隱藏DataGridView列

Question

我在網站上顯示“網格視圖”，但我想隱藏“ PID”列，我嘗試
dataGridView1.Columns[0].Visible = false; 但是它不起作用，這是我的數據庫連接代碼：

protected void Page_Load(object sender, EventArgs e)
{
    try
    {
        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["SocialConnection"].ConnectionString);

        SqlCommand cmd = new SqlCommand("select PID , description As Post,U_Name As Name from Post ", conn);
        DataSet ds = new DataSet();
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        da.Fill(ds);
        GridView1.DataSource = ds;
        GridView1.DataBind();          
        conn.Close();
    }

標記：

 <asp:GridView ID="GridView2" runat="server" BackColor="White" 
        BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" 
        Width="1000px" PageIndex="2"  AllowPaging="True" > 
         <Columns>
            <asp:TemplateField>
            <ItemTemplate>
                <asp:Button ID="Buttonid" runat="server"  CommandName='<%# Bind("PID") %>' Text="Rate" OnClick="Button_rate_click"></asp:Button>    
            </ItemTemplate>
            </asp:TemplateField>

            <asp:ButtonField ButtonType="Link" CommandName="Reply" HeaderText="Reply" Text="Reply"  />
         </Columns>
    </asp:GridView>

Answer 1

您可以嘗試從onRowCreated事件中隱藏該列，因為它是自動生成的列。

將onRowCreated事件添加到您的GridView標記中：

 <asp:GridView OnRowCreated="gridView_OnRowCreated" ID="GridView2"
 runat="server" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" 
 Width="1000px" PageIndex="2"  AllowPaging="True" >

然后在代碼后面添加方法：

protected void gridView_OnRowCreated(object sender, GridViewRowEventArgs e)
{
    //You want to remove third column (column with index 2)
    if(e.Row.Cells.Count > 2)
       e.Row.Cells[2].Visible = false; // hides the first column
}

希望這可以幫助。