Gridview Footer Total Column

Question

I want In gridview footer the total is not genrated it gives me error - 'Object reference not set to an instance of an object.'

Mageshwaran R · Answer

Hi Vinita, Try this code(Solved your error): //Aspx: add gridview column asp:TemplateField HeaderText = "Net Amount" > ItemTemplate > asp:Label ID = "lblnet_amnt" runat = "server" Text = ' ' > asp:Label > ItemTemplate > FooterTemplate > asp:Label ID = "lbl_total" runat = "server" Text = "" Font-Size = "Large" Font-Bold = "true" ForeColor = "#4dd52b" > asp:Label > FooterTemplate > asp:TemplateField > //Aspx.cs: decimal D_pagetotal; //Gridview RowDataBound event protected void grdview_RowDataBound( object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { Label lbl_total = (Label)e.Row.FindControl( "lblnet_amnt" ); D_pagetotal += Decimal.Parse(lbl_total.Text); } if (e.Row.RowType == DataControlRowType.Footer) { Label lbl_grand_total = (Label)e.Row.FindControl( "lbl_total" ); lbl_grand_total.Text = D_pagetotal.ToString(); } }

Sonu Gupta · Answer

Hi, Please read the following article - 1:- https://www.c-sharpcorner.com/UploadFile/77a82c/add-row-total-in-gridview-footer-in-Asp-Net/ 2:- https://www.aspsnippets.com/Articles/Display-sum-of-Columns-total-in-GridView-Footer-in-ASPNet-using-C-and-VBNet.aspx

Rajanikant Hawaldar · Answer

Hi Dear, this is simple error comes when object is null, your trying to access it so throwing error, go to execption settings check the checkboxes then execute it will show you where exactly exception is occuring Thanks

Chittaranjan Swain · Answer

Hi vinita, Refer below links, https://www.aspsnippets.com/Articles/Display-sum-of-Columns-total-in-GridView-Footer-in-ASPNet-using-C-and-VBNet.aspx https://www.c-sharpcorner.com/UploadFile/77a82c/add-row-total-in-gridview-footer-in-Asp-Net/ https://www.aspdotnet-suresh.com/2011/02/how-to-display-sum-of-columns-total-in.html http://www.codingfusion.com/Post/3-ways-to-display-sum-of-columns-total-in-gridview https://www.encodedna.com/2013/06/sum-of-gridview-column-in-footer.htm https://www.codeproject.com/Questions/447455/How-to-do-Total-sum-in-Gridview-Footer-in-Asp-net