c# - 获取 GridView 中每一行的 dataKey 值

Question

我在尝试从 GridView 中获取数据键值时遇到了一些问题。这是代码:

GridView gvForCheckBox = (GridView)e.Item.FindControl("gvProduct") as GridView;
foreach (GridViewRow gr in gvForCheckBox.Rows)
{
    //If product name of items in prodList and SPUItemList matches
    if (available.Where(x => x.id == gr.Cells[0].Text).Any())
    {
        //Mark the checkBox checked
        CheckBox cb = (CheckBox)gr.Cells[0].FindControl("cbCheckRow");
        cb.Checked = true;

        //Get the product packaging quantity by productName
        string name = gr.Cells[1].Text;
        int productQuantity = packBLL.getProductQuantityByName(name);
        TextBox tb = (TextBox)gr.Cells[3].FindControl("tbQuantity");
        tb.Text = productQuantity.ToString();
    }
}

在 if (available.Where(x => x.id == gr.Cells[0].Text).Any()) 处，它应该与第 0 列的值进行比较逐行，如果 id 匹配，则复选框将被标记。但是，我没有在 GridView 中显示 id 列，而是将其设置为 DataKey 值。所以我想知道如何获取 GridView 中每一行的数据键。

提前致谢。

Answer 1

假设 x.id 是一个字符串，您可以在 中使用 gvForCheckBox.DataKeys[gr.RowIndex].Value.ToString() 获取 DataKey 值>foreach 循环:

foreach (GridViewRow gr in gvForCheckBox.Rows)
{
    //If product name of items in prodList and SPUItemList matches
    if (available.Where(x => x.id == gvForCheckBox.DataKeys[gr.RowIndex].Value.ToString()).Any())
    {
        //Mark the checkBox checked
        CheckBox cb = (CheckBox)gr.Cells[0].FindControl("cbCheckRow");
        cb.Checked = true;

        //Get the product packaging quantity by productName
        string name = gr.Cells[1].Text;
        int productQuantity = packBLL.getProductQuantityByName(name);
        TextBox tb = (TextBox)gr.Cells[3].FindControl("tbQuantity");
        tb.Text = productQuantity.ToString();
    }
}