в 15:31, 26 мая 2010

2010-05-26T15:31:35Z

Admin: 1 версия

2010-05-26T12:12:22Z

1 версия

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==DataView.Find==

<source lang="csharp">

using System;
using System.Data;
using System.Data.SqlClient;
class FindingDataRowViews {
public static void Main() {
SqlConnection mySqlConnection =
new SqlConnection(
"server=localhost;database=Northwind;uid=sa;pwd=sa"
);
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT CustomerID, CompanyName, Country " +
"FROM Customers";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
mySqlDataAdapter.Fill(myDataSet, "Customers");
mySqlConnection.Close();
DataTable customersDT = myDataSet.Tables["Customers"];
string filterExpression = "Country = "UK"";
string sortExpression = "CustomerID";
DataViewRowState rowStateFilter = DataViewRowState.OriginalRows;
DataView customersDV = new DataView();
customersDV.Table = customersDT;
customersDV.RowFilter = filterExpression;
customersDV.Sort = sortExpression;
customersDV.RowStateFilter = rowStateFilter;
foreach (DataRowView myDataRowView in customersDV) {
for (int count = 0; count < customersDV.Table.Columns.Count; count++) {
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
int index = customersDV.Find("BSBEV");
Console.WriteLine("BSBEV found at index " + index + "\n");
DataRowView[] customersDRVs = customersDV.FindRows("BSBEV");
foreach (DataRowView myDataRowView in customersDRVs) {
for (int count = 0; count < customersDV.Table.Columns.Count; count++) {
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
}
}

</source>

==DataView.FindRows==

<source lang="csharp">

using System;
using System.Data;
using System.Data.SqlClient;
class FindingDataRowViews {
public static void Main() {
SqlConnection mySqlConnection =
new SqlConnection(
"server=localhost;database=Northwind;uid=sa;pwd=sa"
);
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT CustomerID, CompanyName, Country " +
"FROM Customers";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
mySqlDataAdapter.Fill(myDataSet, "Customers");
mySqlConnection.Close();
DataTable customersDT = myDataSet.Tables["Customers"];
string filterExpression = "Country = "UK"";
string sortExpression = "CustomerID";
DataViewRowState rowStateFilter = DataViewRowState.OriginalRows;
DataView customersDV = new DataView();
customersDV.Table = customersDT;
customersDV.RowFilter = filterExpression;
customersDV.Sort = sortExpression;
customersDV.RowStateFilter = rowStateFilter;
foreach (DataRowView myDataRowView in customersDV) {
for (int count = 0; count < customersDV.Table.Columns.Count; count++) {
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
int index = customersDV.Find("BSBEV");
Console.WriteLine("BSBEV found at index " + index + "\n");
DataRowView[] customersDRVs = customersDV.FindRows("BSBEV");
foreach (DataRowView myDataRowView in customersDRVs) {
for (int count = 0; count < customersDV.Table.Columns.Count; count++) {
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
}
}

</source>

==DataView.RowFilter==

<source lang="csharp">

using System;
using System.Data;
using System.Data.SqlClient;
class FindingDataRowViews
{
public static void Main()
{
SqlConnection mySqlConnection =new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT ID, FirstName, LastName " +
"FROM Employee";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
mySqlDataAdapter.Fill(myDataSet, "Employee");
mySqlConnection.Close();
DataTable employeeDT = myDataSet.Tables["Employee"];
string filterExpression = "ID = 9";
string sortExpression = "ID";
DataViewRowState rowStateFilter = DataViewRowState.OriginalRows;
DataView employeeDV = new DataView();
employeeDV.Table = employeeDT;
employeeDV.RowFilter = filterExpression;
employeeDV.Sort = sortExpression;
employeeDV.RowStateFilter = rowStateFilter;
foreach (DataRowView myDataRowView in employeeDV)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
int index = employeeDV.Find("8");
Console.WriteLine("8 found at index " + index + "\n");
DataRowView[] employeeDRVs = employeeDV.FindRows("8");
foreach (DataRowView myDataRowView in employeeDRVs)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
}
}

