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-Form1 form click on the combobox drop-down list box and then pop up a form2 form, form2 form, there is a dataGridView1, then double-click a line of dataGridView1 data, will select the data transmission line to the form1, and automatically form1 fill the combobox and textbox. form2 form the main event