How to Safely Convert Strings to Integers for Database Storage?

Convert the string to an integer for database storage

When processing the database, it is usually necessary to convert the string value from the input form or the user input to an integer to store it. This can be implemented using the

or

method. Int32.Parse Int32.TryParse int32.parse method

The method converts the specified string to an integer. If the conversion is successful, it will return an integer; otherwise, it will trigger abnormal.

grammar: Int32.Parse FormatException

Example:

<code class="language-csharp">int x = Int32.Parse(string);</code>

int32.tryparse method

Try to convert the specified string into an integer. If the conversion is successful, it will return

and assign an integer value to the output parameter; if the conversion fails, it will return

<code class="language-csharp">int x = Int32.Parse(TextBoxD1.Text);</code>

.

grammar:

Int32.TryParse Example: true false

The difference between the between parse and tryparser The main difference between

and

<code class="language-csharp">int x;
bool result = Int32.TryParse(string, out x);</code>

is that

will throw abnormalities when failed, and returns and will not throw an exception. This allows more elegantly to deal with conversion attempts.

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