private TableRow GetSqlEntity(string partitionKey, string rowKey, DateTime?timeStamp)
{
string str = partitionKey;
string str1 = rowKey;
TableRow tableRow = null;
str = DevelopmentStorageDbDataContext.EncodeKeyString(str);
str1 = DevelopmentStorageDbDataContext.EncodeKeyString(str1);
if (!timeStamp.HasValue || !timeStamp.HasValue)
{
tableRow = (
from r in this.m_dbContext.TableRows
where (r.AccountName == this.AccountName) && (r.TableName == this.m_currentResourceContainer.Name.ToLowerInvariant()) && (r.PartitionKey == str) && (r.RowKey == str1)
select r).FirstOrDefault <TableRow>();
}
else
{
DateTime sql2005DateTime = DevelopmentStorageDbDataContext.GetSql2005DateTime(timeStamp.Value);
tableRow = (
from r in this.m_dbContext.TableRows
where (r.AccountName == this.AccountName) && (r.TableName == this.m_currentResourceContainer.Name.ToLowerInvariant()) && (r.PartitionKey == str) && (r.RowKey == str1) && (r.Timestamp == sql2005DateTime)
select r).FirstOrDefault <TableRow>();
}
return(tableRow);
}
protected Expression VisitConstant(ConstantExpression c)
{
if (!(c.Value is IQueryable))
{
if (c.Value == null)
{
throw new ArgumentException("Nulls are not supported in a query.", "c");
}
if (!this.HasOpenPropertyOnStack())
{
this.PartialClause.Append(string.Concat("@p", this.paramIndex));
}
else
{
this.InsertOpenTypeFilters(c.Value, string.Concat("@p", this.paramIndex));
}
this.paramIndex++;
this.pointQueryTracker.AddValue(c.Value);
if (c.Value is DateTime)
{
DateTime sql2005DateTime = DevelopmentStorageDbDataContext.GetSql2005DateTime((DateTime)c.Value);
this.Parameters.Add(new ParameterRecord(XmlConvert.ToString(sql2005DateTime, XmlDateTimeSerializationMode.Utc), false));
}
else if (c.Value is Guid)
{
this.Parameters.Add(new ParameterRecord(c.Value.ToString(), false));
}
else if (!(c.Value is string))
{
this.Parameters.Add(new ParameterRecord(c.Value, false));
}
else
{
this.Parameters.Add(new ParameterRecord(c.Value, true));
}
}
return(c);
}
