Enterprise Library Test Guide - Willy .Net

Testing for Performance and Scalability 179
viewState = this.Context["$HIDDEN1.__VIEWSTATE"].ToString();
EventValidation = this.Context["$HIDDEN1.__EVENTVALIDATION"].ToString();
}
String KeyValueString;
// The object is locked and the keyvalue is incremented.
// It is stored in a local variable
// and used in the post statement.
// This is only applicable to the Caching Application Block.
lock (lockn)
{
KeyValueString = KeyValue.ToString();
KeyValue++;
if (KeyValue > MaxElements)
KeyValue = 1;
}
// A timer is set to measure transaction times.
this.BeginTransaction("Caching_Entlib20");
WebTestRequest request2 = new WebTestRequest("http://10.3.16.10/EntLib/Caching/
Caching.aspx");
request2.Method = "POST";
FormPostHttpBody request2Body = new FormPostHttpBody();
// Add the ViewState hidden filed to the body of the request.
request2Body.FormPostParameters.Add("__VIEWSTATE", ViewState);
request2Body.FormPostParameters.Add("txtBoxKeyValue", KeyValue);
request2Body.FormPostParameters.Add("txtBoxCacheSize", "2000");
request2Body.FormPostParameters.Add("ddlCacheManager","DefaultCacheManager");
request2Body.FormPostParameters.Add("ddlExpirationType", "0");
request2Body.FormPostParameters.Add("ddlPriority", "0");
request2Body.FormPostParameters.Add("btnAddItemToCache", "Add Item");
// Add the EventValidation hidden field to the body of the request.
request2Body.FormPostParameters.Add("__EVENTVALIDATION", EventValidation);
request2.Body = request2Body;
yield return request2;
this.EndTransaction("Caching_Entlib20");
}
Using Data Binding
With data binding, you can use a data source to provide data for a Web test. You can
bind data from the data source to a part of a Web request that requires data, such as
a form post parameter. For example, in the Caching Application Block Web test, you
can set the value of the cache storage (this can be either SqlCacheManager or DefaultCacheManager)
in the data source and then pass this value to the Web test at
run time. The Cache Manager drop-down list will show the correct cache manager as
selected. You can use any OLE DB data source for data binding, including .csv files,
Microsoft Excel, Access and SQL Server databases.
To use data binding, first create a database table or a .csv file that contains the data
that will be bound to the Web control. The first row in the column is a name and the
subsequent rows are the values. For example, to data bind values to the drop-down