Sharepoint 3.0 How can I find the datasource to one of the webparts

Hi,
this depends on how this web part is built. There are a couple of different ways, how the web part connects to a datasource - it could be a connection string inside the web.config of the SharePoint application, a link to a datasource file, an entry in a configuration list or even hard coded inside the web part.
Is this a custom built / developed web part or an Out-Of-The-Box SharePoint web part?

KR
Rainer

It is custom built.

Hi,
OK, then the only chance for us experts (without access to the server itself) would be to decompile the web part (which should have been deployed using a SharePoint solution file (wsp)) to get an idea, where this data connection string is stored.

You might be able to have a look inside the web.config of your SharePoint application, if there are any entries inside the connectionstring node or a custom entry in appSettings which looks like a data connection string.

HTH
Rainer

The web part file only seems to contain xml:

<?xml version="1.0" encoding="utf-8"?>
<webParts>
      <webPart xmlns="http://schemas.microsoft.com/WebPart/v3">
            <metaData>
                  <type name="BowtieIntranetWebPart.HR.TimeSheetEdit, BowtieIntranetWebPart, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
                  <importErrorMessage>Cannot import this Web Part.</importErrorMessage>
            </metaData>
            <data>
                  <properties>
                        <property name="Title" type="string">TimeSheetEdit</property>
                  <property name="Description" type="string"></property></properties>
            </data>
      </webPart>
</webParts>

When our database server crashed, we lost the login that SharePoint uses to access the database.  I just re-added the user name and password to SQL server and it worked fine.