Question

I gave the above string,I want to get the serveripaddress,DB1,uid and **** these values from that string.

Answer 1

There is no need to parse a connection string when the BCL can do it for you:

var builder = new OleDbConnectionStringBuilder(connectionString);
var provider = builder.Provider;
var dataSource = builder.DataSource;
var initialCatalog = builder["Initial Catalog"];
var userID = builder["User ID"];
var password = builder["Password"];

Note that for an OLE DB connection string, only the standard cross-provider properties have strongly-typed property names, all the rest are accessed via the indexer.