void FrmWeldingProduction_FormClosed(object sender, FormClosedEventArgs e)
{
workspaceManager1.CaptureWorkspace(LayoutWeldingProduction, true);
workspaceManager1.SaveWorkspace(LayoutWeldingProduction, WeldingProduction, true);
DisposeFrm();
}
public void DisposeFrm()
{
us.Dispose();
firstLastTime.Dispose();
this.Load -= FrmWeldingProduction_Load;
gridView1.FocusedRowChanged -= gridView1_FocusedRowChanged;
repItemCreationDate.DrawItem -= RepItemCreationDate_DrawItem;
btnRefresh.Click -= btnRefresh_Click;
this.KeyDown -= FrmWeldingProduction_KeyDown;
btnProductionProject.ItemClick -= btnProductionProject_ItemClick;
gridView1.CellValueChanged -= GridView1_CellValueChanged;
Dispose(true);
GC.SuppressFinalize(this);
}
private async void gridView1_FocusedRowChanged(
object sender,
DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e)
{
if(e.FocusedRowHandle > 0)
{
using(DataTable EmployeeWeldingByProduction = await welding.GetEmployeeWeldingByProduction(
Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "FK_ShiftTime"), cultureInfo),
Convert.ToDateTime(
gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "Date de fabrication"),
cultureInfo)
.ToString("MM/dd/yyyy", cultureInfo),
Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "FK_idPartShip"), cultureInfo),
Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "OrderNumber"), cultureInfo))
.ConfigureAwait(true))
{
gridControl2.DataSource = EmployeeWeldingByProduction;
}
}
}
private async void btnRefresh_Click(object sender, EventArgs e)
{
using(DataTable WeldingProduction = await welding.GetWeldingProduction().ConfigureAwait(true))
{
gridControl1.DataSource = WeldingProduction;
}
using(DataTable WeldingPaintProduction = await welding.GetWeldingPaintProduction().ConfigureAwait(true))
{
gridControl3.DataSource = WeldingPaintProduction;
}
using(DataTable WeldingPaintFabRest = await welding.GetWeldingPaintFabRest().ConfigureAwait(true))
{
gridControl4.DataSource = WeldingPaintFabRest;
}
using(DataTable WeldingPaintStatusCHProject = await welding.GetWeldingPaintStatusCHProject()
.ConfigureAwait(true))
{
gridControl5.DataSource = WeldingPaintStatusCHProject;
}
using(DataTable ProductionCharpent = await welding.GetProductionCharpent().ConfigureAwait(true))
{
gridControl6.DataSource = ProductionCharpent;
}
using(DataTable StatusSupportsBS = await welding.GetStatusSupportsBS().ConfigureAwait(true))
{
gridControl7.DataSource = StatusSupportsBS;
}
if(gridView1.FocusedRowHandle > 0)
{
using(DataTable EmployeeWeldingByProduction = await welding.GetEmployeeWeldingByProduction(
Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "FK_ShiftTime"), cultureInfo),
Convert.ToDateTime(
gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "Date de fabrication"),
cultureInfo)
.ToString("MM/dd/yyyy", cultureInfo),
Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "FK_idPartShip"), cultureInfo),
Convert.ToInt32(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "OrderNumber"), cultureInfo))
.ConfigureAwait(true))
{
gridControl2.DataSource = EmployeeWeldingByProduction;
}
}
}
private async void FrmWeldingProduction_Load(object sender, EventArgs e)
{
KeyPreview = true;
btnRefresh_Click(sender, e);
foreach(GridColumn columnDateEdit in gridView1.Columns)
columnDateEdit.OptionsColumn.AllowEdit = false;
gridView1.Columns["Date de fabrication"].OptionsColumn.AllowEdit = true;
//pivotGridControl1.DataSource = await welding.GetProductionCharpent().ConfigureAwait(true);
workspaceManager1.TargetControl = this;
workspaceManager1.SaveTargetControlSettings = true;
if(workspaceManager1.LoadWorkspace(LayoutWeldingProduction, WeldingProduction, true))
workspaceManager1.ApplyWorkspace(LayoutWeldingProduction);
await Permission().ConfigureAwait(true);
}
private bool IsHoliday(DateTime dt)
{
//the specified date is a Holiday
if(dt.DayOfWeek == DayOfWeek.Friday)
return true;
//New Year's Day
if(dt.Day == 1 && dt.Month == 1)
return true;
//Independence Day
if(dt.Day == 5 && dt.Month == 7)
return true;
