Bad number format specifier using DataFormatString="{0:c}" 2025v2 399

Bad number format specifier using DataFormatString="{0:c}" 2025v2 399

Posted by: enrique.pv-ext on 9 January 2026, 6:43 am EST

• 

  enrique.pv-ext

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  Posted 9 January 2026, 6:43 am EST

  Hi,

  Migrate from 2010v1 to 2025v2 399 in ASP.NET WebForms NET Framework 4.8.1.

  Using C1GridView from C1.Web.Wijmo.Controls.48.dll

  My markup code:

  <cc2:C1BoundField  DataField="TOTAL_AMOUNT"  SortExpression="TOTAL_AMOUNT" DataFormatString="{0:c}">
                      <ItemStyle HorizontalAlign="Right" Width="100px" CssClass="GridNumber" />

  It works with 2010v1 version.
  
  Now, 2025v2 399 version, I get the error Bad number format specifier

  Uncaught Bad number format specifier: {
  u @ WijmoControlsResource.axd?

  If I delete DataFormatString=“{0:c}” , it works

  Any suggestions for use DataFormatString=“{0:c}” ?
  
  thanks a lot

• 

  aastha.gupta

  

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  Posted 13 January 2026, 1:30 am EST

  Hi,

  You can use DataFormatString=“c0” to achieve the desired behavior. Here is the code snippet for the same:

   <wijmo:C1BoundField DataField="TOTAL_AMOUNT"
   HeaderText="Amount"
   SortExpression="TOTAL_AMOUNT"
   DataFormatString="c">

  Kindly refer to the attached sample for full implementation. WebApplication1.zip

  Thanks & regards,
  
  Aastha

• 

  enrique.pv-ext

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  Posted 15 January 2026, 7:43 am EST - Updated 15 January 2026, 8:15 am EST

  Thx Aastha, please, confirm if you welcome

  DataFormatString="c0"

  OR

  DataFormatString="c"

  c0 vs c ?

  https://developer.mescius.com/componentone/docs/webforms/online-gridview/C1.Web.Wijmo.Controls.45~C1.Web.Wijmo.Controls.C1GridView.C1BoundField~DataFormatString.html

  DataFormatString Property (C1BoundField)
  
  Gets or sets the string that specifies the display format for items in the column.

  Note: Formatting of values is done on the client-side using globalize.min.js library. Use formatting patterns supported by that library, for more information on the library please check https://github.com/jquery/globalize

  Examples:

  “n” - displays numeric values in number format.
  
  “d” - displays numeric values in decimal format.
  
  “d” - displays date values in short date format.///
  
  “p” - displays numeric values in percentage format.
  
  “c” - displays numeric values in currency format.

  regards

• 

  kartik.dua

  

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  Posted 16 January 2026, 1:15 am EST

  Hi,

  The string “c” is the default .NET format specifier for currency formatting. By default, it formats the value with up to two decimal places. However, by specifying a number after “c”, such as “c0” or “c1”, you can customize the number of decimal places as per your requirement.

  Best Regards,
  
  Kartik