combox 在属性设置中,DataSource为(数据集)njb1.chushai,DisplayMember 和ValueMember都设置为"nj",表chushai中的一个字段.在 InitializeComponent()中自动生成的代码为:
this.njcombox.DataSource = this.njb1;
this.njcombox.DisplayMember = "chushai.nj";
this.njcombox.ItemHeight = 12;
this.njcombox.Location = new System.Drawing.Point(88, 16);
this.njcombox.MaxDropDownItems = 10;
this.njcombox.Name = "njcombox";
this.njcombox.Size = new System.Drawing.Size(121, 20);
this.njcombox.TabIndex = 13;
this.njcombox.ValueMember = "chushai.nj";
可一运行就是不行,单击下拉的小三角,空空的,什么也没有,我搜索了好多帖子,用它们的方法,也不行,请帮帮忙吧,多谢了!
this.njcombox.DataSource = this.njb1;
this.njcombox.DisplayMember = "chushai.nj";
this.njcombox.ItemHeight = 12;
this.njcombox.Location = new System.Drawing.Point(88, 16);
this.njcombox.MaxDropDownItems = 10;
this.njcombox.Name = "njcombox";
this.njcombox.Size = new System.Drawing.Size(121, 20);
this.njcombox.TabIndex = 13;
this.njcombox.ValueMember = "chushai.nj";
可一运行就是不行,单击下拉的小三角,空空的,什么也没有,我搜索了好多帖子,用它们的方法,也不行,请帮帮忙吧,多谢了!
sqldatapter da=new sqldatapter("查询数据库语句",myconnectonstr);
da.fill(dt,"word");
this.njcombox.DataSource = dt.tables["word"].defaultview;
this.njcombox.DisplayMember ="需要查询的数据表中的字段名";
this.njcombox.ValueMember ="需要查询的数据表中的字段名";
comboBox1.DataSource = aaa.Tables["ydy"];
comboBox1.DisplayMember = "hm";
可还是不行啊
http://www.syncfusion.com/FAQ/WindowsForms/FAQ_c43c.aspx#q561q