本文整理汇总了C#中IList.ElementAtOrDefault方法的典型用法代码示例。如果您正苦于以下问题：C# IList.ElementAtOrDefault方法的具体用法？C# IList.ElementAtOrDefault怎么用？C# IList.ElementAtOrDefault使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IList的用法示例。
在下文中一共展示了IList.ElementAtOrDefault方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Run
public int Run(IList<string> args)
{
string command = args.FirstOrDefault() ?? "";
_stdout.WriteLine("executing subtree " + command);
if (string.IsNullOrEmpty(Prefix))
{
_stdout.WriteLine("Prefix must be specified, use -p or -prefix");
return GitTfsExitCodes.InvalidArguments;
}
switch (command.ToLower())
{
case "add":
return DoAdd(args.ElementAtOrDefault(1) ?? "", args.ElementAtOrDefault(2) ?? "");
case "pull":
return DoPull(args.ElementAtOrDefault(1));
case "split":
return DoSplit();
default:
_stdout.WriteLine("Expected one of [add, pull, split]");
return GitTfsExitCodes.InvalidArguments;
}
}示例2: Copy
private static void Copy(
IList source,
IList target,
MemberSettings settings,
ReferencePairCollection referencePairs)
{
if ((source.IsFixedSize || target.IsFixedSize) && source.Count != target.Count)
{
throw State.Copy.Throw.CannotCopyFixesSizeCollections(source, target, settings);
}
var copyValues = State.Copy.IsCopyValue(
source.GetType().GetItemType(),
settings);
for (var i = 0; i < source.Count; i++)
{
if (copyValues)
{
target.SetElementAt(i, source[i]);
continue;
}
var sv = source[i];
var tv = target.ElementAtOrDefault(i);
bool created;
bool needsSync;
var clone = State.Copy.CloneWithoutSync(sv, tv, settings, out created, out needsSync);
if (created)
{
target.SetElementAt(i, clone);
}
if (needsSync)
{
State.Copy.Sync(sv, clone, settings, referencePairs);
}
}
target.TrimLengthTo(source);
}示例3: FindMethodInfo
private MethodInfo FindMethodInfo(IList<Token> arg)
{
var foundClassName = Type.ControllerName().EqualsIC(arg.ElementAtOrDefault(0).Value);
if (foundClassName)
{
var methodName = arg.ElementAtOrDefault(1).Value;
var methodInfo = FindMethodAmongLexedTokens.FindMethod(Type.GetControllerActionMethods(), methodName, arg);
return methodInfo;
}
return null;
}示例4: AppendDocumentsToPrimaryDocument
public byte[] AppendDocumentsToPrimaryDocument(byte[] primaryDocument, IList<byte[]> documentstoAppend)
{
if (documentstoAppend == null)
{
throw new ArgumentNullException("documentstoAppend");
}
if (primaryDocument == null)
{
throw new ArgumentNullException("primaryDocument");
}
byte[] output = null;
using (var finalDocumentStream = new MemoryStream())
{
finalDocumentStream.Write(primaryDocument, 0, primaryDocument.Length);
using (var finalDocument = WordprocessingDocument.Open(finalDocumentStream, true))
{
SectionProperties finalDocSectionProperties = null;
UnprotectDocument(finalDocument);
var tempSectionProperties =
finalDocument.MainDocumentPart.Document.Descendants<SectionProperties>().LastOrDefault();
if (tempSectionProperties != null)
{
finalDocSectionProperties = tempSectionProperties.CloneNode(true) as SectionProperties;
}
this.RemoveContentControlsAndKeepContents(finalDocument.MainDocumentPart.Document);
foreach (byte[] documentToAppend in documentstoAppend)
{
var subReportPart =
finalDocument.MainDocumentPart.AddAlternativeFormatImportPart(
AlternativeFormatImportPartType.WordprocessingML);
SectionProperties secProperties = null;
using (var docToAppendStream = new MemoryStream())
{
docToAppendStream.Write(documentToAppend, 0, documentToAppend.Length);
using (var docToAppend = WordprocessingDocument.Open(docToAppendStream, true))
