本文整理匯總了C#中System.Data.SqlClient.SqlConnectionStringBuilder.TryGetValue方法的典型用法代碼示例。如果您正苦於以下問題：C# SqlConnectionStringBuilder.TryGetValue方法的具體用法？C# SqlConnectionStringBuilder.TryGetValue怎麽用？C# SqlConnectionStringBuilder.TryGetValue使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Data.SqlClient.SqlConnectionStringBuilder的用法示例。
在下文中一共展示了SqlConnectionStringBuilder.TryGetValue方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Main
//引入命名空間
using System.Data.SqlClient;
using System;
using System.Data.SqlClient;
class Program
{
static void Main()
{
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
builder.ConnectionString = GetConnectionString();
// Call TryGetValue method for multiple
// key names. Note that these keys are converted
// to well-known synonynms for data retrieval.
DisplayValue(builder, "Data Source");
DisplayValue(builder, "Trusted_Connection");
DisplayValue(builder, "InvalidKey");
DisplayValue(builder, null);
Console.WriteLine("Press any key to continue.");
Console.ReadLine();
}
private static void DisplayValue(
SqlConnectionStringBuilder builder, string key)
{
object value = null;
// Although TryGetValue handles missing keys,
// it doesn't handle passing in a null
// key. This example traps for that particular error, but
// passes any other unknown exceptions back out to the
// caller.
try
{
if (builder.TryGetValue(key, out value))
{
Console.WriteLine("{0}='{1}'", key, value);
}
else
{
Console.WriteLine("Unable to retrieve value for '{0}'", key);
}
}
catch (ArgumentNullException)
{
Console.WriteLine("Unable to retrieve value for null key.");
}
}
private static string GetConnectionString()
{
// To avoid storing the connection string in your code,
// you can retrieve it from a configuration file.
return "Server=(local);Integrated Security=SSPI;" +
"Initial Catalog=AdventureWorks";
}
}