</source>

==DataView.RowStateFilter==

<source lang="csharp">

using System;
using System.Data;
using System.Data.SqlClient;
class FindingDataRowViews
{
public static void Main()
{
SqlConnection mySqlConnection =new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT ID, FirstName, LastName " +
"FROM Employee";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
mySqlDataAdapter.Fill(myDataSet, "Employee");
mySqlConnection.Close();
DataTable employeeDT = myDataSet.Tables["Employee"];
string filterExpression = "ID = 9";
string sortExpression = "ID";
DataViewRowState rowStateFilter = DataViewRowState.OriginalRows;
DataView employeeDV = new DataView();
employeeDV.Table = employeeDT;
employeeDV.RowFilter = filterExpression;
employeeDV.Sort = sortExpression;
employeeDV.RowStateFilter = rowStateFilter;
foreach (DataRowView myDataRowView in employeeDV)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
int index = employeeDV.Find("8");
Console.WriteLine("8 found at index " + index + "\n");
DataRowView[] employeeDRVs = employeeDV.FindRows("8");
foreach (DataRowView myDataRowView in employeeDRVs)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
}
}

</source>

==DataView.Sort==

<source lang="csharp">

using System;
using System.Data;
using System.Data.SqlClient;
class FindingDataRowViews
{
public static void Main()
{
SqlConnection mySqlConnection =new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT ID, FirstName, LastName " +
"FROM Employee";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
mySqlDataAdapter.Fill(myDataSet, "Employee");
mySqlConnection.Close();
DataTable employeeDT = myDataSet.Tables["Employee"];
string filterExpression = "ID = 9";
string sortExpression = "ID";
DataViewRowState rowStateFilter = DataViewRowState.OriginalRows;
DataView employeeDV = new DataView();
employeeDV.Table = employeeDT;
employeeDV.RowFilter = filterExpression;
employeeDV.Sort = sortExpression;
employeeDV.RowStateFilter = rowStateFilter;
foreach (DataRowView myDataRowView in employeeDV)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
int index = employeeDV.Find("8");
Console.WriteLine("8 found at index " + index + "\n");
DataRowView[] employeeDRVs = employeeDV.FindRows("8");
foreach (DataRowView myDataRowView in employeeDRVs)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
}
}

</source>

==DataView.Table==

<source lang="csharp">

using System;
using System.Data;
using System.Data.SqlClient;
class FindingDataRowViews
{
public static void Main()
{
SqlConnection mySqlConnection =new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT ID, FirstName, LastName " +
"FROM Employee";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
mySqlDataAdapter.Fill(myDataSet, "Employee");
mySqlConnection.Close();
DataTable employeeDT = myDataSet.Tables["Employee"];
string filterExpression = "ID = 9";
string sortExpression = "ID";
DataViewRowState rowStateFilter = DataViewRowState.OriginalRows;
DataView employeeDV = new DataView();
employeeDV.Table = employeeDT;
employeeDV.RowFilter = filterExpression;
employeeDV.Sort = sortExpression;
employeeDV.RowStateFilter = rowStateFilter;
foreach (DataRowView myDataRowView in employeeDV)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
int index = employeeDV.Find("8");
Console.WriteLine("8 found at index " + index + "\n");
DataRowView[] employeeDRVs = employeeDV.FindRows("8");
foreach (DataRowView myDataRowView in employeeDRVs)
{
for (int count = 0; count < employeeDV.Table.Columns.Count; count++)
{
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
}
}

</source>

==DataView.Table.Columns==

<source lang="csharp">

using System;
using System.Data;
using System.Data.SqlClient;
class FindingDataRowViews {
public static void Main() {
SqlConnection mySqlConnection =
new SqlConnection(
"server=localhost;database=Northwind;uid=sa;pwd=sa"
);
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.rumandText =
"SELECT CustomerID, CompanyName, Country " +
"FROM Customers";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
mySqlDataAdapter.Fill(myDataSet, "Customers");
mySqlConnection.Close();
DataTable customersDT = myDataSet.Tables["Customers"];
string filterExpression = "Country = "UK"";
string sortExpression = "CustomerID";
DataViewRowState rowStateFilter = DataViewRowState.OriginalRows;
DataView customersDV = new DataView();
customersDV.Table = customersDT;
customersDV.RowFilter = filterExpression;
customersDV.Sort = sortExpression;
customersDV.RowStateFilter = rowStateFilter;
foreach (DataRowView myDataRowView in customersDV) {
for (int count = 0; count < customersDV.Table.Columns.Count; count++) {
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
int index = customersDV.Find("BSBEV");
Console.WriteLine("BSBEV found at index " + index + "\n");
DataRowView[] customersDRVs = customersDV.FindRows("BSBEV");
foreach (DataRowView myDataRowView in customersDRVs) {
for (int count = 0; count < customersDV.Table.Columns.Count; count++) {
Console.WriteLine(myDataRowView[count]);
}
Console.WriteLine("");
}
}
}

</source>

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в 15:31, 26 мая 2010

Admin: 1 версия