当用combox数据绑定到一个dataset时就触发了SelectedIndexChanged事件,请教如何在数据绑定时不让combox控件触发SelectedIndexChanged事件,
本来想设个Flag变量,判断是不是第一次登录,那样也可以,不过我不喜欢,后来看到网上有说用“事件”解决。
做个试验,真好使
代码如下:
1 //解除事件
2 this.cboVendor.SelectedIndexChanged -= new System.EventHandler(this.cboVendor_SelectedIndexChanged);
3 cboVendor.DataSource = myClass.RunQueryCmd(strSqlCmd);
4 cboVendor.DisplayMember = "SupplierCode";
5 //添加事件
6 this.cboVendor.SelectedIndexChanged += new System.EventHandler(this.cboVendor_SelectedIndexChanged);
2 this.cboVendor.SelectedIndexChanged -= new System.EventHandler(this.cboVendor_SelectedIndexChanged);
3 cboVendor.DataSource = myClass.RunQueryCmd(strSqlCmd);
4 cboVendor.DisplayMember = "SupplierCode";
5 //添加事件
6 this.cboVendor.SelectedIndexChanged += new System.EventHandler(this.cboVendor_SelectedIndexChanged);