gridview奇怪问题

Question

你是不是在itemdatabound事件里操作？

Answer 1

<asp:GridView ID="gvComUnion" runat="server" AllowPaging="True"   AutoGenerateColumns="False"
       BackColor="White" BorderColor="#3366CC" BorderStyle="Solid" BorderWidth="1px"
       CellPadding="2" Font-Size="12px" HorizontalAlign="Left" OnPageIndexChanging="gvComUnion_PageIndexChanging" 
       OnRowEditing="gvComUnion_RowEditing" PageSize="12" Width="545px" OnRowDataBound="gvComUnion_RowDataBound" OnLoad="gvComUnion_Load" OnRowCreated="gvComUnion_RowCreated" Font-Names="宋体" OnSelectedIndexChanged="gvComUnion_SelectedIndexChanged" AllowSorting="True" >
       <PagerSettings FirstPageText="第一页" LastPageText="最后一页" Mode="NextPreviousFirstLast"
         NextPageText="下一页" PreviousPageText="上一页"/>
       <FooterStyle BackColor = "#EFEFEF" ForeColor = "#000D47"/>
        <Columns>
        <asp:BoundField DataField="ID" HeaderText="ID">
        <ItemStyle HorizontalAlign="Left"/>
                <HeaderStyle Width="30px"/>
            </asp:BoundField>/////--------------------第一列
          <asp:TemplateField>
                <HeaderTemplate>
                  <asp:CheckBox ID="ckbSelect" runat="server" Text="全选" OnCheckedChanged="CheckAll"  Width="40px" AutoPostBack="True"/>
                </HeaderTemplate>
                <ItemTemplate>
                  <asp:CheckBox ID="ItemCheckBox" runat="server" />
                </ItemTemplate>
              </asp:TemplateField>/////--------------------第二列            <asp:BoundField DataField="COMID"  HeaderText="编号">
                <ItemStyle HorizontalAlign="Left" />
                <HeaderStyle Width="30px" />
            </asp:BoundField>
            <asp:BoundField DataField="COMNAME"  HeaderText="单位名称">
                <ItemStyle HorizontalAlign="Left" />
                <HeaderStyle Width="100px" />
            </asp:BoundField>
                
            <asp:BoundField DataField="COMINLOW" HeaderText="所有制">
                <ItemStyle HorizontalAlign="Left" />
                <HeaderStyle Width="90px" />
            </asp:BoundField>
            <asp:BoundField DataField="BUSINESS" HeaderText="行业">
                <ItemStyle HorizontalAlign="Left" />
                <HeaderStyle Width="90px" />
            </asp:BoundField>
            <asp:BoundField DataField="DISTRICT" HeaderText="所在区">
                <ItemStyle HorizontalAlign="Left" />
                <HeaderStyle Width="40px" />
            </asp:BoundField>
            <asp:BoundField DataField="STATUS" HeaderText="状态">
                <ItemStyle HorizontalAlign="Left" />
                <HeaderStyle Width="30px" />
            </asp:BoundField>
            <asp:CommandField EditText="详细信息" HeaderText="详细信息" ShowEditButton="True">
                <HeaderStyle Width="60px" />
            </asp:CommandField>        </Columns>        <RowStyle ForeColor="#003399" HorizontalAlign="Center" />
        <SelectedRowStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCFF99" />
        <PagerStyle BackColor="#EFEFEF" ForeColor="#003399" HorizontalAlign="Right" />
        <HeaderStyle BackColor="#003399" BorderStyle="None" Font-Bold="True" ForeColor="White" />
        <AlternatingRowStyle BackColor="#EFEFEF" />
        
    </asp:GridView>
这样写的，运行后始终看不到第一列。

Answer 2

protected void gvComUnion_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
           
            e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='#FFEFD5'");
                      e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentcolor");                  }
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            if ((e.Row.Cells[3].Text).Length > 8 && (e.Row.Cells[3].Text!="&nbsp;"))
            {
                e.Row.Cells[3].Text = (e.Row.Cells[3].Text).Substring(0, 8) + "...";
            }
            if ((e.Row.Cells[4].Text).Length > 6 && (e.Row.Cells[4].Text != "&nbsp;"))
            {
                e.Row.Cells[4].Text = (e.Row.Cells[4].Text).Substring(0, 6) + "...";
            }
            if ((e.Row.Cells[5].Text).Length > 6 && (e.Row.Cells[5].Text!="&nbsp;"))
            {
                e.Row.Cells[5].Text = (e.Row.Cells[5].Text).Substring(0, 6) + "...";
            }
        }
            }
有什么问题吗？

Answer 3

有进展了
在 protected void gvComUnion_RowDataBound(object sender, GridViewRowEventArgs e)
加一句
 e.Row.Cells[0].Visible = true;
就能显示了，问题是为什么不加就不能显示啊？

Answer 4

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