按下按钮后显示GridView

Question

我试图在按下按钮后显示GridView。这是我关于视图的代码：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource3">
    <Columns>
        <asp:BoundField DataField="Lounge No" HeaderText="Lounge No" InsertVisible="False" SortExpression="Lounge No" />
        <asp:BoundField DataField="Film Name" HeaderText="Film Name" SortExpression="Film Name" />
        <asp:BoundField DataField="Time" HeaderText="Time" SortExpression="Time" />
        <asp:BoundField DataField="Date" HeaderText="Date" SortExpression="Date" />
        <asp:BoundField DataField="Type_Description" HeaderText="Type_Description" SortExpression="Type_Description" />
    </Columns>
</asp:GridView>

这就是我在按钮的代码中所拥有的：

protected void Button1_Click(object sender, EventArgs e)
{
    SqlDataSource3.DataBind();
}

Answer 1

您可以做这样的事情。

<asp:GridView ID="GridView1" Visible="false" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource3">
<Columns>
    <asp:BoundField DataField="Lounge No" HeaderText="Lounge No" InsertVisible="False" SortExpression="Lounge No" />
    <asp:BoundField DataField="Film Name" HeaderText="Film Name" SortExpression="Film Name" />
    <asp:BoundField DataField="Time" HeaderText="Time" SortExpression="Time" />
    <asp:BoundField DataField="Date" HeaderText="Date" SortExpression="Date" />
    <asp:BoundField DataField="Type_Description" HeaderText="Type_Description" SortExpression="Type_Description" />
</Columns>

添加可见=" false"属性到GridView。

按钮的代码单击

protected void Button1_Click(object sender, EventArgs e)
{
      if (GridView1.Visible == false)
      {
            SqlDataSource3.DataBind();
            GridView1.Visible = true;
            Button1.Text = "Hide";
      }
      else
      {
           GridView1.Visible = false;
           Button1.Text = "Show";
      }
}