Passing a null value to a SQL field using JavaScript

Question

Passing a null value to a SQL field using JavaScript

I am facing an issue where sending null from AngularJS/JavaScript to my C# controller does not actually set the field as null. How can I properly set a field as null from JavaScript?

$scope.formData.currentTempDocument = null

return $http({
    method: 'POST',
    url: rootURL + '/data/getdata',
    data: inputjsondata,
    dataType: 'text',
    processData: false,
    async: false,
    headers: {
        'Content-Type': 'application/json; charset=utf-8'
    }
}).then(function (response) {
    return response.data.EntityData;
});

javascript angularjs asp.net-mvc

Answer 1

Answer №1

To handle the absence of a field in the JSON data you submit, one effective approach is to set the value to be NULL if it is not included. When the field is present, extract the value from your request and process it accordingly. This strategy should help ensure smooth operations.

Your controller acts as the backend and handles incoming requests. Therefore, it is essential to implement logic within your controller that recognizes missing values in the JSON payload, indicating that they should be stored as null in the database. Defining a protocol specifying that any absent fields in the client's JSON must translate to null in the database can streamline this process.

Answer 2

To handle the absence of a field in the JSON data you submit, one effective approach is to set the value to be NULL if it is not included. When the field is present, extract the value from your request and process it accordingly. This strategy should help ensure smooth operations.

Your controller acts as the backend and handles incoming requests. Therefore, it is essential to implement logic within your controller that recognizes missing values in the JSON payload, indicating that they should be stored as null in the database. Defining a protocol specifying that any absent fields in the client's JSON must translate to null in the database can streamline this process.

Passing a null value to a SQL field using JavaScript

Answer №1

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