一个数据源赋给多个COMBOX控件绑定,改变一个COMBOX值时其它几个也跟着改变(已有解决方案)

原文地址：http://www.cnblogs.com/gfsoft/archive/2007/01/17/622915.html

 

一个数据源赋给多个COMBOX控件绑定,改变一个COMBOX值时其它几个也跟着改变(已有解决方案)

     问题:

     下面代码实现一个数据表中所有列的信息绑定在KEYCOLUMN,VALUESCOLUMN,DESCCOLUMN三个COMBOX控件上,方便定义一个数据字典的表让其选择KEYCOLUMN,VALUESCOLUMN,DESCCOLUMN三个列分别对应数据表的那个列

  绑定后发现只要改变一个COMBOX值时其它几个也跟着改变

                   this.CO_KEYCOLUMN.DataSource = this._persistCustomDataTable.Columns;

                    this.CO_KEYCOLUMN.DisplayMember = "Name";

                    this.CO_KEYCOLUMN.ValueMember = "ID";

                    this.CB_VALUESCOLUMN.DataSource =this._persistCustomDataTable.Columns;

                    this.CB_VALUESCOLUMN.DisplayMember = "Name";

                    this.CB_VALUESCOLUMN.ValueMember = "ID";

                    this.CB_DESCCOLUMN.DataSource =this._persistCustomDataTable.Columns;

                    this.CB_DESCCOLUMN.DisplayMember = "Name";

                    this.CB_DESCCOLUMN.ValueMember = "ID";

注:this._persistCustomDataTable.Columns为数据表列的集合

解决后的程序  

1.重新定义注:this._persistCustomDataTable.Columns为数据表列的集合分别为每个COMBOX绑定独立的数据源

                    List<UDCP.Core.DataColumn> comboxDataColumn1 = new  List<UDCP.Core.DataColumn>();

                    List<UDCP.Core.DataColumn> comboxDataColumn2 = new List<UDCP.Core.DataColumn>();

                    List<UDCP.Core.DataColumn> comboxDataColumn3 = new List<UDCP.Core.DataColumn>();

                    comboxDataColumn1.InsertRange(0,this._persistCustomDataTable.Columns);

                    comboxDataColumn2.InsertRange(0, this._persistCustomDataTable.Columns);

                    comboxDataColumn3.InsertRange(0, this._persistCustomDataTable.Columns);

                    //值列，显示列，描述列

                    this.CO_KEYCOLUMN.DataSource = comboxDataColumn1;//this._persistCustomDataTable.Columns;

                    this.CO_KEYCOLUMN.DisplayMember = "Name";

                    this.CO_KEYCOLUMN.ValueMember = "ID";

                    this.CB_VALUESCOLUMN.DataSource = comboxDataColumn2;//this._persistCustomDataTable.Columns;

                    this.CB_VALUESCOLUMN.DisplayMember = "Name";

                    this.CB_VALUESCOLUMN.ValueMember = "ID";

                    this.CB_DESCCOLUMN.DataSource =comboxDataColumn3; //this._persistCustomDataTable.Columns;

                    this.CB_DESCCOLUMN.DisplayMember = "Name";

                    this.CB_DESCCOLUMN.ValueMember = "ID";