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Editorial Team
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Asked: 2026-06-13T02:04:17+00:00

how to change connection string entity framework in runtime code in my appconfig file

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how to change connection string entity framework in runtime

code in my appconfig file :

<?xml version="1.0"?>
<configuration>
  <connectionStrings>
    <add name="RelationAtOfficeEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=.;Initial Catalog=RelationAtOffice;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient"/>
  </connectionStrings>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>

I want to change the following code :

    <?xml version="1.0"?>
<configuration>
  <connectionStrings>
    <add name="RelationAtOfficeEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=127.10.10.23,1356;Initial Catalog=RelationAtOffice;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient"/>
  </connectionStrings>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>

just data source changed.

How is it done?

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1 Answer

  1. Editorial Team

    When you instantiates your context it has parameter connectionString. You can change it there.

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