按行格式化Gridview浮点值

Question

I have a gridview 'leading_GridView' that's databound to a SQLDataSource. Many of the values are floats that I would like to format to percentages or decimals rounded to 2 decimal places. I cannot do this with a DataFormatString because the columns contain different units. I want to check the values in the first column and format the floats in that row accordingly.

My code:

Columns 1 and 2 contain string data, they're essentially row headers. The following columns contain the float values.

<asp:GridView ID="leading_GridView" runat="server" DataSourceID="leading_SqlDataSource" Style="align-content: center; margin-left: auto; margin-right: auto;" class="centerText gridview" 
             AutoGenerateColumns="False" Font-Bold="True" ForeColor="#33CCCC" BackColor ="Black" BorderColor="#33CCCC" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" CellSpacing="3" ShowHeaderWhenEmpty="True" EmptyDataText="No records found" Visible="False">
    <Columns>
        <asp:BoundField DataField="Indicator" HeaderText="Indicator" HeaderStyle-ForeColor="Black"/>
        <asp:BoundField DataField="Alias" HeaderText="Alias" HeaderStyle-ForeColor="Black"/>
        <asp:BoundField DataField="Prev_Year" HeaderText="Prev. Year" HeaderStyle-ForeColor="Black"/>
        <asp:BoundField DataField="Curr_Year" HeaderText="Curr. Year" HeaderStyle-ForeColor="Black"/>            
    </Columns> 
</asp:GridView>

Query:

leading_SqlDataSource.ConnectionString = connectionstring;
leading_SqlDataSource.SelectCommand = "Select Indicator, Alias, Prev_Year, Curr_Year FROM dbo.line_level";
leading_SqlDataSource.DataBind();
leading_GridView.DataBind();

Answer 1

只需调用RowDataboundEvent，然后根据需要检查特定的列值和格式。