双击dataGridView后的数据传递示例

 该示例实现的功能为:
点击form1窗体上的comboBox下拉列表框然后弹出一个form2窗体,form2窗体上有一个dataGridView1,然后双击dataGridView1的某一行数据,会把选中的该行数据传递到form1,并自动填充form1中的comboBox和textbox.

form2窗体中的主要事件代码为:

//填充dataGridView1
public void datalist()
        {

            string mysql = "select papertypes as 用纸类型,len as 长,wid as 宽,ke as 克重,xishu as 系数,dprice as 吨价,lprice as 令价 from system_paperprice";
            DataSet grid = new DataSet();
            string connectionString = ConfigurationManager.ConnectionStrings["进销存管理系统.Properties.Settings.ld_ysglConnectionString"].ConnectionString;
            SqlConnection myConnection = new SqlConnection(connectionString);
            myConnection.Open();

            grid.Clear();

            SqlDataAdapter myda = new SqlDataAdapter(mysql, myConnection);
            myda.Fill(grid);
            dataGridView1.DataSource = grid.Tables[0];
            myConnection.Close();

        }


        //双击选择用纸类型信息并回送到调用的窗体-------------
        private void dataGridView1_DoubleClick(object sender, System.EventArgs e)
        {
            if (this.dataGridView1.ReadOnly == true) 
            {
                    int intCurrentRowNumber = this.dataGridView1.CurrentCell.RowIndex;
                    string sendStokername, sendStokerdprice, sendStokerke, sendStokerxishu, sendStokerlprice;
                    sendStokername = this.dataGridView1.Rows[intCurrentRowNumber].Cells[0].Value.ToString().Trim();
                    sendStokerdprice = this.dataGridView1.Rows[intCurrentRowNumber].Cells[5].Value.ToString().Trim();
                    sendStokerke = this.dataGridView1.Rows[intCurrentRowNumber].Cells[3].Value.ToString().Trim();
                    sendStokerxishu = this.dataGridView1.Rows[intCurrentRowNumber].Cells[4].Value.ToString().Trim();
                    sendStokerlprice = this.dataGridView1.Rows[intCurrentRowNumber].Cells[6].Value.ToString().Trim();

                    string[] sendArray = new string[] { sendStokername, sendStokerdprice, sendStokerke, sendStokerxishu, sendStokerlprice };
                    calc.inputTextDataArray[0] = sendArray[0];
                    calc.inputTextDataArray[1] = sendArray[1];
                    calc.inputTextDataArray[2] = sendArray[2];
                    calc.inputTextDataArray[3] = sendArray[3];
                    calc.inputTextDataArray[4] = sendArray[4];
                    this.Close();
            }
        }

        public void setDataGridReadOnly()
        {
            this.dataGridView1.ReadOnly = true;
        }

form1窗体中的主要事件代码为:

public static string[] inputTextDataArray = new string[] { "", "", "", "", "" };
        private LinkDataBase link = new LinkDataBase();
        public calc()
        {
                            
            InitializeComponent();
            this.comboBox2.Items.Add("");
        }

//-------将双击选择得到的用纸类型信息显示到窗体中--------
        private void setTextData()
        {
            this.comboBox2.IntegralHeight = false;//使组合框不调整大小以显示其所有项
            this.comboBox2.DroppedDown = false;//使组合框不显示其下拉部分
            this.comboBox2.Items[0] = inputTextDataArray[0];
            this.comboBox2.SelectedIndex = 0;

            this.textBox20.Text = inputTextDataArray[1];
            this.textBox18.Text = inputTextDataArray[2];
            this.textBox10.Text = inputTextDataArray[3];
            this.textBox2.Text = inputTextDataArray[4];
            this.comboBox2.IntegralHeight = true;//恢复默认值
        }

        //----------创建窗体，供用户选择用纸类型----------
        private void cmb_Stoker_DropDown(object sender, System.EventArgs e)
        {
            make newFrm = new make();
            newFrm.setDataGridReadOnly();
            newFrm.ShowDialog();
            setTextData();
            SendKeys.Send("{Tab}");//向活动应用程序发送Tab键,跳到下一控件
        }

        //--------将所选用纸信息的相关数据读入窗体---------
        private void cmb_StokerID_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
        {
            this.textBox20.Text = "";
            this.textBox18.Text = "";
            this.textBox10.Text = "";
            this.textBox2.Text = "";
            string strSearchWord = this.comboBox2.Text;
            string sendSQL = "select papertypes,dprice,ke,xishu,lprice from system_paperprice where papertypes = '" + strSearchWord + "'";
            DataTable tempDataTable = this.link.SelectDataBase(sendSQL);
            if (tempDataTable.Rows.Count > 0)
            {
                inputTextDataArray[0] = tempDataTable.Rows[0][0].ToString().Trim();
                inputTextDataArray[1] = tempDataTable.Rows[0][1].ToString().Trim();
                inputTextDataArray[2] = tempDataTable.Rows[0][2].ToString().Trim();
                inputTextDataArray[3] = tempDataTable.Rows[0][3].ToString().Trim();
                inputTextDataArray[4] = tempDataTable.Rows[0][4].ToString().Trim();
                this.setTextData();
                SendKeys.Send("{Tab}");//向活动应用程序发送Tab键,跳到下一控件
            }
        }