Question

我有这个GridView：

<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1" 
        AllowPaging="True" PageSize="20" CellPadding="4" ForeColor="#333333" GridLines="None">
        <AlternatingRowStyle BackColor="White" />
        <EditRowStyle BackColor="#2461BF" />
        <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
        <RowStyle BackColor="#EFF3FB" />
        <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
        <SortedAscendingCellStyle BackColor="#F5F7FB" />
        <SortedAscendingHeaderStyle BackColor="#6D95E1" />
        <SortedDescendingCellStyle BackColor="#E9EBEF" />
        <SortedDescendingHeaderStyle BackColor="#4870BE" />

    </asp:GridView>

此ID为SqlDataSource1：

<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
                ConnectionString="<%$ ConnectionStrings:connectionString %>" 
                ProviderName="<%$ ConnectionStrings:connectionString.ProviderName %>" 
                SelectCommand="SELECT count(city),city FROM users GROUP by city ORDER BY count(city) DESC;" ></asp:SqlDataSource>

GridView列中的标题为count(city),city。

我应该如何更改列名？

Answer 1

将您的SQL更改为：

SelectCommand = "SELECT count(city) As CityCount, city FROM users ..."

因此，使用ALIAS

将标题重命名为CityCount

为了获得更大的灵活性，请停用Gridview的自动生成列并手动指定：AutoGenerateColumns="False"

<asp:GridView AutoGenerateColumns="False" ID="GridView1" runat="server" 
    DataSourceID="SqlDataSource1" AllowPaging="True" PageSize="20" 
    CellPadding="4" ForeColor="#333333" GridLines="None">
    <asp:BoundField DataField="CityCount" HeaderText="Number of Cities" />
</asp:GridView>

Answer 2

您可以使用别名更改您的 Sql select query，并在其答案中提及

OR

代码：动态设置headertext

GridView1.Columns[ColumnIndex].HeaderText = "Header text";

Answer 3

试试这个

    <asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1" AllowPaging="True"
    PageSize="20" CellPadding="4" ForeColor="#333333" GridLines="None" AutoGenerateColumns="false"><%--add attribute AutoGenerateColumns="false" --%>
    <AlternatingRowStyle BackColor="White" />
    <EditRowStyle BackColor="#2461BF" />
    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
    <RowStyle BackColor="#EFF3FB" />
    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
    <SortedAscendingCellStyle BackColor="#F5F7FB" />
    <SortedAscendingHeaderStyle BackColor="#6D95E1" />
    <SortedDescendingCellStyle BackColor="#E9EBEF" />
    <SortedDescendingHeaderStyle BackColor="#4870BE" />
    <Columns>
    <asp:BoundField HeaderText="Total" DataField="City_Total" />
    <asp:BoundField HeaderText="City" DataField="City" /> <%--Header  Text => Whatever you want to display as name ;DataField=> name of field--%>
    </Columns>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:connectionString %>"
    ProviderName="<%$ ConnectionStrings:connectionString.ProviderName %>" SelectCommand="SELECT count(city) as City_Total,city FROM users GROUP by city ORDER BY count(city) DESC;">
</asp:SqlDataSource>

Answer 4

将您的sql查询更改为以下

SELECT count(city) As CityCount, city FROM users GROUP by city ORDER BY count(city) DESC;"

然后在网格视图中添加绑定字段，标题文本设置为您想要的任何内容

<Columns>
    <asp:BoundField DataField="CityCount" HeaderText="City Count" 
                                                SortExpression="CityCount" /> 
    <asp:BoundField DataField="city" HeaderText="City " 
                                                SortExpression="city" /> 
</Columns>

Answer 5

您应该像这样更改

SELECT count(city) AS CityCount, city FROM users GROUP by city ORDER BY count(city) DESC;

Answer 6

您可以更改您的SQL

  CMD="SELECT Count(City) As Count_City, etc,... FROM [Tbl_Name]

Answer 7

从我看到的地方，你可以做两种方式：

1）更新您的SQL查询：

SELECT count(city) as CityCount,city as CityName FROM users GROUP by city ORDER BY count(city) DESC;

2）使用gridview的'TEMlateField'或BoundField功能（然后自己定义列）：

<asp:TemplateField HeaderText="Discount" HeaderText="City Count" >
    <ItemTemplate>   
        <asp:Literal ID="CityCount" runat="server" Text='<%# Eval("CityCount").ToString() %>'></asp:Literal>
  </ItemTemplate>                     
</asp:TemplateField>

在这种情况下，不要忘记将以下属性添加到gridview中，否则你将有重复的列......：

AutoGenerateColumns="false"

GridView列标题文本

7 个答案: