组合框通过两个数据表值绑定 [英] combo box bind through two data table value

问题描述

你好
我有两个数据表(dt,dt1)，其中选择了不同的值.
在dt="gov_center_Name"和dt1="pri_center_Name"中选择了这两个值.

现在，我合并此数据表并将值绑定到组合框.
但两者的价值都没有.

解决方案

这是绑定数据表的方式吗?

 cmb.DisplayMember = " ;
cmb.ValueMember = " ;
cmb.DataSource = dt; 

 dt.Merge(dt1);
           dt.Columns.Add(" ， typeof (字符串))；
            foreach (DataRow dr  in  dt.Rows中)
           {
               dr [" ] = dr ["  gov_center_Name"].ToString();
           }
            foreach (DataRow dr  in  dt.Rows中)
           {
               如果(dr [" " )
                   dr [" ] = dr ["  pri_center_Name"].ToString();
           }
           comboBox1.DataSource = dt;
           comboBox1.DisplayMember = " ; 

hello
i have two datatable (dt,dt1) in which to different value is selected.
in dt="gov_center_Name" and dt1="pri_center_Name" these two value are selected.

now i merge this datatable and bind a value into combobox.
but both value are not coming.
can you suggest me how to do.

解决方案

Is this the way you bind the datatable?

cmb.DisplayMember = "Colname1";
cmb.ValueMember = "Colname2";            
cmb.DataSource = dt;

dt.Merge(dt1);
           dt.Columns.Add("Center", typeof(string));
           foreach (DataRow dr in dt.Rows)
           {
               dr["Center"] = dr["gov_center_Name"].ToString();
           }
           foreach (DataRow dr in dt.Rows)
           {
               if (dr["Center"] == "")
                   dr["Center"] = dr["pri_center_Name"].ToString();
           }
           comboBox1.DataSource = dt;
           comboBox1.DisplayMember = "Center";

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