Comments by A C swathi

A C swathi 7-Feb-13 22:29pm View

i have just tried this in a local application.This pgm is to bind the value of installed date to textbox.Below given the code sample.

using System;
using System.Collections.Generic;
using System.Linq;

using System.Text;
using System.Windows;
using System.Windows.Controls;

using System.Windows.Data;
using System.Windows.Documents;

using System.Windows.Input;
using System.Windows.Media;

using System.Windows.Media.Imaging;
using System.Windows.Navigation;

using System.Windows.Shapes;
using System.Data;
using System.Data.SqlClient;

using System.Xml;
using System.IO;
namespace WpfApplication1{ ///

/// Interaction logic for MainWindow.xaml ///

public partial class MainWindow : Window
{
public MainWindow()

{
InitializeComponent();
try
{

SqlConnection con = new SqlConnection("Data Source=NIP007\\SQLEXPRESS;Initial Catalog=test;User ID=sa;Password=nest123@!");

con.Open();

string query = "SELECT [partinfo].query('.//InstalledDate').value('.','VARCHAR(MAX)')FROM [test]";

SqlCommand cmd = new SqlCommand(query, con);

// StringBuilder builder=new StringBuilder();

// string PartInfo=string.Empty;

SqlDataReader dr = cmd.ExecuteReader();

while (dr.Read())

{

string str5 =dr.ToString();

if (!string.IsNullOrEmpty(str5))

{
textBox1.Text=str5;

}
}

}
catch(Exception ex)
{

}
}
}}

but its showing exception as i said earlier..

A C swathi 7-Feb-13 7:04am View

sorry..i jst tried whether the value is passing by putting breakpoint.Then its k.bt when running its showing an exception .which is "Cannot find either column "PartInfo" or the user-defined function or aggregate "PartInfo.query", or the name is ambiguous".where partinfo is the column name,that column content is in the form of xmlstring.and i have to get the value of installed date from this xml string and the partinfo is one of the column present in a table called test.how can i solve the exception..i used the first query that u have given
.

A C swathi 7-Feb-13 5:31am View

Deleted

Thank u..its working now..

A C swathi 7-Feb-13 4:27am View

yes.i meant that section.i have to use this query in a pgm.in that cant write the column xmldatacolumn directly.coz which is now present in xmlstring..at that time what i can do..Plz help me.

A C swathi 7-Feb-13 1:36am View

Thank u..bt the pblm is still existing.i am getting my table as xmlstring in pgm so cant specify the columns inside that in a select query..i just want the values inside the columns ,i cant specify the value directly in query.Because the value will be changed in xml string depending on the user.i have to fetch the datas based on what he is passing..There may be thousands of user so how can i do this..Is there any solution for that..Thanks in advance..

A C swathi 6-Feb-13 6:05am View

Thank u..I tried this.But I want to search whole rows based on the value in column and have to bind the rows satisfying this conditon(whose installed date is same as what we type for search in UI).But i cant do it with this code.Because i cant select directly the column because which is now present as an xml string..plz tell me a solution for that..

A C swathi 23-Jan-13 4:14am View

Thanks.But I have to use the batch select query not the join query.whether i have to two datasets and two dataadpters for retrieve datas from two tables.and whether i have to use datarelation here..please reply..

A C swathi 23-Jan-13 4:13am View

Thanks.I have to use batch select query to retrive datas from two tables.ya i want to show the six columns in a single datagrid.join query cant be used here.Here i am testing the working of batch select query,that should be include in project.Thats why.whether i have to two datasets and two dataadpters for retrieve datas from two tables.and whether i have to use datarelation here..please reply..

A C swathi 23-Jan-13 2:27am View

thanks..its working

A C swathi 22-Jan-13 1:38am View

Deleted

Afterall I am a fresher..these api shows only the methods and properties.no sample code.Then how can i implement that..

A C swathi 22-Jan-13 0:45am View

Thanks..can u please explain with an example.

A C swathi 19-Dec-12 4:38am View

Thank u...its working now...

A C swathi 19-Dec-12 1:03am View

Thanks....i tried it...but no updation is occuring in datagrid after deletion..is there any method for selecting a rowindex and based on that we can perform delete operation.like dataGridView1.Rows.RemoveAt(dataGridView1.CurrentRow.Index)in windows application

A C swathi 18-Dec-12 22:45pm View

This is my program...could you please help me to delete a selected row from grid after delete operation in this program...

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Data.SqlClient;
using System.Data;

namespace WpfApplication1
{
///

/// Interaction logic for MainWindow.xaml
///

public partial class MainWindow : Window
{

public MainWindow()
{
InitializeComponent();
bindgrid();

}
private void bindgrid()
{

SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=book;User ID=sa;Password=nest123@!");
con.Open();
string cmd1 = "select * from book2";
SqlCommand cmd = new SqlCommand(cmd1, con);
SqlDataAdapter sda = new SqlDataAdapter(cmd);
cmd.ExecuteNonQuery();

DataTable dt = new DataTable("book2");

sda.Fill(dt);
dataGrid1.ItemsSource = dt.DefaultView;

}
//insert
private void button1_Click(object sender, RoutedEventArgs e)
{
DataTable dt=new DataTable();
SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=book;User ID=sa;Password=nest123@!");
con.Open();
try
{
object item=dataGrid1.SelectedItem;
string col1 = (dataGrid1.SelectedCells[0].Column.GetCellContent(item) as TextBlock).Text;
string col2 = (dataGrid1.SelectedCells[1].Column.GetCellContent(item) as TextBlock).Text;
string col3 = (dataGrid1.SelectedCells[2].Column.GetCellContent(item) as TextBlock).Text;
string col4 = (dataGrid1.SelectedCells[3].Column.GetCellContent(item) as TextBlock).Text;
string p = "insert into book2 values('" + col1 + "','"+col2+"','"+col3+"','"+col4+"')";
SqlCommand cmd = new SqlCommand(p, con);

cmd.ExecuteNonQuery();
}
catch (SqlException e1)
{
MessageBox.Show(e1.Message.ToString());
}
MessageBox.Show("value inserted");
dataGrid1.Items.Refresh();
con.Close();
}
//update
private void button2_Click(object sender, RoutedEventArgs e)
{
SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=book;User ID=sa;Password=nest123@!");

con.Open();
try
{

object item = dataGrid1.SelectedItem;
string bookid = (dataGrid1.SelectedCells[0].Column.GetCellContent(item) as TextBlock).Text;
string name = (dataGrid1.SelectedCells[1].Column.GetCellContent(item) as TextBlock).Text;
string author = (dataGrid1.SelectedCells[2].Column.GetCellContent(item) as TextBlock).Text;
string prize = (dataGrid1.SelectedCells[3].Column.GetCellContent(item) as TextBlock).Text;

SqlCommand cmd = new SqlCommand("update book2 set name=@name,author=@author,prize=@prize where bookid=@bookid", con);
cmd.Parameters.AddWithValue("@bookid", SqlDbType.NVarChar).Value = bookid;
cmd.Parameters.AddWithValue("@name", SqlDbType.NVarChar).Value = name;
cmd.Parameters.AddWithValue("@author", SqlDbType.NVarChar).Value = author;
cmd.Parameters.AddWithValue("@prize", SqlDbType.NVarChar).Value = prize;

A C swathi 18-Dec-12 12:15pm View

Thanks.I tried it..but the selected row is not deleting from datagrid after performing the delete operations.Is there any solution for that..

A C swathi 18-Dec-12 5:29am View

Thanks..i have applied this.But still it is not working ...there is no change in the datagrid

Comments by A C swathi (Top 16 by date)