如何将Datatable值插入到多个表中

本文介绍了如何将Datatable值插入到多个表中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

大家好我想在2个表中插入一个ID 我的代码如下

Hi All i want to insert one ID in to 2 table my code are as below

DataTable dt = new DataTable(); dt = FnTableIDInsert(); SqlConnection connn = new SqlConnection(ConnectionString); connn.Open(); string sqlselect = "INSERT INTO tbl_clientcolumnnames(tableid) values('tableid')"; SqlCommand cmdselect = new SqlCommand(sqlselect, connn); cmdselect.ExecuteNonQuery(); string sqlselect2 = "INSERT INTO tbl_Intellectcolumnnames(tableid) values('tableid')"; SqlCommand cmdselect2 = new SqlCommand(sqlselect2, connn); cmdselect2.ExecuteNonQuery();

请帮助我改变我的代码，将数据插入多个表格 编辑（从回答中移出）

pls help me wt change i do in my code for insert data into multiple tables EDIT (Moved from answer)

DataTable dt = new DataTable(); dt = FnTableIDInsert(); foreach (DataRow dr in dt.Rows) { string value = dr["tableid"].ToString(); SqlConnection connn = new SqlConnection(ConnectionString); connn.Open(); string sqlselect = "INSERT INTO tbl_clientcolumnnames(tableid) values("+value+")"; SqlCommand cmdselect = new SqlCommand(sqlselect, connn); cmdselect.ExecuteNonQuery(); string sqlselect2 = "INSERT INTO tbl_Intellectcolumnnames(tableid) values(" + value + ")"; SqlCommand cmdselect2 = new SqlCommand(sqlselect2, connn); cmdselect2.ExecuteNonQuery(); }

i已经对代码进行了更改，知道每件事都很好，但是bata的格式如下： />

i Have done change in code know every thing is okey but bata come like below format

columnintellectid tableid ScriptId ColumnnameInt 8 NULL 8 Name 9 5 NULL NULL 10 NULL 9 Name 11 6 NULL NULL

但是我想要

But i want

columnintellectid tableid ScriptId ColumnnameInt 8 5 8 Name 9 6 9 Name

请回复如果有人知道

pls reply if some know

推荐答案

谢谢大家的支持，很快就看到你的问题已经解决了，我已经解决了上面提到的解决方案 Thank you all for supproty see you soon my problem was solved it from myself already solution mentioned above

如果你想避免空值，请尝试如下 try like below if you want to avoid null values DataTable dt = new DataTable(); dt = FnTableIDInsert(); foreach (DataRow dr in dt.Rows) { string value = dr["tableid"].ToString(); if(value!=null && value!=string.Empty ) { SqlConnection connn = new SqlConnection(ConnectionString); connn.Open(); string sqlselect = "INSERT INTO tbl_clientcolumnnames(tableid) values("+value+")"; SqlCommand cmdselect = new SqlCommand(sqlselect, connn); cmdselect.ExecuteNonQuery(); string sqlselect2 = "INSERT INTO tbl_Intellectcolumnnames(tableid) values(" + value + ")"; SqlCommand cmdselect2 = new SqlCommand(sqlselect2, connn); cmdselect2.ExecuteNonQuery(); } }