本文整理汇总了C#中System.Data.Common.DbConnectionStringBuilder.TryGetValue方法的典型用法代码示例。如果您正苦于以下问题：C# DbConnectionStringBuilder.TryGetValue方法的具体用法？C# DbConnectionStringBuilder.TryGetValue怎么用？C# DbConnectionStringBuilder.TryGetValue使用的例子？那么, 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System.Data.Common.DbConnectionStringBuilder的用法示例。
在下文中一共展示了DbConnectionStringBuilder.TryGetValue方法的1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: Main
static void Main()
{
DbConnectionStringBuilder builder = new DbConnectionStringBuilder();
builder.ConnectionString =
"Provider=sqloledb;Data Source=192.168.168.1,1433;" +
"Network Library=DBMSSOCN;Initial Catalog=pubs;" +
"Integrated Security=SSPI;";
// Call TryGetValue method for multiple
// key names.
DisplayValue(builder, "Provider");
DisplayValue(builder, "DATA SOURCE");
DisplayValue(builder, "InvalidKey");
DisplayValue(builder, null);
Console.ReadLine();
}
private static void DisplayValue(
DbConnectionStringBuilder 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
// bubbles 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.");
}
}