How To Validate Integer or Double Numeric values in Asp.Net?

To check Integer values

int intOutput = 0;
if (System.Int32.TryParse(TextBox1.Text, out intOutput))
{
Response.Write("Valid");
}
else
Response.Write("Not Valid");

To check Double values

double dblOutput = 0;
if (System.Double.TryParse(TextBox1.Text, out dblOutput))
{
Response.Write("Valid");
}
else
Response.Write("Not Valid");

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