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Temat: Gridview i Dropdownlist
Witam z problemem borykam się juz od kilku ładnych godzin pewnie dla większości z was to drobnostka ok przejdę do konkretówmam gridview a w nim dropdownlisty chciałbym aby po uruchomieniu akcji poszedł upddate do sql'a wstawiający wartości z dropdownlist.
Nieestety jakbym się do tego nie zabierał to updateowana jest albo jest pierwsza defaultowa wartość albo null.
Oto Kod
using System;
using System.Data;
using System.Collections;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Specialized;
using System.Text;
using System.Data.SqlClient;
using System.Data.Sql;
using System.Data.SqlTypes;
using System.Web.Mail;
using System.Net;
using System.IO;
public partial class wnios_view : System.Web.UI.Page
{
private SqlConnection mySQLconnection;
private SqlConnection conn;
private SqlConnection objInsert;
string kom;
protected void Page_Load(object sender, EventArgs e)
{
mySQLconnection = new SqlConnection();
mySQLconnection.ConnectionString = "Data Source=****;Initial Catalog=dbextest;Persist Security Info=True;User ID=****;Password=****";
// SQL Command object to pass the SQL query for retrieving the data from tbl_orders table.
SqlCommand mySqlCommand = new SqlCommand("select * from wnioski_prnv where idjednorg='test'", mySQLconnection);
SqlDataAdapter mySqlAdapter = new SqlDataAdapter(mySqlCommand);
DataSet myDataSet = new DataSet();
mySqlAdapter.Fill(myDataSet);
// GridView Data Control Bound to the DataSet filled with data retrieved from tbl_orders.
dg.DataSource = myDataSet;
dg.DataBind();
if (!Page.IsPostBack)
{
Populate1();
}
}
public void Populate1()
{
mySQLconnection = new SqlConnection();
mySQLconnection.ConnectionString = "Data Source=****;Initial Catalog=dbextest;Persist Security Info=True;User ID=admin;Password=****";
// Here new SQL query is pass to the SQL command object to get the data from tbl_order_status table.
SqlCommand mySqlCommand = new SqlCommand("select * from WNIOSKI_PRNV_STAT where id=1", mySQLconnection);
SqlDataAdapter mySqlAdapter = new SqlDataAdapter(mySqlCommand);
DataSet myDataSet = new DataSet();
mySqlAdapter.Fill(myDataSet);
// DropDownList Control Object Created to bind the data dynamically with each nested DropDownlist control placed inside the template column of the GridView Control.
DropDownList drdList;
// foreach loop is used to loop through each row of GridView Control.
foreach (GridViewRow grdRow in dg.Rows)
{
// Nested DropDownList Control reference is passed to the DrdList object. This will allow you access the properties of dropdownlist placed inside the GridView Template column.
drdList = (DropDownList)(dg.Rows[grdRow.RowIndex].Cells[5].FindControl("DropDownList1"));
// DataBinding of nested DropDownList Control for each row of GridView Control.
drdList.DataSource = myDataSet;
drdList.DataValueField = "status";
drdList.DataTextField = "status";
drdList.DataBind();
}
}
protected void aktual(object sender, EventArgs e)
{
// string variable to store the connection string
// defined in appsettings section of web.config file.
string connStr = ConfigurationManager.ConnectionStrings["dbextestConnectionString"].ConnectionString;
// object created for SqlConnection Class.
SqlConnection mySQLconnection = new SqlConnection(connStr);
// if condition that can be used to check the sql connection
// whether it is already open or not.
if (mySQLconnection.State == ConnectionState.Closed)
{
mySQLconnection.Open();
}
// Sql Command Object
SqlCommand mySqlCommand;
DropDownList drdList;
foreach (GridViewRow row in dg.Rows)
{
//Pętla po wszystkich rekordach Griudview
drdList = (DropDownList)(dg.Rows[row.RowIndex].Cells[5].FindControl("DropDownList1"));
mySqlCommand = new SqlCommand("update dbo.WNIOSKI_PRNV set data_akc= @data, akceptacja=@status, uwagi_odp='<p>' where ID_wniosku = @id", mySQLconnection);
mySqlCommand.Parameters.AddWithValue("@usrname", User.Identity.Name);
mySqlCommand.Parameters.AddWithValue("@data", DateTime.Now.ToString());
// SQL command input parameter to set the new value for order_status_id
mySqlCommand.Parameters.Add("@status", drdList.SelectedValue);
// SQL command input parameter as order_id whose corresponding value for order_status_id is to be set
mySqlCommand.Parameters.Add("@id", dg.DataKeys[row.RowIndex]["id_wniosku"]);
// Execute the SQL query to update the tbl_orders
mySqlCommand.ExecuteNonQuery();
}
// if condition that can be used to check the sql connection
// if it is open then close it.
if (mySQLconnection.State == ConnectionState.Open)
{
mySQLconnection.Close();
}
dg.DataBind();
}
//[System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
//public static string[] GetCompletionList(string prefixText, int count, string contextKey)
//{
// return default(string[]);
//}
//private string HttpContent(string url)
//{
// WebRequest objRequest = System.Net.HttpWebRequest.Create(url);
// StreamReader sr = new StreamReader(objRequest.GetResponse().GetResponseStream());
// string result = sr.ReadToEnd();
// sr.Close();
// return result;
//}
public void Signout_Click(Object sender, EventArgs e)
{
FormsAuthentication.SignOut();
Response.Redirect(@"~\wnios_view.aspx");
}
}Szymon Kmiecik edytował(a) ten post dnia 23.05.11 o godzinie 07:09
