本文整理汇总了C#中IShellContext.Evaluate方法的典型用法代码示例。如果您正苦于以下问题：C# IShellContext.Evaluate方法的具体用法？C# IShellContext.Evaluate怎么用？C# IShellContext.Evaluate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IShellContext的用法示例。
在下文中一共展示了IShellContext.Evaluate方法的6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: DoRun
protected override void DoRun(IShellContext context)
{
object collection = context.Evaluate(Collection);
var value = Value;
if (value == null) value = context.Evaluate(ValueExpression);
var dct = collection as IDictionary;
if (dct != null && Key != null) dct[Key] = value;
var lst = collection as IList;
if (lst != null) lst.Add(value);
}示例2: DoRun
protected override void DoRun(IShellContext context)
{
string file = context.ResolveFile(context.Replace(File), ResolveFileMode.Output);
if (Expression != null && Value != null) throw new Exception("DBSH-00078 SaveToFile: both Expression and Value is set");
if (Expression == null && Value == null) throw new Exception("DBSH-00079 SaveToFile: none of Expression and Value is set");
if (Expression != null)
{
object obj = context.Evaluate(Expression);
if (obj is byte[])
{
var bytes = (byte[]) obj;
using (var fw = System.IO.File.OpenWrite(file))
{
fw.Write(bytes, 0, bytes.Length);
}
}
else
{
using (var fw = new StreamWriter(file, false, Encoding))
{
fw.Write(obj.ToString());
}
}
}
if (Value!=null)
{
string val = context.Replace(Value);
using (var fw = new StreamWriter(file, false, Encoding))
{
fw.Write(val);
}
}
}示例3: DoRun
protected override void DoRun(IShellContext context)
{
object model = null;
IModelProvider provider = null;
if (Model is string)
{
model = context.Evaluate((string) Model);
if (model is IModelProvider)
{
provider = (IModelProvider) model;
model = provider.GetModel(context);
}
}
else if (Model is IModelProvider)
{
provider = (IModelProvider)Model;
model = provider.GetModel(context);
}
else
{
model = Model;
}
_log.InfoFormat("DBSH-00074 Apply template {0}=>{1}", TemplateFile ?? "(inline template)", File);
string templateData = LoadTemplate(context);
try
{
string fn = context.ResolveFile(context.Replace(File), ResolveFileMode.Output);
context.OutputMessage("Generating file " + fn);
using (var sw = new StreamWriter(fn))
{
RazorScripting.ParseRazor(templateData, sw.Write, model,
provider != null ? provider.InitializeTemplate : (Action<IRazorTemplate, IShellContext>) null, context);
}
}
catch (RazorEngine.Templating.TemplateCompilationException err)
{
_log.ErrorFormat("DBSH-00075 Error compiling template {0}", TemplateFile);
foreach (var error in err.Errors)
{
_log.Error(error.ToString());
}
throw;
}
}示例4: DoRun
protected override void DoRun(IShellContext context)
{
ITabularDataSource source;
if (Source != null && SourceExpression != null) throw new Exception("DBSH-00153 LoadTable: Both Source and SourceExpression are set");
if (Source == null && SourceExpression == null) throw new Exception("DBSH-00154 LoadTable: None Source and SourceExpression are set");
if (SourceExpression != null)
{
source = (ITabularDataSource)context.Evaluate(SourceExpression);
}
else
{
source = Source;
}
GetModel(context).LoadTable(source, new NameWithSchema(context.Replace(Schema), context.Replace(Table)), context);
}示例5: DoRun
protected override void DoRun(IShellContext context)
{
if (Value != null && Expression != null) throw new Exception("DBSH-00006 Both Value and Expression is set");
if (Value != null)
{
if (Value is string)
{
context.SetVariable(context.Replace(Name), context.Replace(Value.ToString()));
}
else
{
context.SetVariable(context.Replace(Name), Value);
}
}
if (Expression != null)
{
context.SetVariable(context.Replace(Name), context.Evaluate(Expression));
}
if (Expression == null && Value == null)
{
context.SetVariable(context.Replace(Name), null);
}
}示例6: DoRun
protected override void DoRun(IShellContext context)
{
ITabularDataSource source;
ITabularDataTarget target;
if (Source != null && SourceExpression != null) throw new Exception("DBSH-00087 CopyTable: Both Source and SourceExpression are set");
if (Source == null && SourceExpression == null) throw new Exception("DBSH-00088 CopyTable: None Source and SourceExpression are set");
if (Target != null && TargetExpression != null) throw new Exception("DBSH-00089 CopyTable: Both Target and TargetExpression are set");
if (Target == null && TargetExpression == null) throw new Exception("DBSH-00090 CopyTable: None Target and TargetExpression are set");
if (SourceExpression != null)
{
source = (ITabularDataSource) context.Evaluate(SourceExpression);
}
else
{
source = Source;
}
if (TargetExpression != null)
{
target = (ITabularDataTarget) context.Evaluate(TargetExpression);
}
else
{
target = Target;
}
var options = new CopyTableTargetOptions
{
TruncateBeforeCopy = CleanTarget,
TargetMapMode = TargetMapMode,
AllowBulkCopy = AllowBulkCopy,
};
var table = source.GetRowFormat(context);
_log.InfoFormat("Copy table data {0}=>{1}", Source.ToStringCtx(context), Target.ToStringCtx(context));
context.OutputMessage(String.Format("Copy table data {0}=>{1}", Source.ToStringCtx(context), Target.ToStringCtx(context)));
var transformedInputTable = table;
var counts = new List<int>();
if (ColumnMap.Count > 0)
{
transformedInputTable = new TableInfo(null);
foreach (var mapItem in ColumnMap)
{
var newCols = mapItem.GetOutputColumns(table, context);
counts.Add(newCols.Length);
transformedInputTable.Columns.AddRange(newCols);
}
}
using (var reader = source.CreateReader(context))
{
using (var writer = target.CreateWriter(transformedInputTable, options, context, source.GetSourceFormat(context)))
{
int rowNumber = 0;
while (reader.Read())
{
if (ColumnMap.Count > 0)
{
var outputRecord = new ArrayDataRecord(transformedInputTable);
int columnIndex = 0;
for (int i = 0; i < ColumnMap.Count; i++)
{
var map = ColumnMap[i];
int count = counts[i];
for (int j = 0; j < count; j++, columnIndex++)
{
outputRecord.SeekValue(columnIndex);
map.ProcessMapping(j, rowNumber, reader, outputRecord, context);
}
}
writer.Write(outputRecord);
}
else
{
writer.Write(reader);
}
rowNumber++;
}
}
}
}