//VAlgerian War of Independence
if(dt.Day == 1 && dt.Month == 11)
return true;
//Employees Day
if(dt.Day == 1 && dt.Month == 5)
return true;
return false;
}
private void RepItemCreationDate_DrawItem(
object sender,
DevExpress.XtraEditors.Calendar.CustomDrawDayNumberCellEventArgs e)
{
if(e.View != DevExpress.XtraEditors.Controls.DateEditCalendarViewType.MonthInfo)
return;
//return if a given date is not a holiday
//in this case the default drawing will be performed (e.Handled is false)
if(!IsHoliday(e.Date))
return;
//highlight the selected and hot-tracked dates
bool isHotTracked = e.State == DevExpress.Utils.Drawing.ObjectState.Hot;
if(e.Selected || isHotTracked)
{
e.Graphics.FillRectangle(e.Style.GetBackBrush(e.Cache), e.Bounds);
}
//the brush for painting days
Brush brush = (e.Inactive ? Brushes.LightPink : Brushes.Red);
//specify formatting attributes for drawing text
using(StringFormat strFormat = new StringFormat
{
Alignment = StringAlignment.Center,
LineAlignment = StringAlignment.Center
})
{
//draw the day number
e.Graphics.DrawString(e.Date.Day.ToString(), e.Style.Font, brush, e.Bounds, strFormat);
}
//no default drawing is required
e.Handled = true;
}
private void FrmWeldingProduction_KeyDown(object sender, KeyEventArgs e)
{
try
{
if(e.KeyCode == Keys.F5)
{
btnRefresh_Click(sender, e);
}
} catch
{
}
}
private void btnProductionProject_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if(firstLastTime == null || firstLastTime.IsDisposed)
firstLastTime = new RepOptionsFirstLastTime();
firstLastTime.Show();
firstLastTime.OK.Click += ProductionProject_Click;
}
private async void ProductionProject_Click(object sender, EventArgs e)
{
using(RepWeldingProductionSumm report = new())
{
// Create a new parameter.
Parameter param1 = new();
Parameter param2 = new();
Parameter param3 = new();
// Specify required properties.
param1.Name = "FirstDatepara1";
param1.Type = typeof(DateTime);
param1.Visible = false;
param1.Value = Convert.ToDateTime(firstLastTime.FirstDate.EditValue, cultureInfo)
.ToString("dd/MM/yyyy", cultureInfo);
param2.Name = "lastDatepara2";
param2.Type = typeof(DateTime);
param2.Visible = false;
param2.Value = Convert.ToDateTime(firstLastTime.LastDate.EditValue, cultureInfo)
.ToString("dd/MM/yyyy", cultureInfo);
param3.Name = "shifttime";
param3.Type = typeof(string);
param3.Visible = false;
param3.Value = firstLastTime.cmbShiftTime.Text;
report.Parameters.Add(param1);
report.Parameters.Add(param2);
report.Parameters.Add(param3);
if(firstLastTime.cmbShiftTime.Text == Resources.allDay ||
string.IsNullOrEmpty(firstLastTime.cmbShiftTime.Text))
{
report.DataSource = await welding.RepWeldingProductionSumm(
Convert.ToDateTime(firstLastTime.FirstDate.EditValue, cultureInfo)
.ToString("MM/dd/yyyy", cultureInfo),
Convert.ToDateTime(firstLastTime.LastDate.EditValue, cultureInfo)
.ToString("MM/dd/yyyy", cultureInfo))
.ConfigureAwait(true);
firstLastTime.Close();
report.ShowRibbonPreviewDialog();
} else
{
report.DataSource = await welding.RepWeldingProductionShiftTimeSumm(
Convert.ToDateTime(firstLastTime.FirstDate.EditValue, cultureInfo)
.ToString("MM/dd/yyyy", cultureInfo),
Convert.ToDateTime(firstLastTime.LastDate.EditValue, cultureInfo)
.ToString("MM/dd/yyyy", cultureInfo),
Convert.ToInt32(firstLastTime.cmbShiftTime.EditValue, cultureInfo))
.ConfigureAwait(true);
firstLastTime.Close();
report.ShowRibbonPreviewDialog();
}
}
}
private async void GridView1_CellValueChanged(
object sender,
DevExpress.XtraGrid.Views.Base.CellValueChangedEventArgs e)
{
await Permission().ConfigureAwait(true);
if(e.Column.FieldName == "Date de fabrication")
{
await welding.UpdtaeCreationDateWeldingProduction(
Convert.ToInt32(gridView1.GetRowCellValue(e.RowHandle, "id"), cultureInfo),
Convert.ToDateTime(e.Value))
.ConfigureAwait(true);
XtraMessageBox.Show(
Resources.operationAccomplishedSuccessfully,
Resources.Confirmation,
MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
}
}
解决方案
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