GridView中实现CheckBox的全选

用服务器端的方法:
在页面上放一个gridview控件,配置好数据源,编辑列,添加一个模版列,再编辑模版,放入一个checkbox控件。代码如下:

<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
        DataKeyNames
="AreaID" DataSourceID="SqlDataSource1">
        
<Columns>
            
<asp:BoundField DataField="AreaID" HeaderText="AreaID" ReadOnly="True" SortExpression="AreaID" />
            
<asp:BoundField DataField="CityID" HeaderText="CityID" SortExpression="CityID" />
            
<asp:TemplateField>
                
<HeaderTemplate>
                    
<asp:CheckBox ID="chkAll" runat="server" AutoPostBack="True" OnCheckedChanged="chkAll_CheckedChanged" />
                
</HeaderTemplate>
                
<ItemTemplate>
                    
<asp:CheckBox ID="chkItem" runat="server" />
                
</ItemTemplate>
            
</asp:TemplateField>
        
</Columns>
    
</asp:GridView>
后台cs代码:
 protected void chkAll_CheckedChanged(object sender, EventArgs e)
    
{
        
for (int i = 0; i < this.GridView1.Rows.Count; i++)
        
{
            ((CheckBox)GridView1.Rows[i].FindControl(
"chkItem")).Checked = ((CheckBox)this.GridView1.HeaderRow.FindControl("chkAll")).Checked;
        }

    }

用脚本实现:
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
        DataKeyNames
="AreaID" DataSourceID="SqlDataSource1">
        
<Columns>
            
<asp:BoundField DataField="AreaID" HeaderText="AreaID" ReadOnly="True" SortExpression="AreaID" />
            
<asp:BoundField DataField="CityID" HeaderText="CityID" SortExpression="CityID" />
            
<asp:TemplateField>
                
<HeaderTemplate>
                    
<input id="chkAll"  onclick="SelectAll(this)"; type=checkbox>
                
</HeaderTemplate>
                
<ItemTemplate>
                    
<input id="chkItem" type=checkbox>                
                 
</ItemTemplate>
            
</asp:TemplateField>
        
</Columns>
    
</asp:GridView>

再客户端写javascript
<script type="text/javascript">
       
function SelectAll(chkbox)
           
{
              
var box=chkbox;
              state
=theBox.checked;    
              elem
=box.form.elements;
              
for(i=0;i<elem.length;i++)
              
if(elem[i].type=="checkbox" && elem[i].id!=box.id)
               
{
                    
if(elem[i].checked!=state)
                    
{
                       elem[i].click();
                    }

               }

          }

  
</script>
posted on 2007-11-11 18:58  石川  阅读(255)  评论(1编辑  收藏  举报