Validation problem in c#

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My problem is i want to check that the string should contain char 'space to ~' (CHAR 32 TO 126) and all other strings are invalid
for eg 'INSERT BLASE KSEM2200HPM' is valid string and 'INSERT BLASÉ KSEM2200HPM' is a invalid string
i have tried the regular expression to solve this problem '([^ -~])*' but not geting the proper result

Posted 21-Oct-12 21:21pm

Menon Santosh

Updated 21-Oct-12 21:22pm

v2

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Comments

Ambesha 22-Oct-12 3:23am

how you tried please share the code

Menon Santosh 22-Oct-12 3:28am

SELECT 'INSERT BLASE KSEM2200HPM' WHERE GName REGEXP '([^ -~])*'
i have tried this query in mysql, it should return false but it is returning true

Ambesha 22-Oct-12 3:35am

please add MYSQL and remove C# from queston category if you want to validate your string in mySql.

Menon Santosh 22-Oct-12 3:36am

if i get the solution in c# also it will also be welcome :)

3 solutions

Solution 2

i have solved it

C#

string strData1 = "'INSERT BLASÉ KSEM2200HPM";
            string strData = string.Empty;
            for (int i = 0; i < 256; i++)
            {
                if(!(i>=32 && i<= 126))
                strData += ((char)i).ToString();
            }
            int indexOf = strData1.IndexOfAny(strData.ToCharArray());
            if (indexOf == -1)            {

                MessageBox.Show("Valid chars");
            }
            else
            {
                MessageBox.Show(" contain invalid chars");
            }

Posted 21-Oct-12 22:31pm

Menon Santosh

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Zasky · Accepted Answer · 2012-10-21T22:41:00

Solution 3

Here's the regex if you want it, it matches the hex ascii character range:

bool m = Regex.IsMatch("INSERT BLASE", "^[\x20-\x7E]*$");

Posted 21-Oct-12 22:41pm

Zasky

Updated 21-Oct-12 23:02pm

v2

Comments

Menon Santosh 22-Oct-12 5:36am

good work

Valery Possoz · Accepted Answer · 2012-10-21T22:58:00

Solution 4

Hello

Here is another way to do it:

C#

string input = "INSERT BLASÉ KSEM2200HPM";

Match match = Regex.Match(input, "[^ -~]");

if (match.Success)
    Console.WriteLine("not ok.");
else
    Console.WriteLine("ok.");

Valery.

Posted 21-Oct-12 22:58pm

Valery Possoz

Comments

Menon Santosh 22-Oct-12 5:37am

good work

Valery Possoz 22-Oct-12 6:11am

thanks.