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isitha
isitha
Last Activity: Jul 15 '11, 03:13 PM
Joined: Dec 15 '10
Location: Colombo , Sri lanka
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  • isitha
    started a topic how to update/refresh a dataGridView in a class by a different class
    in C Sharp

    how to update/refresh a dataGridView in a class by a different class

    guyz,
    i have a windows form class called "fuel" in this class i have used datagridview which is called "dataGridView1" . It shows all the entries i insert to the database by using form "fuel".At there it woks fine. there is a comboBox which is called as cmbFuelType and when i select the fuel as oil_2T it direct to an another windows form. Then the problem is i can`t get update that dataGridView1 from oil_2T form...
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    • isitha
      replied to Invalid attempt to read when no data is present.
      in C Sharp
      hey christian,
      it workd pretty nicely....thnx

      regards
      Isitha
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      • isitha
        started a topic Invalid attempt to read when no data is present.
        in C Sharp

        Invalid attempt to read when no data is present.

        Code:
        String SQL1 = @ " select EmpID,ShiftID,EndReading from FinalCalc]"; 
DBHandlingqqq obj = new DBHandlingqqq();
SqlDataReader myDataReaderWW = obj.isExist(SQL1);
String dataemp  = myDataReaderWW.GetString(0);

        Here`s the DBHandlingqqq class....

        Code:
         class DBHandlingqqq
    {
       
SqlConnection conn = new SqlConnection("Data Source=ISIM-PC\\SQLEXPRESS;Initial
        ...
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        • isitha
          replied to can`t use && in if statement
          in C Sharp
          guyz sry 4 da late reply,

          bentley :- thanx 4 ur help and i saw ur dock test article n downloaded ur examples...hope 2 use them in my projects....and also i gonna report microsoft abt U....suspect 4 software crimes...ha! ha! [i jst kidding]

          @subin :- thnx guy it workd pretty nice...n thnx agn 4 accepting my frnd req.
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          • isitha
            started a topic can`t use && in if statement
            in C Sharp

            can`t use && in if statement

            Code:
             
 if (myDataReader.GetString(0) = empID && myDataReader.GetString(1) = shiftID && myDataReader.GetFloat(2) = Final11)
            guyz y cant i do these??
            here empID ,shiftID are originally int values in the FINALCALC table (those are the values to be expected to retrieve by myDataReader.Ge tString(0) n myDataReader.Ge tString(1)). But variable empID and shiftID are String variables which i take from two input...
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            • isitha
              started a topic cant execute the combobox
              in C Sharp

              cant execute the combobox

              when i try to send selected value of my combo box as "10 to 6" to the database it gives the following error.but the ShiftName column is not a primary key....what shud i do nw.

              "Column 'ShiftName' is constrained to be unique. Value '10 to 6' is already present."
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              • isitha
                replied to when i try to convert a value member to int32 says wrong data type
                in C Sharp
                thnx CHRISTIAN it worked pretty well n i ve made some changes to my DB also......hav a gud day..
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                • isitha
                  replied to when i try to convert a value member to int32 says wrong data type
                  in C Sharp
                  to EARNEST

                  thnx EARNEST....i think da problem is with my database table....bt still i cudn`t get it resolved....thn x agn
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                  • isitha
                    started a topic when i try to convert a value member to int32 says wrong data type
                    in C Sharp

                    when i try to convert a value member to int32 says wrong data type

                    Code:
                    String empID = cmbEmp.ValueMember.ToString();
int empIDint = Convert.ToInt16(empID);
                    This`s the error i get "Input string was not in a correct format."
                    "when converting a string to date time, parse the string to take the date before putting each variable into the datetime object....."

                    guyz i dont understand what to do now...
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