Data Grid view

Question

can anyone help how to select the multiple cells in datagridview through code, now i am setting selected property as true for each cell before

load the control. if once the control loaded it shows only one cell as selected cell.

Vasanth · Answer

Please add cell panting event  but its only one selected cell border color  private void dataGridView1_CellPainting( object sender DataGridViewCellPaintingEventArgs e) { if (e.ColumnIndex == this .dataGridView1.CurrentCell.ColumnIndex && e.RowIndex == this .dataGridView1.CurrentCell.RowIndex) { e.Paint(e.CellBounds DataGridViewPaintParts .All & ~ DataGridViewPaintParts .Border); using ( Pen p = new Pen ( Color .Black 4)) { Rectangle rect = e.CellBounds; rect.Width -= 2; rect.Height -= 2; e.Graphics.DrawRectangle(p rect); } e.Handled = true ; } } Try other option as below  here we using selectionchanged event and highligted bold for selected cell. private void dataGridView1_SelectionChanged( object sender EventArgs e) { foreach ( DataGridViewRow row in this .dataGridView1.Rows) { foreach ( DataGridViewCell c in row.Cells) { c.Style = this .dataGridView1.DefaultCellStyle; } } DataGridViewCellStyle style = new DataGridViewCellStyle (); style.BackColor = Color .Red; style.Font = new Font ( Courier New  14.4f FontStyle .Bold); foreach ( DataGridViewCell cell in this .dataGridView1.SelectedCells) { cell.Style = style; } } Please mark as answer  if its helps you.

kombsh m · Answer

hi amit i need the help from your side without bounding the data source my target is draw the border for selected cells like the below example.

kombsh m · Answer

hi vasanth  In this way i can draw border for only one selected cell but here i need to draw border for all the selected cells.like the below image

Amit Choudhary · Answer

hi friend the setting of selected cell's is only effective after the datasource is bound to the control so you have to have write add event handler for gridData_DataBindingComplete() event Here is the code: private string Selection_ColumnName = null ; private List Selection_CellValues = null ; public void SetSelectedValues( string ColumnName List CellValues) { Selection_ColumnName = ColumnName; Selection_CellValues = CellValues; gridData.DataBindingComplete += new DataGridViewBindingCompleteEventHandler(gridData_DataBindingComplete); } private void gridData_DataBindingComplete( object sender DataGridViewBindingCompleteEventArgs e) { bool CellFound = false ; for ( int ColumnIndex = 0 ; ColumnIndex { if (gridData.Columns[ 0 ].Name == Selection_ColumnName) { gridData.ClearSelection(); for ( int RowIndex = 0 ; RowIndex { foreach ( object CellValue in Selection_CellValues) { try { if (gridData.Rows[RowIndex].Cells[ColumnIndex].Value.ToString() == CellValue.ToString()) { gridData.Rows[RowIndex].Cells[ColumnIndex].Selected = true ; if (!CellFound) gridData.CurrentCell = gridData.SelectedCells[ 0 ]; CellFound = true ; } } catch { } } } break ; } } gridData.DataBindingComplete -= new DataGridViewBindingCompleteEventHandler(gridData_DataBindingComplete); } Please mark as answer if it helps.

kombsh m · Answer

thank u vasanth i got in this way .i need one more help from your side. i would like to give the border line for the selected cells instead of give SelectionBackColor can u help me?

Vasanth · Answer

Initially just create one datagridview control and add the below code and you will find out your solution. [C# Code] private void Form1_Load( object sender EventArgs e) { //Create temp datatable for bind values DataTable dtTemp = new DataTable (); DataRow dr; //create schema dtTemp.Columns.Add( Name ); dtTemp.Columns.Add( City ); dtTemp.Columns.Add( State ); //Add temp datas dr = dtTemp.NewRow(); dr[ Name ] = AAA ; dr[ City ] = CAAA ; dr[ State ] = SAAA ; dtTemp.Rows.Add(dr); dr = dtTemp.NewRow(); dr[ Name ] = BBB ; dr[ City ] = CBBB ; dr[ State ] = SBBB ; dtTemp.Rows.Add(dr); dr = dtTemp.NewRow(); dr[ Name ] = CCC ; dr[ City ] = CCCC ; dr[ State ] = SCCC ; dtTemp.Rows.Add(dr); dr = dtTemp.NewRow(); dr[ Name ] = DDD ; dr[ City ] = CDDD ; dr[ State ] = SDDD ; dtTemp.Rows.Add(dr); dr = dtTemp.NewRow(); dr[ Name ] = EEE ; dr[ City ] = CEEE ; dr[ State ] = SEEE ; dtTemp.Rows.Add(dr); //Bind the datasourse dataGridView1.DataSource = dtTemp; //Alter the propertise dataGridView1.SelectionMode = DataGridViewSelectionMode .CellSelect; dataGridView1.MultiSelect = true ; //If u want to dynamically select the cells  just update the below code dataGridView1[11].Selected = true ; dataGridView1[2 1].Selected = true ; dataGridView1[0 2].Selected = true ; dataGridView1[1 2].Selected = true ; } If it helps you  please mark as answer.