Sunday, November 11, 2012

Scrollable Gridview with fixed headers in asp.net

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Copying Gridview into divHeaderRow show only header,hide all rows and applying style to it so that divHeaderRow placed onto the top of the Gridview header row.

If isFooter is true then Copying Gridview Footer row into divFooterRow and applying style to divFooterRow.

Copy and paste given bellow javascript code inside the <head> tag.
        

    //*** Set divMainContent Properties ****

<script>

function  MakeStaticHeader(gridId, height, width,
headerHeight, isFooter)
 {



       
var tbl = document.getElementById(gridId);



       
if (tbl) {





  DivMC.style.width = width + 'px'; 

DivMC.style.height = height + 'px';

  DivMC.style.position = 'relative'; 

DivMC.style.top = -headerHeight + 'px'; 

 DivMC.style.zIndex = '1';





     //*** Set divFooterRow Properties ****



DivFR.style.width = (parseInt(width) - 16) + 'px'; 

DivFR.style.position = 'relative'; 

DivFR.style.top = -headerHeight + 'px'; 

DivFR.style.verticalAlign = 'top'; 

 DivFR.style.paddingtop = '2px'; 
 
if (isFooter) {  var tblfr = tbl.cloneNode(true); 

 tblfr.removeChild(tblfr.getElementsByTagName('tbody')[0]); 

var tblBody = document.createElement('tbody');  tblfr.style.width = '100%'; 

tblfr.cellSpacing = "0"; 

tblfr.border = "0px";  

tblfr.rules = "none";





//*****In the case of Footer Row *******

     tblBody.appendChild(tbl.rows[tbl.rows.length - 1]); 

tblfr.appendChild(tblBody); 

 DivFR.appendChild(tblfr);  }



     //****Copy Header in divHeaderRow****



     DivHR.appendChild(tbl.cloneNode(true)); 

       } 
 }
    

 function OnScrollDiv(Scrollablediv) { 

        document.getElementById('DivHeaderRow').scrollLeft = Scrollablediv.scrollLeft; 

       document.getElementById('DivFooterRow').scrollLeft = Scrollablediv.scrollLeft; 

} </script>



Then Copy this code and paste and place your Grid View inside DivMainContent.
HTML Code:-

     <div id="DivRoot" align="left">

        <div style="overflow: hidden;gj" id="DivHeaderRow">

        </div>



        <div style="overflow:scroll;" onscroll="OnScrollDiv(this)" id="DivMainContent">

         

          <%--  Place Your GridView Here

    <asp:GridView  runat="server"  ID="gridshow" Width="100%" AutoGenerateColumns="False"ShowFooter="True">

             <Columns>

                    //...................

             </Columns>

           </asp:GridView>

          --%>

        

        </div>



        <div id="DivFooterRow" style="overflow:hidden">

    &nbs;   </div>

    </div> 



  


Then Call function script functon

MakeStaticHeader

in Aspx.CS File at the time of binding Gridview and pass the Some parameters


>

  •     ClientId of Gridview(Change GrdDisplay.ClientID as your gridview clientid)
  •     Height of Scrollable div
  •     Width of Scrollable div
  •     Height of Table Header Row
  •     IsFooter (true/false) If you want to Make footer static or not.



Default.aspx.cs :

     protected void btnBindGrid_Click(object sender, EventArgs e)

    {

      //Fill Ds

      gridShow.DataSource = ds;

      gridShow.DataBind();

    ScriptManager.RegisterStartupS

cript(Page, this.GetType(), "Key", "<script>MakeStaticHeader('" + GrdDisplay.ClientID + "', 400, 950 , 40 ,true); </script>", false);

    } 



  </div>
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