Error On Eval Column Total [Answered] RSS

• • Reply
  asp.ambur

  Member

  399 Points

  1101 Posts

  Error On Eval Column Total

  Jan 12, 2017 06:24 PM|asp.ambur|LINK

  Hi

  This is my aspx code

   <asp:TemplateField HeaderText="Closing Qty">                   
                      <ItemTemplate>
                          <asp:Label ID="L4" runat="server" Text='<%# Convert.ToDouble(Eval("A_Closing_Qty")) + Convert.ToDouble(Eval("C_Closing_Qty")) + Convert.ToDouble(Eval("C_Closing_Qty")) %>'></asp:Label>
                      </ItemTemplate>   
                      <FooterTemplate>
                          <asp:Label ID="GTV4" runat="server"></asp:Label>
                      </FooterTemplate>                
                      <ItemStyle BackColor="#8080FF" ForeColor="White" HorizontalAlign="Right" />
                  </asp:TemplateField>

  and my c# asp.net Code Behind

   Decimal dPageTotal4;
    protected void GMainGodown_RowDataBound(object sender, GridViewRowEventArgs e)
      {
  
    Label lblPgTotal4 = (Label)e.Row.FindControl("L4");
              lblPgTotal4 += Decimal.Parse(lblPgTotal4.Text);
  
   Label lblPageTotal4 = (Label)e.Row.FindControl("GTV4");
              lblPageTotal4.Text = dPageTotal4.ToString("N2");
  }

  Why im getting this below error

  Message: CS0019: Operator '+=' cannot be applied to operands of type 'System.Web.UI.WebControls.Label' and 'decimal'

• • Reply
  codemovement...

  Contributor

  2340 Points

  807 Posts

  Re: Error On Eval Column Total

  Jan 12, 2017 06:46 PM|codemovement.pk|LINK

  what you are trying to do in this line

  lblPgTotal4 += Decimal.Parse(lblPgTotal4.Text);

  If my solution works for you, please mark it as answer! It will help others.
  Get more information: http://codemovement.pk
  
  Thanks,
• • Reply
  asp.ambur

  Member

  399 Points

  1101 Posts

  Re: Error On Eval Column Total

  Jan 12, 2017 07:17 PM|asp.ambur|LINK

  codemovement.pk

  what you are trying to do in this line

  lblPgTotal4 += Decimal.Parse(lblPgTotal4.Text);

  adding column values L4

• • Reply
  codemovement...

  Contributor

  2340 Points

  807 Posts

  Re: Error On Eval Column Total

  Jan 12, 2017 09:03 PM|codemovement.pk|LINK

  then do it like this

  lblPgTotal4.Text = (Decimal.Parse(lblPgTotal4.Text) + Decimal.Parse(lblPgTotal4.Text)).ToString();

  If my solution works for you, please mark it as answer! It will help others.
  Get more information: http://codemovement.pk
  
  Thanks,
• • Reply
  oned_gk

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  52683 Points

  15720 Posts

  Re: Error On Eval Column Total

  Jan 12, 2017 11:11 PM|oned_gk|LINK

  use gv databound event and loop the rows

  before loop, set total to zero

  Programming to simplify, don't look for difficult way
  Suwandi - Non Graduate Programmer
• • Reply
  AngelinaJoli...

  Contributor

  5290 Points

  2307 Posts

  Re: Error On Eval Column Total

  Jan 13, 2017 10:32 AM|AngelinaJolie|LINK

   Hi ambur,

  The reason for your error is because label is assigned to string. as the solution of the above person, we guess you want to assign value to text of the label control, so try the above answer.

  Best regards,

  Jolie

  MSDN Community Support
  Please remember to click "Mark as Answer" the responses that resolved your issue.
  If you have any compliments or complaints to MSDN Support, feel free to contact MSDNFSF@microsoft.com.
  
• • Reply
  oned_gk

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  52683 Points

  15720 Posts

  Re: Error On Eval Column Total

  Jan 16, 2017 01:40 AM|oned_gk|LINK

      Decimal dPageTotal4;
      protected void GMainGodown_DataBound(object sender, EventArgs e)
      {
          dPageTotal4 = 0;
          foreach (GridViewRow row in GMainGodown.Rows)
          {
              decimal l4;
             Decimal.TryParse(((Label)row.FindControl("L4")).Text,out l4);
              dPageTotal4 += l4;
          }
          lblPageTotal4.Text = dPageTotal4.ToString("N4");
      }

  Programming to simplify, don't look for difficult way
  Suwandi - Non Graduate Programmer