{
UnprotectDocument(docToAppend);
tempSectionProperties =
docToAppend.MainDocumentPart.Document.Descendants<SectionProperties>().LastOrDefault();
if (tempSectionProperties != null)
{
secProperties = tempSectionProperties.CloneNode(true) as SectionProperties;
}
this.RemoveContentControlsAndKeepContents(docToAppend.MainDocumentPart.Document);
docToAppend.MainDocumentPart.Document.Save();
}
docToAppendStream.Position = 0;
subReportPart.FeedData(docToAppendStream);
}
if (documentstoAppend.ElementAtOrDefault(0).Equals(documentToAppend))
{
AssignSectionProperties(finalDocument.MainDocumentPart.Document, finalDocSectionProperties);
}
var altChunk = new AltChunk();
altChunk.Id = finalDocument.MainDocumentPart.GetIdOfPart(subReportPart);
finalDocument.MainDocumentPart.Document.AppendChild(altChunk);
if (!documentstoAppend.ElementAtOrDefault(documentstoAppend.Count - 1).Equals(documentToAppend))
{
AssignSectionProperties(finalDocument.MainDocumentPart.Document, secProperties);
}
finalDocument.MainDocumentPart.Document.Save();
}
finalDocument.MainDocumentPart.Document.Save();
}
finalDocumentStream.Position = 0;
output = new byte[finalDocumentStream.Length];
finalDocumentStream.Read(output, 0, output.Length);
}
return output;
}示例5: GetScore
public int? GetScore(IList<BowlingFrame> frames)
{
var nextFrame = frames.ElementAtOrDefault(frames.IndexOf(this) + 1);
// Strike
if (IsStrike) {
if (nextFrame != null) {
// Is next ball a strike? If so, we'll need the next frame
if (nextFrame.IsStrike) {
var thirdFrame = frames.ElementAtOrDefault(frames.IndexOf(nextFrame) + 1);
// Get first throw of third frame, if it's a strike it's just +10
if (thirdFrame != null && thirdFrame.Ball1 != null) {
return 20 + thirdFrame.Ball1.Value;
} else if (thirdFrame == null && nextFrame.IsLast) {
// 10th frame
if (nextFrame.Ball1 != null && nextFrame.Ball2 != null) {
return 10 + nextFrame.Ball1.Value + nextFrame.Ball2.Value;
}
}
} else {
if (nextFrame.Ball1 == null || nextFrame.Ball2 == null) {
return null;
} else {
return 10 + nextFrame.Ball1.Value + nextFrame.Ball2.Value;
}
}
} else {
// Last frame and a first or second ball is strike
if (Ball2 == Constants.TotalPins && Ball3 != null) {
return Ball1 + Ball2 + Ball3;
} else if (Ball1 == Constants.TotalPins && Ball2 != null && Ball3 != null) {
return Ball1 + Ball2 + Ball3;
} else if (IsSpare) {
return Ball1 + Ball2 + Ball3;
}
}
// cannot calculate just yet
return null;
}
// Spare
if (IsSpare) {
// Get next ball
if (nextFrame != null && nextFrame.Ball1 != null) {
return 10 + nextFrame.Ball1.Value;
} else if (nextFrame == null && Ball3 != null) {
// last frame
return 10 + Ball3.Value;
}
// cannot calculate just yet
return null;
}
// Open frame
if (Ball2 != null && Ball1 != null) {
return Ball1.Value + Ball2.Value;
} else {
return null;
}
}示例6: ValidateEntity
private void ValidateEntity(object o, object id, PersistenceOperationEnum persistenceOperation, IList<string> properties, IList<IType> types, IList<object> currentState, IList<object> previousState)
{
if (ReferenceEquals(_session, null)) return;
if (!ReferenceEquals(_session.Transaction, null) && _session.Transaction.WasRolledBack) return;
var factoryName = _session.GetSessionImplementation().Factory.Settings.SessionFactoryName;
var epc = new EntityPersistenceContext {FactoryName = factoryName, Id = id};
if (properties != null)
{
for (var i = 0; i < properties.Count; i++)
{
if (currentState != null) epc.CurrentState.Add(properties[i], currentState.ElementAtOrDefault(i));
