Error Occurs while Paging in Datagrid!.......

[Prabs frm PGP]

Hi I want to do paging in the datalist. For that i wrote the code: public int intStart=0; private void Page_Load(object sender, System.EventArgs e) { if(!IsPostBack) { ViewState ["Start"]= 0; list(); } } public void list() { conn.Open(); SqlDataAdapter sda = new SqlDataAdapter("select name from sampledatagrid",conn); DataSet ds1 = new DataSet(); intStart = (int) ViewState["Start"]; ViewState ["PageSize"]=7; sda.Fill(ds1,intStart,(int)ViewState["PageSize"],"sampledatagrid"); dlistSample.DataSource=ds1.Tables[0].DefaultView; dlistSample.DataBind(); conn.Close(); } private void lnkPrevious_Click(object sender, System.EventArgs e) { intStart = (int) ViewState["Start"] -(int) ViewState["pageSize"]; ViewState["Start"] = intStart; if (intStart <= 0 ) { ViewState["Start"] = 0; } list(); } private void lnkNext_Click(object sender, System.EventArgs e) { int dlistcount = dlistSample.Items.Count; intStart = (int)ViewState["Start"] + (int)ViewState["pageSize"]; ViewState["Start"] = intStart; if ( dlistcount < (int)ViewState["pageSize"] ) { ViewState["Start"] = (int)ViewState["Start"] - (int)ViewState["pageSize"]; } list(); } } Here the values are displayed correctly in the Datalist., But If i cliks the Next or previus linkbutton(<< or >>) at the time it shows the error: Object reference not set to an instance of an object. Error occured in this line: intStart = (int)ViewState["Start"] + (int)ViewState["pageSize"]; How can we solve this one? Prabu.T

[Vipin Venugopal]

on the pageindexchanged event of the datagrid write this code. DataGrid.CurrentPageIndex = e.NewPageIndex; after this line call the datagrid to load the contents again this will work fine. Vipin