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Beside “Debug” there is a dropdown, click and select “Configuration Manager”. In “Active Solution Configuration” select “New” then add a name like “Testing” and “Select copy settings from” preferrably copy settings from Release.

Right click “web.config” and select “Add Config Transform”. This will create Web.Testing.config.


<appSettings>
    <add key="webpages:Version" value="3.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
</appSettings>


Create another config file like AppSettings.config and in web.config > appSettings, add configSource attribute and specify the file

<appSettings configSource="AppSettings.config"></appSettings>

This is useful in public repositories and other scenarious where you don’t want to share your other credentials but to specific people only.
Exclude the AppSettings.config from repository

When uploading file to IIS greater than default will lead to
Exception Details: System.Web.HttpException: Maximum request length exceeded.

To solve this problem, we need specify our upload limit the server is allowed to accept say 5MB (1024×5000)
In Web.config > system.web add
<httpRuntime maxRequestLength="5120000" executionTimeout="3600" />

In Web.config > system.webServer
<security>
    <requestFiltering>
        <requestLimits maxAllowedContentLength="5120000" />
    </requestFiltering>
</security>

Note: maxRequestLength and maxAllowedContentLength must match

string path = Server.MapPath("/Uploads/Users/xxxxx/file.png");
if ((System.IO.File.Exists(path)))
{
System.IO.File.Delete(path);
}

@Html.PagedListPager(
Model.Jobs,
page => Url.Action("Jobs",
new { controller = "Company", area = "Admin", page, sortOrder = ViewBag.CurrentSort, currentFilter = ViewBag.CurrentFilter }),
new PagedListRenderOptions
{
LinkToFirstPageFormat = "<<",
LinkToLastPageFormat = ">>",
LinkToNextPageFormat = "→",
LinkToPreviousPageFormat = "←",
UlElementClasses = new[] { "pagination","pagination-theme" }
}
)

More info about PagedList.Mvc https://github.com/TroyGoode/PagedList/blob/master/src/PagedList.Mvc/PagedListRenderOptions.cs

Another method is using scope, pass TransactionScopeAsyncFlowOption.Enabled to TransactionScope() constructor to allow async saving method

More ways here
https://msdn.microsoft.com/en-us/library/dn456843(v=vs.113).aspx

For example, a Company has many Jobs, in Company Configuration add
HasMany(c => c.Jobs)
.WithRequired(j => j.Company)
.HasForeignKey(j => j.CompanyId);
Without the above configuration, Company navigation property of Job will not work.

While in Job Configuration
HasRequired(j => j.Company)
.WithMany(c => c.Jobs)
.HasForeignKey(j => j.CompanyId);
Add the 2 configuration so that their navigational properties will work.

Glipse is a tool to monitor the performance of web app.

install-package glimpse.mvc5
Install-Package Glimpse.EF5

If you encounter this problem
Unable to cast object of type 'Glimpse.Ado.AlternateType.GlimpseDbConnection' to type 'System.Data.SqlClient.SqlConnection'.
Uninstall Glimpse.EF5 and install
Install-Package Glimpse.EF6
You can view Glimpse endpoint in /glimpse.axd