取值问题

[md198687]

for (int i = 0; i < this.cblNo.Items.Count; i++)
{
string noNames = "";
if (this.cblNo.Items[i].Selected)
{
string noid = this.cblNo.Items[i].Value; //得到多选框选中的id
Response.Write(noid);//输出结果是123456
}

}
怎样把123456变成1，2，3，4...

[tkscascor]

char[] arrylist=noid.ToCharArray()

[liherun]

for (int i = 0; i < this.cblNo.Items.Count; i++) 
{ 
  string noNames = ""; 
  if (this.cblNo.Items[i].Selected) 
  { 
    string noid = this.cblNo.Items[i].Value; //得到多选框选中的id 
    char[] c = noid.ToCharArray();
            noid = "";
            for (int i = 0; i < c.Length; i++)
            {
                noid += c[i] + ",";
            }
            noid = noid.Trim(',');
    Response.Write(noid);//输出结果是123456 
  } 
                              
} 

[teerhu]

[Quote=引用 2 楼 liherun 的回复:]
C# codefor (int i=0; i<this.cblNo.Items.Count; i++)
{string noNames="";if (this.cblNo.Items[i].Selected)
{string noid=this.cblNo.Items[i].Value;//得到多选框选中的idchar[] c= noid.ToCharArray();
?-
[/Quote]
up

[deyter]

for (int i = 0; i < this.cblNo.Items.Count; i++) 
{ 
  string noNames = ""; 
  if (this.cblNo.Items[i].Selected) 
  { 
    string noid = this.cblNo.Items[i].Value; //得到多选框选中的id 
    string noid1 = "";
            for (int i = 0; i < noid .Length; i++)
            {
                noid1 += noid.substring(i,1) + ",";
            }
            noid1 = noid1.Trim(',');
    Response.Write(noid1);//输出结果是1,2,3,4,5,6 
  } 
                              
} 

[ddsxd19]

拼下字符串啦～

string noid = "";
for (int i = 0; i < this.cblNo.Items.Count; i++) 
{ 
  string noNames = ""; //这个没用到吗~
  if (this.cblNo.Items[i].Selected) 
  {  
    if(noid != string.Empty)
    {
       noid += ",";
    }
    noid += this.cblNo.Items[i].Value; //得到多选框选中的id 
  }                           
} 
Response.Write(noid);//输出你也得等到循环完再输出吧

[jiangshun]

建议别这样处理，假如多选框的个数大于10呢，选出来的结果可能是1,2,3,12,4

for (int i = 0; i < this.cblNo.Items.Count; i++)
{
  string noNames = "";
  string noid="";
  foreach(ListItem   li   in  this.cblNo.Items)  
  {  
          if(li.Selected)  
           {
             noid += this.cblNo.Items[i].Value+",";
           }  
  }
  Response.Write(noid1)
                             
} 

[zcw840421]

楼上已经回答的够清楚了

[liherun]

[Quote=引用 6 楼 jiangshun 的回复:]
建议别这样处理，假如多选框的个数大于10呢，选出来的结果可能是1,2,3,12,4
C# codefor (int i=0; i<this.cblNo.Items.Count; i++)
{string noNames="";string noid="";foreach(ListItem liinthis.cblNo.Items)
{if(li.Selected)
{
noid+=this.cblNo.Items[i].Value+",";
}
}
Response.Write(noid1)

}
[/Quote] up

[md198687]

六楼的输出结果是1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,9,10,10,10,

[liherun]

string noid="";
foreach(ListItem   li   in  this.cblNo.Items)  
  {  
                       noid += this.cblNo.Items[i].Value+",";
            
  }
 Response.Write(noid);//输出结果是123456 
noid=noid.Trim(',');

[tkscascor]

lz 我怀疑你的想法 是把cblNo.Items 所有的选中项都列出来吧. 用逗号分隔?

StringBuilder str=new StringBuilder();
for (int i = 0; i < this.cblNo.Items.Count; i++)
{
string noNames = "";
if (this.cblNo.Items[i].Selected)
{
string noid = this.cblNo.Items[i].Value; //得到多选框选中的id
str.Append(noid+",");
}

}

Response.Write(str.ToString().substring(0,str.ToString().Length-1)) ;

[wartim]

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace WindowsApplication204
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            string noid = "123456";

            MessageBox.Show(GetIt(noid));

        }

        String GetIt(String S)
        {
            if (S.Length == 0)
                return String.Empty;
            else if (S.Length == 1)
                return S[0].ToString();
            else
                return S[0] + "," + GetIt(S.Remove(0, 1));
        }
    }
}

[md198687]

for (int i = 0; i < this.cblNo.Items.Count; i++)
{
string noNames = "";
if (this.cblNo.Items[i].Selected)
{
string noid = this.cblNo.Items[i].Value; //得到多选框选中的id
Response.Write(noid);//输出结果是123456
}

}
怎样把123456变成1 2 3 4...
分别存到数据库里面，数据库字段是int型的

[md198687]

我是要把复选框的值取出来，用int型，分别存到数据库里面

[mbh0210]

[Quote=引用 6 楼 jiangshun 的回复:]
建议别这样处理，假如多选框的个数大于10呢，选出来的结果可能是1,2,3,12,4
C# codefor (int i=0; i<this.cblNo.Items.Count; i++)
{string noNames="";string noid="";foreach(ListItem liinthis.cblNo.Items)
{if(li.Selected)
{
noid+=this.cblNo.Items[i].Value+",";
}
}
Response.Write(noid1)

}
[/Quote]

如果有重复，你可以在noid+=this.cblNo.Items[i].Value+",";
先判断this.cblNo.Items[i].Value+"," 是否存在，存在就不增加就ok
修改为：
if (noid.IndexOf(this.cblNo.Items[i].Value+",") == -1)
{
noid+=this.cblNo.Items[i].Value+",";

}

[jiangshun]

[Quote=引用 13 楼 md198687 的回复:]
for (int i = 0; i < this.cblNo.Items.Count; i++)
{
string noNames = "";
if (this.cblNo.Items[i].Selected)
{
string noid = this.cblNo.Items[i].Value; //得到多选框选中的id
Response.Write(noid);//输出结果是123456
}

}
怎样把123456变成1 2 3 4...
分别存到数据库里面，数据库字段是int型的
[/Quote]

for (int i = 0; i < this.cblNo.Items.Count; i++)
{
string noNames = "";
string noid="";
foreach(ListItem li in this.cblNo.Items)
{
if(li.Selected)
{
//可以在这调用插入数据的方法
}
}
Response.Write(noid1)

}

[zuoming120]

//foreach (DataRow dr in sheetNames.Rows)
//{
// al.Add(dr[2]+",");
//}