如何从gridview获取下拉更改事件的行ID和下拉值答案

【问题标题】：how to get row id and value of dropdown from gridview on drop change events如何从gridview获取下拉更改事件的行ID和下拉值
【发布时间】：2014-06-02 02:19:02
【问题描述】：

我正在使用存储过程在网格视图上绑定数据，网格视图中有下拉（状态），当用户更改下拉（值将被更改）时，它将更新数据库..

问题：现在我如何使用 j 查询获取特定行的 id 和下拉值。我想使用 Ajax 和 web 方法更新记录（客户端要求）

请帮忙

【问题讨论】：

您应该发布相关的标记和更改事件代码。

标签： c# jquery asp.net gridview

【解决方案1】：

var elmID = $("#DRopDown_ID").find("option:selected").attr('id')

【讨论】：

和 .val() 获取下拉菜单的值

【解决方案2】：

function ddlChanged(ddl)
{  
  var ddlValue = $(ddl).val();
  var tr = $(ddl).closest('tr');
}

在您的网格视图中

<asp:DropDownList id="ddlStatus" runat="server" onchange="ddlChanged(this)" />

【讨论】：

【解决方案3】：

 SqlConnection sqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["DbConnect"].ToString());

    SqlDataAdapter sqladp = new SqlDataAdapter();

    DataTable dt = new DataTable();

    DataTable dt1 = new DataTable();

    DataTable dt2 = new DataTable();


  protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            DataSet ds=new DataSet ();

            ds = ddlist("Select * from UserDetails");

            Grid_viewprofile.DataSource = ds;

            Grid_viewprofile.DataBind();

        }
    }

    protected void Grid_viewprofile_RowCommand(object sender, GridViewCommandEventArgs e) 

    {

        if (e.CommandName == "Close")    
        {   

        //    Panel1.Visible = false; 

        }  

        if (e.CommandName == "Move")       
        {

            GridViewRow gvRow = (GridViewRow)(((Button)e.CommandSource).NamingContainer);

            DropDownList lstuserName = (DropDownList)gvRow.FindControl("ddl_groub");

            Response.Write("Selected Value : " + lstuserName.SelectedValue + " " + "Selected Item : " + lstuserName.SelectedItem.Text);  



        }

    }  


    public  DataSet   ddlist(string Qry)

    {

        DataSet ds = new DataSet();

        SqlDataAdapter sqladp = new SqlDataAdapter(Qry, sqlcon);

        sqladp.Fill(ds);

        return ds;

    }

    protected void Grid_viewprofile_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            DropDownList  ddl = (DropDownList)e.Row.FindControl("ddl_groub");

            ddl.DataSource = ddlist("Select * from UserDetails");

            ddl.DataTextField = "UserName";

            ddl.DataValueField = "ID";

            ddl.DataBind();

            ddl.Items.Insert(0, new ListItem("--Select--", "0"));

        } 

    }
}

客户端

<asp:GridView ID="Grid_viewprofile" CellPadding="4" ForeColor="Black"  



        runat="server" AllowPaging="true" PageSize="1" 



    AutoGenerateColumns="false" onrowcommand="Grid_viewprofile_RowCommand" 

        onrowdatabound="Grid_viewprofile_RowDataBound">

    <Columns>

    <asp:BoundField DataField="ID" HeaderText="ID" /> 

<asp:BoundField DataField="UserName" HeaderText="UserName" /> 

     <asp:TemplateField HeaderText="Profile_Status">
    <ItemTemplate>
        <asp:DropDownList ID="ddl_groub" runat="server">

        </asp:DropDownList>



        <asp:Button ID="btn_move" runat="server" Text="Move to group"  CommandName="Move" />

        <asp:Button ID="btn_close" runat="server" Text="Close"  CommandName="Close"/>

    </ItemTemplate>

    </asp:TemplateField>

</Columns>

</asp:GridView>

【讨论】：