if (types != null) epc.Types.Add(properties[i], types.ElementAtOrDefault(i));
}
}
switch (persistenceOperation)
{
case PersistenceOperationEnum.Adding:
epc.IsBeingAdded = true;
break;
case PersistenceOperationEnum.Updating:
epc.IsBeingModified = true;
if (properties == null || previousState == null) break;
for (var i = 0; i < properties.Count; i++ )
{
epc.PreviousState.Add(properties[i], previousState.ElementAtOrDefault(i));
}
break;
case PersistenceOperationEnum.Removing:
epc.IsBeingRemoved = true;
break;
default:
throw new ArgumentOutOfRangeException(persistenceOperation.ToString());
}
var validationResults = EntityValidator.DoMemberValidation(o, epc).ToList();
if (validationResults.Count() == 0)
{
if (_validationResults.ContainsKey(o))
{
//remove the validation errors from a previous flush
_validationResults.Remove(o);
}
return;
}
if (!_validationResults.ContainsKey(o))
{
//add the validation results for the entity
_validationResults.Add(o, validationResults);
}
else
{
//replace the validation results for the entity
_validationResults[o] = validationResults;
}
}示例7: ApplyValues
public void ApplyValues(string groupName, IList<string> values)
{
switch (groupName)
{
case "ribbon_group_1_name":
RibbonGroupDigitalLogoTitle = values.ElementAtOrDefault(0);
break;
case "top_level_subtab_names":
SectionsHomeTitle = values.ElementAtOrDefault(0);
SectionsListTitle = values.ElementAtOrDefault(1);
SectionsProductTitle = values.ElementAtOrDefault(2);
SectionsSummaryTitle = values.ElementAtOrDefault(3);
SectionsProductPackageTitle = values.ElementAtOrDefault(4);
SectionsStandalonePackageTitle = values.ElementAtOrDefault(5);
break;
case "tab_2_column_header_names":
ListColumnsGroupTitle = values.ElementAtOrDefault(0);
ListColumnsProductTitle = values.ElementAtOrDefault(1);
ListColumnsPricingTitle = values.ElementAtOrDefault(2);
ListColumnsOptionsTitle = values.ElementAtOrDefault(3);
break;
case "tab_2_left_panel_button_names":
ListSettingsDimensionTitle = values.ElementAtOrDefault(0);
ListSettingsLocationTitle = values.ElementAtOrDefault(1);
ListSettingsStrategyTitle = values.ElementAtOrDefault(2);
ListSettingsTargetingTitle = values.ElementAtOrDefault(3);
ListSettingsRichMediaTitle = values.ElementAtOrDefault(4);
break;
case "tab_2_new_line_placeholder_names":
ListEditorsGroupTitle = values.ElementAtOrDefault(0);
ListEditorsProductTitle = values.ElementAtOrDefault(1);
ListEditorsLocationTitle = values.ElementAtOrDefault(2);
break;
case "tab_2_new_line_options_label_names":
ListEditorsTargetingTitle = values.ElementAtOrDefault(0);
ListEditorsRichMediaTitle = values.ElementAtOrDefault(1);
break;
case "tab_2_add_product_hover_tip":
RibbonButtonDigitalAddTitle = values.ElementAtOrDefault(0);
RibbonButtonDigitalAddTooltip = values.ElementAtOrDefault(1);
break;
case "tab_2_delete_product_hover_tip":
RibbonButtonDigitalDeleteTitle = values.ElementAtOrDefault(0);
RibbonButtonDigitalDeleteTooltip = values.ElementAtOrDefault(1);
break;
case "tab_2_clone_product_hover_tip":
RibbonButtonDigitalCloneTitle = values.ElementAtOrDefault(0);
RibbonButtonDigitalCloneTooltip = values.ElementAtOrDefault(1);
break;
case "tab_2_warning_popup":
ListPopupGroupText = values.ElementAtOrDefault(0);
break;
case "tab_3_section_titles":
ProductEditorsSitesTitle = values.ElementAtOrDefault(0);
ProductEditorsNameTitle = values.ElementAtOrDefault(1);
ProductEditorsDescriptionTitle = values.ElementAtOrDefault(2);
