如何转换web.config值？

Question

I am trying to make different config files for different cases (debug,release, etc.) and I would like to change some settings for different builds.

<configuration>
<applicationSettings>
<Program1.Properties.Settings>
  <setting name="CustomerId" serializeAs="String">
    <value>Custormer1-13256</value>
  </setting>
</Program1.Properties.Settings>
</applicationSettings>
</configuration>

How can I change the value inside the tag to something else?

   ex. <value>Customer2-343242</value>

Answer 1

Add xdt:Locator="Match(name)" to Erwin's answer

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<applicationSettings>
    <Program1.Properties.Settings>
        <setting name="CustomerId" serializeAs="String" xdt:Transform="Replace" 
                                                             xdt:Locator="Match(name)">
            <value>Customer2-343242</value>
        </setting>
    </Program1.Properties.Settings>
</applicationSettings>

Answer 2

Change your config to look like this:

<configuration>
  <applicationSettings>
    <Program1.Properties.Settings>
      <setting name="CustomerId" serializeAs="String">
        <value>Custormer1-13256</value>
      </setting>
    </Program1.Properties.Settings>

  </applicationSettings>
</configuration>

And make a transform like this:

<configuration>
  <applicationSettings>
    <Program1.Properties.Settings xdt:Transform="Replace">
      <setting name="CustomerId" serializeAs="String">
        <value>Custormer1-13256</value>
      </setting>
    </Program1.Properties.Settings>
  </applicationSettings>
</configuration>

So you aren't really "changing" the value inner text so much as having it choose the right value for each build configuration you create.

Answer 3

This works:

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
    <applicationSettings>
        <Program1.Properties.Settings>
            <setting name="CustomerId" serializeAs="String" xdt:Locator="Match(name)" >
                <value xdt:Transform="Replace">Customer2-343242</value>
            </setting>
        </Program1.Properties.Settings>
    </applicationSettings>
</configuration>

Answer 4

Use Web config transformations :

<setting name="CustomerId" serializeAs="String" xdt:Transform="Replace">
  <value>Customer2-343242</value>
</setting>

Answer 5

You need to put the transform in the full path for your Web.Config XML

<applicationSettings>
  <Program1.Properties.Settings>
    <setting name="CustomerId">
      <value xdt:Transform="Replace">Customer2-343242</value>
    </setting>
  </Program1.Properties.Settings>
</applicationSettings>

Then test it using the Preview Transform menu option