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  • How to extend ASP.NET datagrid for multiselection of data rows.

    <Columns>
     <asp:TemplateColumn>
      <HeaderTemplate>
       <asp:CheckBox id="chkAll"
          <B>onclick="javascript:SelectAllCheckboxes(this);"</B> runat="server"
        AutoPostBack="false" ToolTip="Select/Deselect All" />
      </HeaderTemplate>
      <ItemTemplate>
        <asp:CheckBox id="chkSelect" <B>onclick="javascript:HighlightRow(this);"</B>
            runat="server"<B>OnCheckedChanged= "grdEmployees_CheckedChanged"</B>
            AutoPostBack="false" />
      </ItemTemplate>
     </asp:TemplateColumn>
    </Columns>

     //-------------------------------------------------------------
        // Select all the checkboxes (Hotmail style)
        //-------------------------------------------------------------
        function SelectAllCheckboxes(spanChk){
       
        // Added as ASPX uses SPAN for checkbox
        var oItem = spanChk.children;
        var theBox=oItem.item(0)
        xState=theBox.checked;   

            elm=theBox.form.elements;
            for(i=0;i<elm.length;i++)
            if(elm[i].type=="checkbox" && elm[i].id!=theBox.id)
                {
                //elm[i].click();
                if(elm[i].checked!=xState)
                elm[i].click();
                //elm[i].checked=xState;
                }
        }

        //-------------------------------------------------------------
        //----Select highlish rows when the checkboxes are selected
        //
        // Note: The colors are hardcoded, however you can use
        //       RegisterClientScript blocks methods to use Grid's
        //       ItemTemplates and SelectTemplates colors.
        //         for ex: grdEmployees.ItemStyle.BackColor OR
        //                 grdEmployees.SelectedItemStyle.BackColor
        //-------------------------------------------------------------
        function HighlightRow(chkB)    {
        var oItem = chkB.children;
        xState=oItem.item(0).checked;   
        if(xState)
            {chkB.parentElement.parentElement.style.backgroundColor='lightcoral';
               // grdEmployees.SelectedItemStyle.BackColor
             chkB.parentElement.parentElement.style.color='white';
               // grdEmployees.SelectedItemStyle.ForeColor
            }else
            {chkB.parentElement.parentElement.style.backgroundColor='white';
                 //grdEmployees.ItemStyle.BackColor
             chkB.parentElement.parentElement.style.color='black';
                 //grdEmployees.ItemStyle.ForeColor
            }
        }
        // -->



    转自  http://www.codeproject.com/aspnet/Multi-select_Dataagrid.asp
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  • 原文地址:https://www.cnblogs.com/gwazy/p/111120.html
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