选择asp.net C＃verify gridview记录

Question

我有以下代码，但是如何在执行代码之前首先验证是否确实从gridview1中选择了一条记录（没有多条记录）？

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
    vSelectedRow = GridView1.SelectedIndex;
    vWORKORDER_TYPE = GridView1.SelectedRow.Cells[1].Text;
    //vTYPE = GridView1.SelectedRow.Cells[1].Text;
    vWORKORDER_BASE_ID = GridView1.SelectedRow.Cells[2].Text;
    vWORKORDER_LOT_ID = GridView1.SelectedRow.Cells[3].Text;
    vWORKORDER_SPLIT_ID = GridView1.SelectedRow.Cells[4].Text;
    vWORKORDER_SUB_ID = GridView1.SelectedRow.Cells[5].Text;
    vOPERATION_SEQ_NO = Convert.ToInt32(GridView1.SelectedRow.Cells[6].Text);
    vRESOURCE_ID = GridView1.SelectedRow.Cells[7].Text;
    vHOURLY_COST = Convert.ToDecimal(GridView1.SelectedRow.Cells[9].Text);
    vUNIT_COST = Convert.ToDecimal(GridView1.SelectedRow.Cells[10].Text);
    vBURDEN_PER_HR = Convert.ToDecimal(GridView1.SelectedRow.Cells[11].Text);
    vBURDEN_PER_UNIT = Convert.ToDecimal(GridView1.SelectedRow.Cells[12].Text);
    vBURDEN_PERCENT = Convert.ToDecimal(GridView1.SelectedRow.Cells[13].Text);
    vBUR_PER_OPERATION = Convert.ToDecimal(GridView1.SelectedRow.Cells[14].Text);
 }

Answer 1

您可以测试实际具有所选行的网格。

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
    if (GridView1.SelectedRow == null) return;

    vSelectedRow = GridView1.SelectedIndex;
    vWORKORDER_TYPE = GridView1.SelectedRow.Cells[1].Text;
    //vTYPE = GridView1.SelectedRow.Cells[1].Text;
    vWORKORDER_BASE_ID = GridView1.SelectedRow.Cells[2].Text;
    vWORKORDER_LOT_ID = GridView1.SelectedRow.Cells[3].Text;
    vWORKORDER_SPLIT_ID = GridView1.SelectedRow.Cells[4].Text;
    vWORKORDER_SUB_ID = GridView1.SelectedRow.Cells[5].Text;
    vOPERATION_SEQ_NO = Convert.ToInt32(GridView1.SelectedRow.Cells[6].Text);
    vRESOURCE_ID = GridView1.SelectedRow.Cells[7].Text;
    vHOURLY_COST = Convert.ToDecimal(GridView1.SelectedRow.Cells[9].Text);
    vUNIT_COST = Convert.ToDecimal(GridView1.SelectedRow.Cells[10].Text);
    vBURDEN_PER_HR = Convert.ToDecimal(GridView1.SelectedRow.Cells[11].Text);
    vBURDEN_PER_UNIT = Convert.ToDecimal(GridView1.SelectedRow.Cells[12].Text);
    vBURDEN_PERCENT = Convert.ToDecimal(GridView1.SelectedRow.Cells[13].Text);
    vBUR_PER_OPERATION = Convert.ToDecimal(GridView1.SelectedRow.Cells[14].Text);

}