How to numbers to string when filtering datagridview

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Hi I get this is Error when I search with employee number instead of something else i.e name or email address Missing operand after 'Employee_ID ' operator? Please assist in providing guideline for the rightway of filtering gridview

private void txtSearch_KeyUp(object sender, KeyEventArgs e)
       {
           string outputInfo = "";
           string[] keyWords = txtSearch.Text.Split(' ');


           try {

               foreach (string word in keyWords)
               {
                   if (outputInfo.Length == 0)
                   {

                       /*Convert Employee number to string if search text is numbers*/
                      outputInfo = "(Firstname LIKE '%" + word + "%' OR LastName LIKE '%" +
                           word + "%' OR Emailaddress LIKE '%" + word + "%' OR GID LIKE '%" + word + "%' OR '" + string.Format("'Employee_ID LIKE '%" + word + "%')");


                   }
                   else
                   {
                       /*Convert Employee number to string if search text is numbers*/
                       outputInfo = "(Firstname LIKE '%" + word + "%' OR LastName LIKE '%" +
                           word + "%' OR Emailaddress LIKE '%" + word + "%' OR GID LIKE '%" + word + "%' OR '" + string.Format("'Employee_ID LIKE '%" + word.ToString() + "%')");


                   }
               }

               //Applies the filter to the DataView
               myView.RowFilter = outputInfo.ToString();

           }catch(Exception ex){
               MessageBox.Show("Result " + ex.Message.ToString() + " Not Found");
           }


       }

What I have tried:

I have tried to convert Employee_ID to string not sure if i am doing it right

outputInfo = "(Firstname LIKE '%" + word + "%' OR LastName LIKE '%" +
                            word + "%' OR Emailaddress LIKE '%" + word + "%' OR GID LIKE '%" + word + "%' OR '" + string.Format("'Employee_ID LIKE '%" + word + "%')");

Posted 2-Mar-17 23:56pm

Member 7763261

Updated 6-Mar-17 23:02pm

Afzaal Ahmad Zeeshan

v2

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Graeme_Grant · Accepted Answer · 2017-03-03T00:37:00

Solution 1

OR '" + string.Format("'Employee_ID

Looks like extra single quotes after OR and before Employee_ID .

Posted 3-Mar-17 0:37am

Graeme_Grant

Comments

Member 7763261 3-Mar-17 6:58am

@Graeme_Grant

Thanks for your response. I have removed the extra quotes now I am getting this error "cannot perform like operation on system.double and system.string". The Employee_ID column I would like to convert to string is in a form of numbers from excel sheet as a db. am I converting the right way? Thanks for further assistance.

Graeme_Grant 3-Mar-17 7:08am

Yes, LIKE is a string operation. Double values you need to compare: =, !=, <, <=, >=, >.

Arvind Zamakia 3-Mar-17 7:16am

yes, i think this issue on query string

Member 7763261 7-Mar-17 3:28am

@Arvind Zamakia and @Graeme_Grant Thanks you so much for your assistance. I have managed to fix my query string. Actually the issue was in my Database since I am using excel. All I did was change Employee_ID to text. All is working fine now. Much thanks for assistance.

Member 7763261 · Accepted Answer · 2017-03-06T23:02:00

/*Convert Employee_ID column to string before using like */
outputInfo = "(Firstname LIKE '%" + word + "%' OR LastName LIKE '%" + word + "%' OR Emailaddress LIKE '%" + word + "%' OR GID LIKE '%" + word + "%' OR "+ string.Format("CONVERT(Employee_ID,'System.String')")+" LIKE '%" + word + "%')";

That works just fine. I hope someone finds it useful. Thanks all in advance for assistance