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				怎樣動態添加文本框并處理
			
          
 			Posted on 2007-01-04 14:44 碼農cz 閱讀(1429) 評論(1)  編輯  收藏  所屬分類: As u 
			
			


		
          
		
          
		
          我在做項目時曾碰到這個問題，怎樣動態地添加一個文本框或文件域，這在網上很容易找到。但對怎樣處理提交的動態數據就很少有這方面的信息了。本人翻閱了一些資料，把自己的方法寫了下來，以饗讀者。
          
		
          1.提交表單
          
		
          ?
          
		
          
				
				<html>
          <body>
          ?<form?name          
				=
				"
				form
				"
				?method
				=
				"
				post
				"
				?action
				=
				"
				add.jsp
				"
				>
          ???<input?name          
				=
				"
				button
				"
				?type
				=
				button?onClick
				=
				'additem(
				"
				tb
				"
				)'?value
				=
				"
				添加>>
				"
				>
          ?<table?id          
				=
				"
				tb
				"
				>
          ?</table>
          <script?language          
				=
				"
				javascript
				"
				>

          function?additem(id)
          {
          ??var?row          
				,
				cell
				,
				str
				;
          
				??row?
				=
				?eval(
				"
				document.all[
				"
				+'
				"
				'+id+'
				"
				'+
				"
				]
				"
				).insertRow()
				;
          
				??if(row?!
				=
				?null?)
          ?????{
          ????????cell?          
				=
				?row.insertCell()
				;
          
				????????str
				=
				"
				<input?type=
				"
				+'
				"
				'+
				"
				text
				"
				+'
				"
				'+
				"
				?name=
				"
				+'
				"
				'+
				"
				StuName
				"
				+'
				"
				'+
				"
				><input?type=
				"
				+'
				"
				'+
				"
				button
				"
				+'
				"
				'+
				"
				?value=
				"
				+'
				"
				'+
				"
				刪除
				"
				+'
				"
				'+
				"
				?onclick='deleteitem(this,
				"
				+'
				"
				'+
				"
				tb
				"
				+'
				"
				'+
				"
				);'>
				"
				
						
          
						???cell.innerHTML          
				=
				str
				;
          
				
						
          
						??????}
          }
          function?deleteitem(obj          
				,
				id)
          {
          ??var?rowNum          
				,
				curRow
				;
          
				??curRow?
				=
				?obj.parentNode.parentNode
				;
          
				??rowNum?
				=
				?eval(
				"
				document.all.
				"
				+id).rows.length?-?
				1
				;
          
				??eval(
				"
				document.all[
				"
				+'
				"
				'+id+'
				"
				'+
				"
				]
				"
				).deleteRow(curRow.rowIndex)
				;
          
				}
          </script>
          ???<p>
          ?????<input?type          
				=
				"
				submit
				"
				?name
				=
				"
				submit
				"
				?value
				=
				"
				提交
				"
				>
          ???</p>
          ?</form>
          </body>
          </html>
          
		
          
		
          ?
          
		
          2.處理數據
          
		
          
				
				<
				body
				>
				
						
          
						
				          
				<
				table?
				border
				="1"
				><
				tr
				><
				td?
				colspan
				="2"
				>
				eg
				</
				td
				></
				tr
				>
				
						
          
						
						
				          
				<%
				
				
						
								
          
								Enumeration?params          
						=
						request.getParameterNames();
          
						while
						(params.hasMoreElements()){
          
						String
						?name
						=
						(
						String
						)params.nextElement();
          
						String
						[]?values
						=
						request.getParameterValues(name);
          
						if
						(name.equals(
						"
						StuName
						"
						)){
          
				          
				%>
				
						
          
						
				          
				<
				tr
				>
				
						
          
						
				          
				<
				td
				>
				<%
				=
				name
				%>
				</
				td
				>
				
						
          
						
				          
				<
				td
				>
				
						
          
						
						
				          
				<%
				
				
						
								
          
								
						          
						for
						(
						int
						?index
						=
						0
						;index
						<
						values.length;index
						++
						){
          
				          
				%>
				
						
          
						
				          
				<%
				=
				values[index]
				%>
				
						
          
						
						
				          
				<%
				
				
						}}
				
				%>
				
						
          
						
				          
				</
				td
				>
				
						
          
						
				          
				</
				tr
				>
				
						
          
						
				          
				</
				table
				>
				
						
          
						
				          
				</
				body
				>
				
						
          
						
				          
		
          
		
          

          
	
          
	


          
	    
    

          

          評論
          
	
			
          
				
          
					
          
						# re: 怎樣動態添加文本框并處理  回復  更多評論
						  
					
          
					2007-10-26 14:46 by 123
				
          
				
          good ，thx！
          
			
          
		




          








          

				
			
          
		          		
	
          
	
          
		
			


		
	
          

          


    







          
        
	




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