Question

我正在尝试删除gridview中的一些列。然后这个方法是由我试过的人提供的

protected void yourGrid_RowCreated(object sender, GridViewRowEventArgs e)
{
    e.Row.Cells[7].Visible = false;
    e.Row.Cells[8].Visible = false;
    e.Row.Cells[9].Visible = false;
}

和

GWCase.DataSource = ds;
GWCase.DataBind();

GWCase.Columns[7].Visible = false;
GWCase.Columns[8].Visible = false;
GWCase.Columns[9].Visible = false;

gridview和SQL Server的绑定在页面加载时完成。这就是我的页面加载的样子

protected void Page_Load(object sender, EventArgs e)
{
    SqlConnection conn = new SqlConnection();
    conn.ConnectionString = "Data Source = localhost; Initial Catalog = MajorProject; Integrated Security= SSPI";
    conn.Open();

    DataSet ds = new DataSet();
    SqlDataAdapter da = new SqlDataAdapter("SELECT memberreportid, typeofcrime, crdatetime, address, detail, incidentdate, incidenttime, property, victim, suspect from memberreport", conn);
    da.Fill(ds);

    GWCase.DataSource = ds;
    GWCase.DataBind();

    conn.Close();

    ddlpid1.Visible = false;
    ddlpid2.Visible = false;
    ddlpid3.Visible = false;
    ddlpid4.Visible = false;
    ddlpid5.Visible = false;
    ddlpid6.Visible = false;
    ddlpid7.Visible = false;
    ddlpid8.Visible = false;
    ddlpid9.Visible = false;
    ddlpid10.Visible = false;
}

我试图改变我的

EventArgs to GridViewRowEventArgs.

我运行了代码并且它没有工作，实际上我的gridview消失了。我把它改回原来的eventargs但是gridview仍然消失了。

这是我的gridview的源代码

<asp:GridView ID="GWCase" runat="server" BackColor="#CCCCCC" BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4" CellSpacing="2" ForeColor="Black" Width="100%" AutoGenerateSelectButton="True" OnSelectedIndexChanged="GWCase_SelectedIndexChanged">
    <FooterStyle BackColor="#CCCCCC" />
    <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" />
    <RowStyle BackColor="White" />
    <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
    <SortedAscendingCellStyle BackColor="#F1F1F1" />
    <SortedAscendingHeaderStyle BackColor="#808080" />
    <SortedDescendingCellStyle BackColor="#CAC9C9" />
    <SortedDescendingHeaderStyle BackColor="#383838" />
</asp:GridView>

似乎通过更改EventArgs会导致整个gridview失败。我删除了我的aspx页面并重新创建并复制相同的代码，gridview仍然消失。

Answer 1

如果您想要更好地控制哪些列呈现给GridView，那么您可以使用Columns的{{1}}属性，如下所示：

GridView

注意：不是按<asp:GridView ID="GWCase" runat="server" BackColor="#CCCCCC" BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4" CellSpacing="2" ForeColor="Black" Width="100%" AutoGenerateSelectButton="True" OnSelectedIndexChanged="GWCase_SelectedIndexChanged"> <FooterStyle BackColor="#CCCCCC" /> <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" /> <PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" /> <RowStyle BackColor="White" /> <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" /> <SortedAscendingCellStyle BackColor="#F1F1F1" /> <SortedAscendingHeaderStyle BackColor="#808080" /> <SortedDescendingCellStyle BackColor="#CAC9C9" /> <SortedDescendingHeaderStyle BackColor="#383838" /> <Columns> <asp:BoundField datafield="CustomerID" headertext="Customer ID"/> <asp:BoundField datafield="CompanyName" headertext="Company Name"/> <asp:BoundField datafield="Address" headertext="Address"/> <asp:BoundField datafield="City" headertext="City"/> <asp:BoundField datafield="PostalCode" headertext="Postal Code"/> <asp:BoundField datafield="Country" headertext="Country"/> </Columns> </asp:GridView>语法隐藏列，而是不要将该列定义为绑定到GWCase.Columns[7].Visible = false;部分中的GridView。

编辑一些gridview rowupdating后，为什么我的gridview会消失

1 个答案: