WINDOWS FORMS: CHANGE CONNECTIONSTRING AT RUNTIME WITH APP.CONFIG IN C#

How to change ConnectionString dynamically in C#

Step 1: Click New Project, then select Visual C# on the left, then Windows and then select Windows Forms Application. Name your project "DynamicallyConnectionString" and then click OK

Step 2: Design your form as below

Step 3: Add a connection string to the app.config file as below

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<configuration>   <connectionStrings>     <add name="cn" connectionString="Data Source=.;Initial Catalog=Northwind;User ID=sa;Password=123@qaz?;" providerName="System.Data.SqlClient"/>   </connectionStrings> </configuration>

tham khảo tại đây.

WINDOWS FORMS: CHANGE CONNECTIONSTRING AT RUNTIME WITH APP.CONFIG IN C# 2019-06-25T11:08:00+07:00 Rating: 4.5 Diposkan Oleh: http://pdunoteit.blogspot.com/