c# - 行的 DataGridView 标记值为空

Question

我在一个表单上有 2 个 DataGridView 控件。两者都具有相同数量和类型的列。1 个文本框列和 2 个复选框列。问题是第一个 DataGridView 工作正常，但另一个不是。两者都有相同的绑定方法和数据源。同一表单上的第二个 DataGridView 的问题是..

• 未设置复选框值

• 当我尝试检索值时 currentrow.Tag 值为 null

下面是我用来绑定 DataGridViews 和设置复选框值的代码

public void BindGridView(DataGridView gv)
    {
        var actuallist = UserOperations.GetPermissions(RoleId, (int)(Enumerations.ModuleType.Basic));
        Common.Common.StyleGridView(gv);
        gv.AutoGenerateColumns = false;

        gv.Columns["ModuleName"].DataPropertyName = "ModuleName";

        gv.DataSource = actuallist;

        int j = 0;
        foreach (DataGridViewRow row in gv.Rows)
        {
            row.Tag = actuallist[j++].ModuleId;
        }
        int k = 0;
        bool r = false;
        foreach (DataGridViewRow row in gv.Rows)
        {
            r = actuallist[k++].PermissionGranted;
            if (r)
                ((DataGridViewCheckBoxCell)row.Cells[1]).Value = r;
            else
                ((DataGridViewCheckBoxCell)row.Cells[2]).Value = !r;
        }
    }

 private void gvPermissions_CellClick(object sender, DataGridViewCellEventArgs e)
    {
        if (gvPermissions.Columns[e.ColumnIndex].Name == "Granted")
        {
            bool isChecked = (bool)gvPermissions[e.ColumnIndex, e.RowIndex].EditedFormattedValue;
            gvPermissions.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = !isChecked;
            gvPermissions.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Value = isChecked;
            gvPermissions.EndEdit();
        }

        if (gvPermissions.Columns[e.ColumnIndex].Name == "Denied")
        {
            bool isChecked = (bool)gvPermissions[e.ColumnIndex, e.RowIndex].EditedFormattedValue;
            gvPermissions.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = !isChecked;
            gvPermissions.Rows[e.RowIndex].Cells[e.ColumnIndex - 1].Value = isChecked;
            gvPermissions.EndEdit();
        }
    }