How can i ask grid view to know which cell is active and pass cell's value to my function?

Is cellvaluechanged event suitable for this ? how?

void filterDataGridView(DataGridView dgv, string columnName, string filterValue)
    {
        foreach (DataGridViewRow row 开发者_如何学编程in dgv.Rows)
        {
            if (row.Cells[columnName].Value.ToString().Contains(filterValue))
            {
                row.Visible = true;
            }
            else row.Visible = false;
        }
    }

i need too send cell value that user write it,to filtervalue of my function.how can i do that?

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If you want to react on the user typing text in on of your cells I would recommend CellValidating event.

• You write some text in on of your cells
• Cell_validating occurs
• you call your filter method and you may modify some other dataGrid (in your example hide/show rows on given value)

HTH