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i need help

Scheduled Pinned Locked Moved C#
databasehelpquestion
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  • M Offline
    M Offline
    Mohamed El Wehishy
    wrote on last edited by
    #1

    hi guys i have table in sqlserver database named tels has columns tels_no , tels_name , tels_cost ok i want to enter a no in a textbox in the application then auto it get data of this no and set this in two different textboxes one for tels_name and other for tels_cost how?????????? i do not know thanks, Mohamed El-Wehishy

    B H 3 Replies Last reply
    0
    • M Mohamed El Wehishy

      hi guys i have table in sqlserver database named tels has columns tels_no , tels_name , tels_cost ok i want to enter a no in a textbox in the application then auto it get data of this no and set this in two different textboxes one for tels_name and other for tels_cost how?????????? i do not know thanks, Mohamed El-Wehishy

      B Offline
      B Offline
      Blikkies
      wrote on last edited by
      #2

      You can use ADO.net or data set to get you data from DB.

      G 1 Reply Last reply
      0
      • B Blikkies

        You can use ADO.net or data set to get you data from DB.

        G Offline
        G Offline
        Greg Chelstowski
        wrote on last edited by
        #3

        Yeah, great answer. I'd mark it as "bestest ever" but the developers of this site probably never knew you'd come along...

        Blikkies wrote:

        You can use ADO.net or data set to get you data from DB.

        What the hell does that bring to anything? It's like somebody asked: "I'm having trouble fitting windows in my house, I know where I want them and I have a fitting kit for them" and you answered "You can use a hammer or its handle to bang nails into a wall." As for the author of the question, you'd be better off reading a book on C# and/or a tutorial online. Rome was not built in a day.

        var question = (_2b || !(_2b));

        B M 2 Replies Last reply
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        • G Greg Chelstowski

          Yeah, great answer. I'd mark it as "bestest ever" but the developers of this site probably never knew you'd come along...

          Blikkies wrote:

          You can use ADO.net or data set to get you data from DB.

          What the hell does that bring to anything? It's like somebody asked: "I'm having trouble fitting windows in my house, I know where I want them and I have a fitting kit for them" and you answered "You can use a hammer or its handle to bang nails into a wall." As for the author of the question, you'd be better off reading a book on C# and/or a tutorial online. Rome was not built in a day.

          var question = (_2b || !(_2b));

          B Offline
          B Offline
          Blikkies
          wrote on last edited by
          #4

          Greg Chelstowski wrote:

          What the hell does that bring to anything?

          at least i gave him something to google.

          1 Reply Last reply
          0
          • M Mohamed El Wehishy

            hi guys i have table in sqlserver database named tels has columns tels_no , tels_name , tels_cost ok i want to enter a no in a textbox in the application then auto it get data of this no and set this in two different textboxes one for tels_name and other for tels_cost how?????????? i do not know thanks, Mohamed El-Wehishy

            B Offline
            B Offline
            Blikkies
            wrote on last edited by
            #5

            SqlConnection conn = new SqlConnection(@"user id=sa; Password=pass; initial catalog=databaseName; Data source=localhost");
            conn.Open();
            SqlCommand cmd = conn.CreateCommand();
            cmd.CommandText = "SELECT * FROM Tabel WHERE tels_no = '"+textbox1.Text.Replace("'","")+"'";
            SqlDataReader reader = cmd.ExecuteReader();
            while(reader.Read())
            {
            TextBox2.Text = reader["tels_name"].ToString();
            }

            Use following namespaces: using System.Data; using System.Data.SqlClient;

            M 1 Reply Last reply
            0
            • G Greg Chelstowski

              Yeah, great answer. I'd mark it as "bestest ever" but the developers of this site probably never knew you'd come along...

              Blikkies wrote:

              You can use ADO.net or data set to get you data from DB.

              What the hell does that bring to anything? It's like somebody asked: "I'm having trouble fitting windows in my house, I know where I want them and I have a fitting kit for them" and you answered "You can use a hammer or its handle to bang nails into a wall." As for the author of the question, you'd be better off reading a book on C# and/or a tutorial online. Rome was not built in a day.

              var question = (_2b || !(_2b));

              M Offline
              M Offline
              Mohamed El Wehishy
              wrote on last edited by
              #6

              :laugh: yesssssss man you are right sorry for this silly question Mohamed El-Wehishy

              1 Reply Last reply
              0
              • B Blikkies

                SqlConnection conn = new SqlConnection(@"user id=sa; Password=pass; initial catalog=databaseName; Data source=localhost");
                conn.Open();
                SqlCommand cmd = conn.CreateCommand();
                cmd.CommandText = "SELECT * FROM Tabel WHERE tels_no = '"+textbox1.Text.Replace("'","")+"'";
                SqlDataReader reader = cmd.ExecuteReader();
                while(reader.Read())
                {
                TextBox2.Text = reader["tels_name"].ToString();
                }

                Use following namespaces: using System.Data; using System.Data.SqlClient;

                M Offline
                M Offline
                Mirko1980
                wrote on last edited by
                #7

                ARGH!! Never build SQL queries concatenating strings! Have you never heard of SQL injection attacks?

                B 2 Replies Last reply
                0
                • M Mohamed El Wehishy

                  hi guys i have table in sqlserver database named tels has columns tels_no , tels_name , tels_cost ok i want to enter a no in a textbox in the application then auto it get data of this no and set this in two different textboxes one for tels_name and other for tels_cost how?????????? i do not know thanks, Mohamed El-Wehishy

                  H Offline
                  H Offline
                  Henry Minute
                  wrote on last edited by
                  #8

                  Please, please, purrrrleeees stop using "I need help" for every topic line. Use something like "Problem retrieving data", or similar. Errm...., obviously not if it's a Graphics question but you know what I mean. :)

                  Henry Minute Do not read medical books! You could die of a misprint. - Mark Twain Girl: (staring) "Why do you need an icy cucumber?" “I want to report a fraud. The government is lying to us all.”

                  1 Reply Last reply
                  0
                  • M Mirko1980

                    ARGH!! Never build SQL queries concatenating strings! Have you never heard of SQL injection attacks?

                    B Offline
                    B Offline
                    Blikkies
                    wrote on last edited by
                    #9

                    This is an example code, not code that im using. instead of Preaching to me, Give this guy a solution or back off.

                    1 Reply Last reply
                    0
                    • M Mirko1980

                      ARGH!! Never build SQL queries concatenating strings! Have you never heard of SQL injection attacks?

                      B Offline
                      B Offline
                      Blikkies
                      wrote on last edited by
                      #10

                      Secondly i USED REPLACE IN THE QUERY

                      C 1 Reply Last reply
                      0
                      • B Blikkies

                        Secondly i USED REPLACE IN THE QUERY

                        C Offline
                        C Offline
                        Christian Graus
                        wrote on last edited by
                        #11

                        1 - your code does NOT stop injection attacks 2 - if you give people here code, they are likely to use it verbatim, not ever understand it 3 - why give people examples they shouldn't use ?

                        Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

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