Zugriff auf Settings in Assembly

[Thomas Sparenberg]

Hallo!

Ich habe eine Anwendung die ein eigenes Assembly einbindet.

In diesem Assembly möchte ich auf die appconfig zugreifen (nicht die der Anwendung sondern die des Assemblys).

Leider erhalte ich nur beim Zugriff die Default-Werte zurück.

Was muß ich berücksichtigen um auf Konfigurationen welche sich z.B. in der Datei MyAssembly.dll.config befinden zugreifen zu können.

mfg
Thomas

[Andreas Kosch]

Hallo,

angenommen, im Verzeichnis der EXE befindet sich die ClassLibrary1.dll sowie die Konfigurationsdatei ClassLibrary1.dll.config:

<div style="font-family: Courier New; font-size: 10pt; color: black; background: white; border-top: windowtext 1pt solid; padding-top: 0pt; border-left: windowtext 1pt solid; padding-left: 0pt; border-right: windowtext 1pt solid; padding-right: 0pt; border-bottom: windowtext 1pt solid; padding-bottom: 0pt;"><p style="margin: 0px;"><span style="color: blue;">&lt;?</span><span style="color: #a31515;">xml</span><span style="color: blue;"> </span><span style="color: red;">version</span><span style="color: blue;">=</span>"<span style="color: blue;">1.0</span>"<span style="color: blue;"> </span><span style="color: red;">encoding</span><span style="color: blue;">=</span>"<span style="color: blue;">utf-8</span>"<span style="color: blue;"> ?&gt;</span></p><p style="margin: 0px;"><span style="color: blue;">&lt;</span><span style="color: #a31515;">configuration</span><span style="color: blue;">&gt;</span></p><p style="margin: 0px;"><span style="color: blue;">&nbsp; &lt;</span><span style="color: #a31515;">appSettings</span><span style="color: blue;">&gt;</span></p><p style="margin: 0px;"><span style="color: blue;">&nbsp; &nbsp; &lt;</span><span style="color: #a31515;">add</span><span style="color: blue;"> </span><span style="color: red;">key</span><span style="color: blue;">=</span>"<span style="color: blue;">EK</span>"<span style="color: blue;"> </span><span style="color: red;">value</span><span style="color: blue;">=</span>"<span style="color: blue;">Testeintrag</span>"<span style="color: blue;"> /&gt;</span></p><p style="margin: 0px;"><span style="color: blue;">&nbsp; &lt;/</span><span style="color: #a31515;">appSettings</span><span style="color: blue;">&gt;</span></p><p style="margin: 0px;"><span style="color: blue;">&lt;/</span><span style="color: #a31515;">configuration</span><span style="color: blue;">&gt;</span></p></div>

In diesem Fall kann die eigene Klassenbibliothek die config-Datei über ExeConfigurationFileMap auswählen:

<div style="font-family: Courier New; font-size: 10pt; color: black; background: white; border-top: windowtext 1pt solid; padding-top: 0pt; border-left: windowtext 1pt solid; padding-left: 0pt; border-right: windowtext 1pt solid; padding-right: 0pt; border-bottom: windowtext 1pt solid; padding-bottom: 0pt;"><p style="margin: 0px;"><span style="color: blue;">using</span> System;</p><p style="margin: 0px;"><span style="color: blue;">using</span> System.Collections.Generic;</p><p style="margin: 0px;"><span style="color: blue;">using</span> System.Text;</p><p style="margin: 0px;"><span style="color: green;">//</span></p><p style="margin: 0px;"><span style="color: blue;">using</span> System.Configuration;</p><p style="margin: 0px;">&nbsp;</p><p style="margin: 0px;"><span style="color: blue;">namespace</span> ClassLibrary1</p><p style="margin: 0px;">{</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; <span style="color: blue;">public</span> <span style="color: blue;">class</span> <span style="color: #2b91af;">Class1</span></p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; {</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: blue;">public</span> <span style="color: blue;">string</span> DoDefaultWork()</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; {</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: blue;">string</span> configValue = <span style="color: #2b91af;">String</span>.Empty;</p><p style="margin: 0px;">&nbsp;</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: #2b91af;">ExeConfigurationFileMap</span> aCF = <span style="color: blue;">new</span> <span style="color: #2b91af;">ExeConfigurationFileMap</span>();</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; aCF.ExeConfigFilename = <span style="color: #a31515;">"ClassLibrary1.dll.config"</span>; </p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: #2b91af;">Configuration</span> aCfg = <span style="color: #2b91af;">ConfigurationManager</span>.OpenMappedExeConfiguration(</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; aCF, <span style="color: #2b91af;">ConfigurationUserLevel</span>.None);</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: #2b91af;">AppSettingsSection</span> aSect = (<span style="color: #2b91af;">AppSettingsSection</span>)aCfg.GetSection(<span style="color: #a31515;">"appSettings"</span>);</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: blue;">if</span> (aSect != <span style="color: blue;">null</span>)</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; {</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; configValue = aSect.Settings[<span style="color: #a31515;">"EK"</span>].Value;</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; }</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: blue;">return</span> configValue;</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; }</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; }</p><p style="margin: 0px;">}</p></div>

Wenn die Windowsanwendung die Klassenbibliothek nutzt, liefert diese den aktuellen Eintrag aus der eigenen config zurück:

<div style="font-family: Courier New; font-size: 10pt; color: black; background: white; border-top: windowtext 1pt solid; padding-top: 0pt; border-left: windowtext 1pt solid; padding-left: 0pt; border-right: windowtext 1pt solid; padding-right: 0pt; border-bottom: windowtext 1pt solid; padding-bottom: 0pt;"><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: blue;">private</span> <span style="color: blue;">void</span> button1_Click(<span style="color: blue;">object</span> sender, <span style="color: #2b91af;">EventArgs</span> e)</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; {</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; ClassLibrary1.<span style="color: #2b91af;">Class1</span> aObj = <span style="color: blue;">new</span> ClassLibrary1.<span style="color: #2b91af;">Class1</span>();</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <span style="color: #2b91af;">MessageBox</span>.Show(aObj.DoDefaultWork());</p><p style="margin: 0px;">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; }</p></div>

[Thomas Sparenberg]

Danke!!!

Werde das gleich mal probieren.

mfg
Thomas