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

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

edited Nov 23 at 2:38

asked Nov 23 at 2:32

saleh abbas

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

add a comment |

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

edited Nov 23 at 2:38

asked Nov 23 at 2:32

saleh abbas

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

add a comment |

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

edited Nov 23 at 2:38

asked Nov 23 at 2:32

saleh abbas

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

edited Nov 23 at 2:38

asked Nov 23 at 2:32

saleh abbas

edited Nov 23 at 2:38

asked Nov 23 at 2:32

saleh abbas

edited Nov 23 at 2:38

asked Nov 23 at 2:32

saleh abbas

asked Nov 23 at 2:32

saleh abbas

asked Nov 23 at 2:32

saleh abbas

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

add a comment |

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

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

add a comment |

1 Answer
1

active

oldest

votes

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();



            }

        }

edited Nov 23 at 15:09

answered Nov 23 at 4:11

Dhanushka Dayawansha

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 at 12:39

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

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

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();



            }

        }

edited Nov 23 at 15:09

answered Nov 23 at 4:11

Dhanushka Dayawansha

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 at 12:39

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

add a comment |

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();



            }

        }

edited Nov 23 at 15:09

answered Nov 23 at 4:11

Dhanushka Dayawansha

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 at 12:39

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

add a comment |

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();



            }

        }

edited Nov 23 at 15:09

answered Nov 23 at 4:11

Dhanushka Dayawansha

32619

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();



            }

        }

edited Nov 23 at 15:09

answered Nov 23 at 4:11

Dhanushka Dayawansha

32619

edited Nov 23 at 15:09

answered Nov 23 at 4:11

Dhanushka Dayawansha

32619

answered Nov 23 at 4:11

Dhanushka Dayawansha

32619

answered Nov 23 at 4:11

Dhanushka Dayawansha

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 at 12:39

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

add a comment |

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 at 12:39

try updated answer
– Dhanushka Dayawansha
Nov 23 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 at 12:39

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

add a comment |

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