C# 选择DataSQL到DataGridView

我尝试从表中绑定DataGridView

private void BindGrid()
    {
        DataGridViewNatureCharge.DataSource = null;
        using (SqlConnection con = new SqlConnection(connstring))
        {
            using (SqlCommand cmd = new SqlCommand("select * from NatureCharge", con))
            {
                cmd.CommandType = CommandType.Text;
                using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
                {
                    using (DataTable dt = new DataTable())
                    {
                        sda.Fill(dt);
                        DataGridViewNatureCharge.DataSource = dt;
                    }
                }
            }
        }
    }

但是我需要显示Nom Famille而不是Id，那么对select查询的修改是什么呢？？？ 从NatureCharge中选择*，其中Idfam=从Famile中选择NomFam

更新 在DatagridView的另一个单元格中创建的NomFam存在问题。 我需要把它添加到第三个单元格中。 从NatureCharge中选择n.IdNat、n.NomNat、f.NomFam n.IdFam=f.IdFam

DataGridView

//Set Columns Count
        DataGridViewNatureCharge.ColumnCount = 3;

        //Hide the last blank line
        DataGridViewNatureCharge.AllowUserToAddRows = false;

        //Add Columns
        DataGridViewNatureCharge.Columns[0].Name = "IdNat";
        DataGridViewNatureCharge.Columns[0].HeaderText = "N° Nature de Charge";
        DataGridViewNatureCharge.Columns[0].DataPropertyName = "IdNat";
        DataGridViewNatureCharge.Columns[0].Width = 100;

        DataGridViewNatureCharge.Columns[1].HeaderText = "Nom de Nature de Charge";
        DataGridViewNatureCharge.Columns[1].Name = "NomNat";
        DataGridViewNatureCharge.Columns[1].DataPropertyName = "NomNat";
        DataGridViewNatureCharge.Columns[1].Width = 150;

        DataGridViewNatureCharge.Columns[2].Name = "IdFam";
        DataGridViewNatureCharge.Columns[2].HeaderText = "Nom de Famille";
        DataGridViewNatureCharge.Columns[2].DataPropertyName = "IdFam";
        DataGridViewNatureCharge.Columns[2].Width = 100;

        DataGridViewCheckBoxColumn checkBoxColumn = new DataGridViewCheckBoxColumn();
        checkBoxColumn.HeaderText = "";
        checkBoxColumn.Width = 30;
        checkBoxColumn.Name = "checkBoxColumn";
        DataGridViewNatureCharge.Columns.Insert(0, checkBoxColumn);

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为此使用SQL联接

SELECT A.NomFam, B.IdNat, B.NomNat FROM Famille A join NatureChange B on A.IdFam = B.IdFam

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在querynothing中更改select顺序没有发生任何情况，结果相同，请参见upadet后的查询，我已经在表单中用名称和标题初始化datagridview我不确定您在问什么。但我想这就是问题所在：DataGridViewNatureCharge.Columns[2].DataPropertyName=IdFam；将其更改为DataGridViewNatureCharge.Columns[2]。DataPropertyName=NomFam。