how can i add data from barcode scanner to Datagridview Row by Row












0














this is my code to show the data in textboxesso am trying to make an Casher system but am having trouble showing the data Row by Row,evertime the user scans an item i want the datagridview to show it






c# datagridview barcode







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  • Possible duplicate of barcode scanning
    – Tedinoz
    Nov 23 '18 at 4:14
















0














this is my code to show the data in textboxesso am trying to make an Casher system but am having trouble showing the data Row by Row,evertime the user scans an item i want the datagridview to show it






c# datagridview barcode







share|improve this question
























  • Possible duplicate of barcode scanning
    – Tedinoz
    Nov 23 '18 at 4:14














0












0








0







this is my code to show the data in textboxesso am trying to make an Casher system but am having trouble showing the data Row by Row,evertime the user scans an item i want the datagridview to show it






c# datagridview barcode







share|improve this question















this is my code to show the data in textboxesso am trying to make an Casher system but am having trouble showing the data Row by Row,evertime the user scans an item i want the datagridview to show it






c# datagridview barcode




c# datagridview barcode






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 23 '18 at 2:38

























asked Nov 23 '18 at 2:32









saleh abbas

11




11












  • Possible duplicate of barcode scanning
    – Tedinoz
    Nov 23 '18 at 4:14


















  • Possible duplicate of barcode scanning
    – Tedinoz
    Nov 23 '18 at 4:14
















Possible duplicate of barcode scanning
– Tedinoz
Nov 23 '18 at 4:14




Possible duplicate of barcode scanning
– Tedinoz
Nov 23 '18 at 4:14












1 Answer
1






active

oldest

votes


















0














try this
form load:



        private void Form1_Load(object sender, EventArgs e)

         {

            /*form load*/



            dataGridView1.Columns.Add("Column1", "qty");

            dataGridView1.Columns.Add("Column2", "price");





         }







        int RowIndex = 0;

        private void txtBarcode_KeyDown(object sender, KeyEventArgs e)

        {



            if (e.KeyCode==Keys.Enter)

            {  /* .....

                .....

                ..... Sql connection*/



                while (reader.Read()) {



                    dataGridView1.Rows.Add();

                    dataGridView1.Rows[RowIndex].Cells[0].Value = reader.GetString(2);

                    dataGridView1.Rows[RowIndex].Cells[1].Value = reader.GetString(3);





                    RowIndex++;



                }

                reader.Close();



            }

        }





share|improve this answer























  • am getting this error "System.InvalidOperationException: 'No row can be added to a DataGridView control that does not have columns. Columns must be added first.'" after i scan a product
    – saleh abbas
    Nov 23 '18 at 12:39










  • try updated answer
    – Dhanushka Dayawansha
    Nov 23 '18 at 15:10











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1 Answer
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0














try this
form load:



        private void Form1_Load(object sender, EventArgs e)

         {

            /*form load*/



            dataGridView1.Columns.Add("Column1", "qty");

            dataGridView1.Columns.Add("Column2", "price");





         }







        int RowIndex = 0;

        private void txtBarcode_KeyDown(object sender, KeyEventArgs e)

        {



            if (e.KeyCode==Keys.Enter)

            {  /* .....

                .....

                ..... Sql connection*/



                while (reader.Read()) {



                    dataGridView1.Rows.Add();

                    dataGridView1.Rows[RowIndex].Cells[0].Value = reader.GetString(2);

                    dataGridView1.Rows[RowIndex].Cells[1].Value = reader.GetString(3);





                    RowIndex++;



                }

                reader.Close();



            }

        }





share|improve this answer























  • am getting this error "System.InvalidOperationException: 'No row can be added to a DataGridView control that does not have columns. Columns must be added first.'" after i scan a product
    – saleh abbas
    Nov 23 '18 at 12:39










  • try updated answer
    – Dhanushka Dayawansha
    Nov 23 '18 at 15:10
















0














try this
form load:



        private void Form1_Load(object sender, EventArgs e)

         {

            /*form load*/



            dataGridView1.Columns.Add("Column1", "qty");

            dataGridView1.Columns.Add("Column2", "price");





         }







        int RowIndex = 0;

        private void txtBarcode_KeyDown(object sender, KeyEventArgs e)

        {



            if (e.KeyCode==Keys.Enter)

            {  /* .....

                .....

                ..... Sql connection*/



                while (reader.Read()) {



                    dataGridView1.Rows.Add();

                    dataGridView1.Rows[RowIndex].Cells[0].Value = reader.GetString(2);

                    dataGridView1.Rows[RowIndex].Cells[1].Value = reader.GetString(3);





                    RowIndex++;



                }

                reader.Close();



            }

        }





share|improve this answer























  • am getting this error "System.InvalidOperationException: 'No row can be added to a DataGridView control that does not have columns. Columns must be added first.'" after i scan a product
    – saleh abbas
    Nov 23 '18 at 12:39










  • try updated answer
    – Dhanushka Dayawansha
    Nov 23 '18 at 15:10














0












0








0






try this
form load:



        private void Form1_Load(object sender, EventArgs e)

         {

            /*form load*/



            dataGridView1.Columns.Add("Column1", "qty");

            dataGridView1.Columns.Add("Column2", "price");





         }







        int RowIndex = 0;

        private void txtBarcode_KeyDown(object sender, KeyEventArgs e)

        {



            if (e.KeyCode==Keys.Enter)

            {  /* .....

                .....

                ..... Sql connection*/



                while (reader.Read()) {



                    dataGridView1.Rows.Add();

                    dataGridView1.Rows[RowIndex].Cells[0].Value = reader.GetString(2);

                    dataGridView1.Rows[RowIndex].Cells[1].Value = reader.GetString(3);





                    RowIndex++;



                }

                reader.Close();



            }

        }





share|improve this answer














try this
form load:



        private void Form1_Load(object sender, EventArgs e)

         {

            /*form load*/



            dataGridView1.Columns.Add("Column1", "qty");

            dataGridView1.Columns.Add("Column2", "price");





         }







        int RowIndex = 0;

        private void txtBarcode_KeyDown(object sender, KeyEventArgs e)

        {



            if (e.KeyCode==Keys.Enter)

            {  /* .....

                .....

                ..... Sql connection*/



                while (reader.Read()) {



                    dataGridView1.Rows.Add();

                    dataGridView1.Rows[RowIndex].Cells[0].Value = reader.GetString(2);

                    dataGridView1.Rows[RowIndex].Cells[1].Value = reader.GetString(3);





                    RowIndex++;



                }

                reader.Close();



            }

        }






share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 23 '18 at 15:09

























answered Nov 23 '18 at 4:11









Dhanushka Dayawansha

32619




32619












  • am getting this error "System.InvalidOperationException: 'No row can be added to a DataGridView control that does not have columns. Columns must be added first.'" after i scan a product
    – saleh abbas
    Nov 23 '18 at 12:39










  • try updated answer
    – Dhanushka Dayawansha
    Nov 23 '18 at 15:10


















  • am getting this error "System.InvalidOperationException: 'No row can be added to a DataGridView control that does not have columns. Columns must be added first.'" after i scan a product
    – saleh abbas
    Nov 23 '18 at 12:39










  • try updated answer
    – Dhanushka Dayawansha
    Nov 23 '18 at 15:10
















am getting this error "System.InvalidOperationException: 'No row can be added to a DataGridView control that does not have columns. Columns must be added first.'" after i scan a product
– saleh abbas
Nov 23 '18 at 12:39




am getting this error "System.InvalidOperationException: 'No row can be added to a DataGridView control that does not have columns. Columns must be added first.'" after i scan a product
– saleh abbas
Nov 23 '18 at 12:39












try updated answer
– Dhanushka Dayawansha
Nov 23 '18 at 15:10




try updated answer
– Dhanushka Dayawansha
Nov 23 '18 at 15:10


















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