Question

我正在使用C＃和MS SQL开发消息墙，到目前为止，我能够使用转发器发布帖子并检索它们，现在我需要在每个转发器文本框的评论部分中发表评论element，为此我分配了一个post id来关联两个表。

问题在于我如何从每个转发器元素中检索post id，因此当我对comments表进行插入时，我可以将其包含在内，然后将所有内容一起检索。

这是我的相关代码：

public void postear()
{
    string emailcc = Session["EMAIL"].ToString();
    string user_id = Session["ID"].ToString();
    string usrnom = Session["NOMBRE"].ToString();
    string usrfoto = Session["FOTO_URL"].ToString();

    string post_contenido = txtpublica.Text.ToString();
    var post_fecha = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");

    using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConexionBD"].ConnectionString))
    {
        using (SqlCommand cmd = new SqlCommand())
        {
            cmd.CommandType = CommandType.Text;
            cmd.CommandText = (@"INSERT INTO MIEMBROS_Posts (POST_USER_ID, POST_CONTENIDO, POST_FECHA, POST_USER_NOMBRE, POST_USER_FOTO) VALUES ('"
            + user_id + "','" + post_contenido + "','" + post_fecha + "','" + usrnom + "','" + usrfoto + "');");
            cmd.Connection = conn;
            conn.Open();
            int rowsAffected = cmd.ExecuteNonQuery();
        }
    }
    txtpublica.Text = "";
    traerposts();
}



public void comentar()
{
    string emailcc = Session["EMAIL"].ToString();
    string user_id = Session["ID"].ToString();
    string usrnom = Session["NOMBRE"].ToString();
    string usrfoto = Session["FOTO_URL"].ToString();

 // This is the problem area 
    foreach (RepeaterItem item in Repeater_UsrPosts.Items)
    {
        Label lbluserID = (Label)item.FindControl("lbluserid");
        string userid_post = lbluserID.Text;
    }

    string buscaid = (string)Repeater_UsrPosts.Items[lblid].FindControl("lbluserid");

    string COMM_contenido = txtpublica.Text.ToString();
    var COMM_fecha = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");


    using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConexionBD"].ConnectionString))
    {
        using (SqlCommand cmd = new SqlCommand())
        {

            cmd.CommandType = CommandType.Text;
            cmd.CommandText = (@"INSERT INTO MIEMBROS_Comments (COMM_USER_ID, COMM_CONTENIDO, COMM_FECHA, COMM_USER_NOMBRE, COMM_USER_FOTO, COMM_POST_ID) VALUES ('"
            + user_id + "','" + COMM_contenido + "','" + COMM_fecha + "','" + usrnom + "','" + usrfoto + "','" + userid_post + "');");
            cmd.Connection = conn;
            conn.Open();
            int rowsAffected = cmd.ExecuteNonQuery();
        }
    }
    txtpublica.Text = "";
    traerposts();
}

和aspx：

<asp:Repeater ID="Repeater_UsrPosts" runat="server">
    <ItemTemplate>

        <!-- Post -->
        <div class="post clearfix">
            <div class="user-block">

                <asp:Label ID="lblid" runat="server" Text="<%#Eval("post_user_id")%>"></asp:Label>
                <img alt="" src="<%#Eval("post_user_foto")%>" class="img-circle img-bordered-sm" />

                <span class="username">
                    <a href="#"><%#Eval("post_user_nombre") %></a>
                    <a href="#" class="pull-right btn-box-tool"><i class="fa fa-times"></i></a>
                </span>
                <span class="description"><%#Eval("post_fecha") %></span>
            </div>
            <!-- /.user-block -->

            <p>

                <%#Eval("post_contenido") %>
            </p>

            <form class="form-horizontal">
                <div class="form-group margin-bottom-none">
                    <div class="col-sm-9">
                        <input class="form-control input-sm" placeholder="Respuesta">
                    </div>
                    <div class="col-sm-3">
                        <button type="submit" class="btn btn-danger pull-right btn-block btn-sm">Enviar</button>
                    </div>
                </div>
            </form>
        </div>
        <!-- /.post -->
    </ItemTemplate>
</asp:Repeater>

Answer 1

一个非常快速的例子。这使用带CommandArgument的按钮。有了它，您可以发送CommandName和<asp:Repeater ID="Repeater1" runat="server"> <ItemTemplate> <%# Eval("myName") %> - <asp:Button ID="Button1" runat="server" Text="Button" OnCommand="Button1_Command" CommandName="myCommand" CommandArgument='<%# Eval("ID") %>' /> <br /> </ItemTemplate> </asp:Repeater>。在Repeater中，您可以将字段绑定到CommandArgument并在方法中再次读取它。

protected void Button1_Command(object sender, CommandEventArgs e)
{
    if (e.CommandName == "myCommand")
    {
        Label1.Text = e.CommandArgument.ToString();
    }
}

背后的代码

<form class="form-horizontal">

请勿忘记删除这些TableView代码。

从Repeater获取ID

1 个答案: