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ajinkya ragalwa
ajinkya ragalwa
Last Activity: Nov 28 '11, 06:26 AM
Joined: Feb 8 '11
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  • ajinkya ragalwa
    started a topic problem in updating data
    in C Sharp

    problem in updating data

    Hey guys,

    I have made an application that uses sql server to keep data and retrieve it when needed. Today me and my friend tried
    to update data of same record from different computers, it threw exception. I have read a lot about 'Optimistic concurrency' but to be honest, I don't know how to implement it. Can anyone please help me or atleast guide me
    on how should i implement it.

    Thanks and regards
    ...
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    • ajinkya ragalwa
      started a topic How to handle following exceptions
      in C Sharp

      How to handle following exceptions

      Hey guys,


      I have an application that connects to DB that is on a remote PC.
      Problem is after a couple of minutes or so, it starts throwing exception.

      1. The specified network name is no longer available.
      2. Connection was forcibly closed by remote host.
      3. connection was closed by software on the remote machine.


      I couldn't find any solution for these problems.
      ...
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      • ajinkya ragalwa
        started a topic How to store data retrieved from sql DB into a file
        in C Sharp

        How to store data retrieved from sql DB into a file

        Hey guys,


        I am stuck at a point at this stage. I have made an application that shows data from sql server DB.
        Now, I want to make a change. The change is that whatever data is being displayed in datagrid view,
        i should b able to store it in a file. It can be a simple document file or a pdf or excel.
        Do you have any suggestions on how can i do it?



        Thanks
        Ajinkya
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        • ajinkya ragalwa
          started a topic how to create transaction id while inserting, updating data
          in C Sharp

          how to create transaction id while inserting, updating data

          Hey Guys,

          I have gotta problem. I want to store data into database(which i can do) from C# application.
          Now the thing is every time I insert or update, I want my application to catch that transaction,
          create a 'TRANSACTION ID', and store it in table. So that it would be easier for me to update
          and delete the data.
          Any idea how can I do this?


          Thanks
          Ajinkya
          See more | Go to post
          • ajinkya ragalwa
            started a topic How to delete row from datagridview and update database?
            in C Sharp

            How to delete row from datagridview and update database?

            Hey guys,

            I have written a code that could delete selected row in data grid view. I gives lots of errors.

            Let me paste my code.

            Code:
            for (int i = 0; i < dataGridView1.Rows.Count; i++)
                    {

                        DataGridViewRow dr = dataGridView1.Rows[i];
                        if (dr.Selected == true)
                        {
            ...
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            Last edited by Niheel; Mar 5 '11, 08:22 PM.
            • ajinkya ragalwa
              started a topic Object reference Not set to instance of an object
              in C Sharp

              Object reference Not set to instance of an object

              Hey Guys,

              I am now loosing my cool over this problem.
              let me paste my code an then i'll explain my problem.

              Here's my code :


              Code:
                if (rn < ds1.Tables["Company"].Rows.Count-1)
                {
                    rn = rn + 1;
                    textBox1.Text = ds1.Tables["Company"].Rows[rn].ItemArray[0].ToString();
              ...
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              • ajinkya ragalwa
                started a topic How to rectify Exception 'Index Out of Range'
                in C Sharp

                How to rectify Exception 'Index Out of Range'

                Hey guys,


                I am making an application that generates 'ID'
                automatically. Let me post part of my code for ya all.



                Code:
                dt = dB1DataSet1.Tables["company"];
            len = dt.Rows.Count + 1;
            dr = dt.Rows[len];
            code = dr["C_ID"].ToString();
            cde = code.Substring(1, 2);
            ctr = Convert.ToInt32(cde);
                ...
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                • ajinkya ragalwa
                  started a topic How to pass an IP address in connection string?
                  in C Sharp

                  How to pass an IP address in connection string?

                  I have a database that is stored on a remote machine.
                  In my application i have used connection string with
                  IP address of that remote machine. Now, the problem is
                  every time the remote machine is turned on it has a new
                  IP address. Is there any way that i can get that newly
                  generated IP address stored in connection string automatically
                  every time i try to connect to database.

                  Here's my connection string...
                  See more | Go to post
                  Last edited by Niheel; Feb 24 '11, 05:12 PM.
                  • ajinkya ragalwa
                    started a topic How to delete selected row from data grid view and update the database?
                    in C Sharp

                    How to delete selected row from data grid view and update the database?

                    I need a code that would delete the row from not only from
                    grid view but also from the table.

                    I am able to delete the row from grid view but its not getting deleted
                    from table.

                    Any suggestions on how to do it.
                    See more | Go to post
                    Last edited by Niheel; Feb 24 '11, 08:58 AM.
                    • ajinkya ragalwa
                      replied to Help with structures in C#
                      in C Sharp
                      I have got only one file. But do you think it has anything to do with file? and hey i have tried running it and it ran well except for it did not show the text that i had selected in form1.
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                        Leave a comment:

                      • ajinkya ragalwa
                        replied to Help with structures in C#
                        in C Sharp
                        hey leito,

                        thanks for your reply.

                        And yes i am sure that i added "s1 = comboBox1.Text" .

                        But it still ain't working.
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                          Leave a comment:

                        • ajinkya ragalwa
                          replied to How to validate a date of birth (age) if minimum is 18 in C#
                          in C Sharp
                          Yeah.
                          I think rabbit is right.
                          Try declaring DateOfBirth globally.
                          It might help.
                          I might be wrong.


                          Regards
                          Ajinkya
                          See more | Go to post

                            Leave a comment:

                          • ajinkya ragalwa
                            started a topic Help with structures in C#
                            in C Sharp

                            Help with structures in C#

                            Hey guys,

                            I have two forms, form1 and form2.
                            My form1 has a combo box and a button.
                            Here's form1 code.

                            Form1

                            Code:
                            public partial class Form1 : Form
    {
        bool s;
        public Form1()
        {
            InitializeComponent();
            s1 = comboBox1.Text;

        }

        private void Form1_Load(object sender, EventArgs
                            ...
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                            • ajinkya ragalwa
                              started a topic declare a global variable
                              in C Sharp

                              declare a global variable

                              Need to know, how can i declare a variable as global
                              in a form and if i can use it in another.

                              (I hope this isn't a vague question)


                              Thanks and regards
                              See more | Go to post
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