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USING “VAR” NEEDLESSLY WHEN YOU KNOW THE DATA TYPE

ben lewis

With the introduction of MVC-style (model-view-controller) many developers turned to LINQ to retrieve a collection of values. In many instances, you don’t always know the result, and “var” helps you to avoid errors from your code if a null or a data type that you weren’t expecting is returned.lenovo support

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Faisal Pathan8y ago
you can use "var" datatype like this:
var Variable_Name = 0;

var Variable_Name = string.Empty;

var someList = newListMyModel.ChileModel>();
Do not use var when the actual type is not clear:
var myVar = UnknownResult();
here the type returned by the method can change as per coding so it can create error/bugs.When you know the return type,should use return datatype insted of var.