如何手动将数据添加到 dataGridView? [英] How can I manually add data to a dataGridView?

问题描述

我正在尝试运行此代码，但出现异常:

I'm trying to run this code, and I get an exception:

索引超出范围.必须是非负且小于集合.参数名称:index

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

private void LoadStudentGrades(int gradeParaleloId, int subjectId)
{
    GradeStudentRepository gradeStudentRepo = new GradeStudentRepository();
    students = gradeStudentRepo.FindAllGradeStudents().Where(g => g.GradeParaleloId == gradeParaleloId)
                .Select(g => g.Student);

    int i = 1;
    foreach (var student in students)
    {
        DataGridViewRow row = new DataGridViewRow();

        row.Cells[0].Value = i.ToString();
        row.Cells[1].Value = student.LastNameFather + " " + student.LastNameMother + ", " + student.Name;

        dataGridView1.Rows.Add(row);
        i++;
    }
}

我在 datagridview 中手动创建了列，现在我想使用这个小方法填充字段.

I manually created the columns in the datagridview, and now I would like to populate the fields using this small method.

推荐答案

新创建的行中有 0 个单元格，这就是您收到该异常的原因.你不能使用像

There are 0 cells in the newly created row, that's why you are getting that exception. You cannot use statements like

row.Cells[0].Value = i.ToString();

除非您手动将单元格添加到空白行.

unless you manually add cells to the blank row.

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