Question

Format A Column in a Data Grid as Percentage

Asked by: justinbillig

Just a little background. I am a beginner to intermidiate in ASP.NET so If I ask stupid questions please bear with me.

I am messing around with the data grid control. I have never used one before so I was working with tutorials from here http://aspnet.4guysfromrolla.com/articles/040502-1.aspx


I have a datagrid control that is bringing back 3 columns.

Everything is working ok, I used the gui to create it ( like I said I am just messing around ).

I create 3 bound columns, in the third column I want to format it as a percentage. so I used this string in the data formatting expression
{0:#%}


it works ok, but if it is less than 1% it only displays the % sign.

How can I have it display either the numer or something like <1%



Here is my results set ( Bad formatting but it is in table format )
Browser Count Browser Percentage
17607 MSIE 6.0 85%
1171 Unknown 6%
673 MSIE 5.5 3%
667 FF 1.0 3%
148 MSIE 5.01 1%
64 NS 7.2 %
57 Gecko Based %
53 MSIE 5.0 %
42 NS 7.1 %
19 FF 0.10 %
19 Safari 312 %
17 FF 0.9 %
16 Safari 412 %
10 NS 7.0 %
6 NS 8.0 %
5 FF 0.8 %
5 MSIE 5.23; For Mac %
5 Safari 125 %
4 FF 1.4 %
4 NS 6.0 %
2 Debian 1.5 - 2.1 %
2 MSIE 5.17; For Mac %
2 MSIE 6.0b %
1 Mozilla 4 %
1 MSIE 5.15; For Mac %
1 MSIE 5.22; For Mac %
1 Opera 8.0 %
1 Safari 85 %




here is my datagrid code

                  <asp:datagrid id="dgUserInformation" runat="server" Width="85%" BackColor="#EEEEEE" Font-Size="10pt"
                        Font-Name="Verdana" HorizontalAlign="Center" AutoGenerateColumns="False" Font-Names="Verdana">
                        <AlternatingItemStyle BackColor="White"></AlternatingItemStyle>
                        <HeaderStyle Font-Bold="True" HorizontalAlign="Center" ForeColor="White" BackColor="Black"></HeaderStyle>
                        <Columns>
                              <asp:BoundColumn DataField="intBrowserCount" HeaderText="Browser Count"></asp:BoundColumn>
                              <asp:BoundColumn DataField="strBrowser" HeaderText="Browser"></asp:BoundColumn>
                              <asp:BoundColumn DataField="sngPercentage" HeaderText="Percentage" DataFormatString="{0:#%}"></asp:BoundColumn>
                        </Columns>
                  </asp:datagrid>

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Asked On
2005-11-08 at 08:43:11ID21623471
Tags

percentage

,

dataformatstring

,

format

Topic

Programming for ASP.NET

Participating Experts
2
Points
50
Comments
4

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Answers

 

by: valkyrie_ncPosted on 2005-11-08 at 09:38:48ID: 15249325

How are you returning the percentage from the db?  You could return it as a varchar and attach the % sign there, and just disregard the dataformatstring entirely.

hth

valkyrie_nc

 

by: justinbilligPosted on 2005-11-08 at 10:01:15ID: 15249552

The values are being returned as a floating point number. I know that I could, but this is a purely academic ( on my own not homework or anything ) page, so I was wondering if in the DataFormatString if there is any way I could specify, if the value is empty put a zero or a <1%

 

by: ibostPosted on 2005-11-08 at 10:28:53ID: 15249844

Use {0:Pn} where 'n' is however many decimal places you want:

For no decimal places:
DataFormatString="{0:P0}"

For 2 decimal places
DataFormatString="{0:P2}"

etc etc


 

by: justinbilligPosted on 2005-11-08 at 11:26:52ID: 15250447

ibost, thank you

20120131-EE-VQP-002

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