winform窗体下拉框绑定数据 显示数字而不是文本怎么回事？

[孤舟不想上岸]

求解

绑定 代码如下：

Line l = new Line();
cboline.DataSource = l.getAllLine().Tables[0];
cboline.DisplayMember = "line";
cboline.ValueMember = "id";

[huiyaosoft]

以下代码摘自《31天学会CRM项目开发(C#编程入门及项目实战)》

            this.cbHangye.DropDownStyle = ComboBoxStyle.DropDownList;
            // 必须指定下拉框的DisplayMember与ValueMember属性
            this.cbHangye.DisplayMember = "Name";
            this.cbHangye.ValueMember = "Value";
            ComBoxItem item = new ComBoxItem();
            item.Name = "设备制造";
            item.Value = "1";
            this.cbHangye.Items.Add(item);
            item = new ComBoxItem();
            item.Name = "电子商务";
            item.Value = "2";
            this.cbHangye.Items.Add(item);
            item = new ComBoxItem();
            item.Name = "白色家电";
            item.Value = "3";
            this.cbHangye.Items.Add(item);
            item = new ComBoxItem();
            item.Name = "食品卫生";
            item.Value = "4";
            this.cbHangye.Items.Add(item);
            item = new ComBoxItem();
            item.Name = "金融";
            item.Value = "5";
            this.cbHangye.Items.Add(item);

[巴士上的邂逅]

line列都是什么值？

[秋的红果实]

把代码贴全，或者以一个模型来说明问题

[岁月落寞忆流年]

cboline.DisplayMember = "显示列"; cboline.ValueMember = "实际值";

[threenewbee]

cboline.DisplayMember = "line"; -> cboline.DisplayMember = "name";

[又被套路了]

应当是类型不匹配，winform下拉框绑定代码值你设置为了string类型，但是你给下拉框传入的value值是int类型