Dividing web.config into multiple files in asp.net

When you are having different people working on one project remotely you will get some problem with web.config, as everybody was having different version of web.config. So at that time once you check in your web.config with your latest changes the other people have to get latest that web.config and made some specific changes as per their local environment. Most of people who have worked things from remotely has faced that problem. I think most common example would be connection string and app settings changes.

For this kind of situation this will be a best solution. We can divide particular section of web.config into the multiple files. For example we could have separate ConnectionStrings.config file for connection strings and AppSettings.config file for app settings file.

Most of people does not know that there is attribute called ‘configSource’ where we can  define the path of external config file and it will load that section from that external file. Just like below.

<configuration>
 <appSettings configSource="AppSettings.config"/>
 <connectionStrings configSource="ConnectionStrings.config"/>
</configuration>

And you could have your ConnectionStrings.config file like following.

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Event handler generation in Visual Studio 2012

Note: This post will be a part of Visual Studio 2012 feature series.

There are lots of new features there in visual studio 2012. Event handler generation is one of them. In earlier version of visual studio there was no way to create event handler from source view directly.  Now visual studio 2012 have event handler generation functionality.

So if you are editing an event view in source view intellisense will display add new event handler template and once you click on it. It will create a new event handler in the cs file. It will also put a eventhandler name against event name so you don’t need to write that.

So, let’s take a simple example of button click event so once I write onclick attribute their smart intellisense will pop up
.


Now once you click on <Create New Event> It will create event handler in .cs file like following.

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Multiple file upload with asp.net 4.5 and Visual Studio 2012

Note: This post will be part of Visual Studio 2012 feature series.

In earlier version of ASP.NET there is no way to upload multiple files at same time. We need to use third party control or we need to create custom control for that. But with asp.net 4.5 now its possible to upload multiple file with file upload control.

With ASP.NET 4.5 version Microsoft has enhanced file upload control to support HTML5 multiple attribute. There is a property called ‘AllowedMultiple’ to support that attribute and with that you can easily upload the file. So what we are waiting for!! It’s time to create one example.
On the default.aspx file I have written following.

<asp:FileUpload ID="multipleFile" runat="server" AllowMultiple="true" />
<asp:Button ID="uploadFile" runat="server" Text="Upload files" onclick="uploadFile_Click"/>

Here you can see that I have given file upload control id as multipleFile and I have set AllowMultiple file to true. I have also taken one button for uploading file.For this example I am going to upload file in images folder. As you can see I have also attached event handler for button’s click event. So it’s time to write server side code for this. Following code is for the server side.

protected void uploadFile_Click(object sender, EventArgs e)
{
    if (multipleFile.HasFiles)
    {
        foreach(HttpPostedFile uploadedFile in multipleFile.PostedFiles)
        {
            uploadedFile.SaveAs(System.IO.Path.Combine(Server.MapPath("~/Images/"),uploadedFile.FileName));
            Response.Write("File uploaded successfully");
        }
    }
}

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