ProductEditorsPricingTitle = values.ElementAtOrDefault(3);
ProductEditorsCommentsTitle = values.ElementAtOrDefault(4);
break;
case "tab_3_section_icons":
var imageRootFolder = Path.Combine(
Path.GetDirectoryName(typeof(DigitalControlsConfiguration).Assembly.Location),
"Data",
"!Main_Dashboard",
"Online Source",
"Icon Images");
if (!Directory.Exists(imageRootFolder)) break;
ProductEditorsSitesLogo = !String.IsNullOrEmpty(values.ElementAtOrDefault(0)) ? Image.FromFile(Path.Combine(imageRootFolder, values[0])) : null;
ProductEditorsNameLogo = !String.IsNullOrEmpty(values.ElementAtOrDefault(1)) ? Image.FromFile(Path.Combine(imageRootFolder, values[1])) : null;
ProductEditorsDescriptionLogo = !String.IsNullOrEmpty(values.ElementAtOrDefault(2)) ? Image.FromFile(Path.Combine(imageRootFolder, values[2])) : null;
ProductEditorsPricingLogo = !String.IsNullOrEmpty(values.ElementAtOrDefault(3)) ? Image.FromFile(Path.Combine(imageRootFolder, values[3])) : null;
ProductEditorsCommentsLogo = !String.IsNullOrEmpty(values.ElementAtOrDefault(4)) ? Image.FromFile(Path.Combine(imageRootFolder, values[4])) : null;
break;
case "tab_5_column_header_names":
ProductPackageColumnsCategoryTitle = values.ElementAtOrDefault(0);
ProductPackageColumnsSubCategoryTitle = values.ElementAtOrDefault(1);
ProductPackageColumnsProductTitle = values.ElementAtOrDefault(2);
ProductPackageColumnsInfoTitle = values.ElementAtOrDefault(3);
ProductPackageColumnsLocationTitle = values.ElementAtOrDefault(4);
ProductPackageColumnsInvestmentTitle = values.ElementAtOrDefault(5);
ProductPackageColumnsImpressionsTitle = values.ElementAtOrDefault(6);
ProductPackageColumnsCPMTitle = values.ElementAtOrDefault(7);
ProductPackageColumnsRateTitle = values.ElementAtOrDefault(8);
break;
case "tab_5_left_panel_button_names":
ProductPackageSettingsCategoryTitle = values.ElementAtOrDefault(0);
ProductPackageSettingsSubCategoryTitle = values.ElementAtOrDefault(1);
ProductPackageSettingsProductTitle = values.ElementAtOrDefault(2);
ProductPackageSettingsInfoTitle = values.ElementAtOrDefault(3);
ProductPackageSettingsLocationTitle = values.ElementAtOrDefault(4);
ProductPackageSettingsInvestmentTitle = values.ElementAtOrDefault(5);
ProductPackageSettingsImpressionsTitle = values.ElementAtOrDefault(6);
ProductPackageSettingsCPMTitle = values.ElementAtOrDefault(7);
ProductPackageSettingsRateTitle = values.ElementAtOrDefault(8);
ProductPackageSettingsScreenshotTitle = values.ElementAtOrDefault(9);
ProductPackageSettingsFormulaTitle = values.ElementAtOrDefault(10);
break;
case "tab_6_column_header_names":
StandalonePackageColumnsCategoryTitle = values.ElementAtOrDefault(0);
StandalonePackageColumnsSubCategoryTitle = values.ElementAtOrDefault(1);
//.........这里部分代码省略.........
示例8: Server
private async static void Server(IList<string> list, AHistory c)
{
string pwd = null;
int port = 0;
if (list.ElementAtOrDefault(1) == null)
throw new ErrorBIRC(MainPage.GetErrorString("InvalidServerCmd"));
if (list.ElementAtOrDefault(2) != null)
{
if (int.TryParse(list[2], out port) == false)
port = IrcClient.DefaultPort;
}
else
port = IrcClient.DefaultPort;
if (list.ElementAtOrDefault(3) != null)
pwd = await Encryption.Protect(list[3]);
Connection newc = new Connection()
{
AutoConnect = true,
Name = list[1],
Port = port,
Password = pwd
};
AHistory cur = ConnectionUtils.Add(newc);
((BIRCViewModel)MainPage.currentDataContext).ServerSelection = cur;
if (!cur.Command.IsConnected())
cur.Command.Connect();
}