Some organizations require that their external facing sign-in page only be designed to allow FBA or Forms Based Authentication users to log in to a site collection. This requirement can be met by removing the default "Window Authentication" sign-in option from the sign-in page. Below are the instructions for making this change to the PremierPoint Solutions default ExCM sign-in page.
Here is an example of the default sign-In page with the Windows Authentication option.
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To remove the Windows Authentication option you will first need to browse out to C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions15TEMPLATELAYOUTSSPSolutionsExCM
Next, you will need to make a copy of the existing SignIn.aspx page and save it, so that you maintain an original.
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Now, open the "SignIn.aspx" page and do a search for "RepeaterAuthenticationProviders".
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Once you finish the search you will then need to remove the <%$Resources:excm,Page_SignIn_SignInUsing%> from quotations in the fifth SharePoint line and then completely delete the sixth line <%# DataBinder.Eval(Container.DataItem, "ClaimProviderName") %></a>
<asp:Repeater ID="RepeaterAuthenticationProviders" DataSourceID="ExtranetAuthenticationProvidersDS" runat="server">
<ItemTemplate>
<div class="excm_signin_action">
<a href="javascript:AuthenticationProviderSignIn('<%# DataBinder.Eval(Container.DataItem, "ClaimProviderName") %>')">
<SharePoint:EncodedLiteral runat="server" EncodeMethod="htmlEncode" Text="<%$Resources:excm,Page_SignIn_SignInUsing%>" />
<%# DataBinder.Eval(Container.DataItem, "ClaimProviderName") %></a>
</div>
Below is the section with the appropriate changes for you to copy:
<asp:Repeater ID="RepeaterAuthenticationProviders" DataSourceID="ExtranetAuthenticationProvidersDS" runat="server">
<ItemTemplate>
<div class="excm_signin_action">
<a href="javascript:AuthenticationProviderSignIn('<%# DataBinder.Eval(Container.DataItem, "ClaimProviderName") %>')">
<SharePoint:EncodedLiteral runat="server" EncodeMethod="htmlEncode" Text="" />
</div>
Once you have made the changes you will need to save the file then browse out to your sign-in page to verify the change was made.
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