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Here I have one has two columns only.if first row of datatable has any special characters it will can i do this.
[no name] 30-Dec-14 2:13am
Use a loop and check for each cell data with the special characters that you want to check and perform your operation that you wanted to do.

I'm not sure what you mean by 'special characters' but if you want to trap control characters you can do something like this.

string MyString = "FirstLine\r\nSecondLine\t tabbed";
             if (MyString.Any(c => char.IsControl(c)))
                Console.WriteLine("Found Control character");
foreach (DataRow row in dt.Rows)
for (int i = 0; i < dt.Columns.Count; i++)
if(dt.Columns[i].DataType == typeof(string))
row[i] = ReplaceHexadecimalSymbols((string)row[i]);

my bad, i over looked it

static string ReplaceHexadecimalSymbols(string txt)
string r = "[\x00-\x08\x0B\x0C\x0E-\x1F\x26]";
return Regex.Replace(txt, r,"",RegexOptions.Compiled);
Maciej Los 2-Sep-15 2:22am
ReplaceHexadecimalSymbols? There's no inbuilt method to replace hexadecimal symbols. Did you forget to post this method?
dev_assault 6-Oct-15 10:20am
Thanks for correcting Maciej and the credit for this answer goes to this
although i faced it long back, so i knew the solution

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