How to add Image in the DataGridView or ListView Column, VB.NET

How to add Image in the DataGridView or ListView Column, VB.NET   Some time you have to display different images in the datagrid view based on column value. The simplest and fast performing way to achive this with datagridview, you add one Image column in the datatable and bind this datatable into the datagridview. For ListView Control, you add one Image column listview item and add this item into into the listview control   NameSpace Imports System.Text Imports System.IO   Source Code   'Display Image column in the first column in the datagridview Private Function BindDataGrid() As Integer   Dim rowCount As Integer Dim dsCustomer As New DataSet 'Get related data from database dsCustomer = GetAllCustomerData()   Try   Dim custTable As DataTable = dsCustomer.Tables(0) Dim col As DataColumn col = New DataColumn("Image", GetType(System.Drawing.Image)) custTable.Columns.Add(col) col.SetOrdinal(0) 'This line will add image column in '0' place   'ImageList1 is ImageList control defined in the design time and add desired image (Design time) in the Imagelist Control, For rowCount = 0 To custTable.Rows.Count - 1 If custTable.Rows(rowCount)("Dept").ToString() = "Finance" Then    custTable.Rows(rowCount)("Image") = ImageList1.Images("ImageName1") ElseIf custTable.Rows(rowCount)("Dept").ToString() = "Sales" Then    custTable.Rows(rowCount)("Image") = ImageList1.Images("ImageName2") Else    custTable.Rows(rowCount)("Image") = ImageList1.Images("ImageName3") End If Next      DataGridView1.DataSource = custTable    DataGridView1.Columns(0).Width = "20"      Return custTable.Rows.Count   Catch ex As Exception     Throw ex End Try 　 End Function   Note:  Another way to add Image in the ImageList Object at runtime          ImageList.Images.Add(Bitmap.FromFile("../Icons/Image1.ico"))   'Display Image column in the first column in the listview control Private Function BindListView() As Integer   Dim rowCount As Integer Dim dsCustomer As New DataSet 'Get related data from database dsCustomer = GetAllCustomerData()   Try   'Clear all the previous data if any, to overcome from binding duplicate data ListView1.Clear() ' Set the view to show details. This is for to display all the rows and columns ListView1.View = View.Details   'Design time add desired image in the Imagelist Control, ImageList1 is ImageList control defined in the design time ListView1.SmallImageList = ImageList1   'Add columns, ListView1.Columns.Add("Cust_Name", -2, HorizontalAlignment.Left) ListView1.Columns.Add("Cust_Address", -2, HorizontalAlignment.Right)   Dim item As New ListViewItem Dim custTable As DataTable = dsCustomer.Tables(0)   For rowCount = 0 To custTable.Rows.Count - 1 If custTable.Rows(rowCount)("Dept").ToString() = "Finance" Then     item = New ListViewItem(custTable.Rows(rowCount)(0).ToString(), 0) 'Image1 ElseIf custTable.Rows(rowCount)("Dept").ToString() = "Sales" Then     item = New ListViewItem(custTable.Rows(rowCount)(0).ToString(), 1) 'Image2 Else 'Other Dept      item = New ListViewItem(custTable.Rows(rowCount)(0).ToString(), 2) 'Image3 End If        item.SubItems.Add(custTable.Rows(rowCount)(0).ToString())      item.SubItems.Add(custTable.Rows(rowCount)(1).ToString())       ListView1.Items.Add(item) Next   Return custTable.Rows.Count   Catch ex As Exception      Throw ex ' Handle Exception here End Try   End Function   Note:   'Another way to add Image in the custTable Row at runtime            custTable.Rows(rowCount)("Image") = New System.Drawing.Bitmap ("../Icons/Image1.ico")

ListView Control De-select it selected value when click on other controls in .NET

ListView Control De-select it selected value when click on other controls in .NET Following example tested with VB.NET Window Form, .NET Framework 2.0 and IE 6.0 Problem: Load listview control Select some rows from listview Now select some other controls in the form All listview selected rows are de-selected Solution: Select your listview control on lost focus of listview event Private Sub ListView1_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListView1.LostFocus ListView1.Select() End Sub Note: Here the simple way to select/Unselect listview control programatically 'Select Items from ListView Control ListView1.Items(0).Selected = True ListView1.Select() 'Un-Select Items from ListView Control ListView1.Items(0).Selected = False ListView1.Select()

Confirm Popup message box with “Yes/No” button instead of “Ok/Cancel”

Confirm Popup message box with "Yes/No" button instead of "Ok/Cancel" In the javascript you have 'Confirm' function to popup message box and this message box comes with "Ok" and "Cancel" button but sometime you might have a requirement to display "Yes" and "No" button popup message box instead of "ok" and "Cancel". To achive this we have lots of work around. One of that is go and overrite window confirm function with vbscript. So you are still using JavaScript and Confirm function to display popup message box with "Yes" and "No" button and this fucntion will return "True" or "False" based on which button clicked. Copy and past following code in your aspx page before <Body> tag. This will give you popup message box on page load

<script language=javascript> /*@cc_on @*/ /*@if (@_win32 && @_jscript_version>=5) function window.confirm(str) { execScript('n = msgbox("'+str+'","4132")', "vbscript"); return(n == 6); } @end @*/ var r = confirm("Do you think you can do it?"); alert(r); </script> If you want this popup message box on click of button then call this fucntion on button click like below. <asp:Button runat="server" Text="Button" OnClientClick="confirm('Do you think you can do it?')" ></asp:Button> Message box WITH JavaScript Message box WITHOUT JavaScript

Error: ORA-30683: failure establishing connection to debugger

Error: ORA-30683: failure establishing connection to debugger or ORA-06512: at "SYS.DBMS_DEBUG_JDWP" In Oracle SQL Developer Tool If you are getting following error while debug your stored procedure then you can try following steps In the Oracle SQL Developer Tool Go to "Tool" Menu Go to "Preferences" Go to "Debugger" Check "Prompt for Debugger Host for Database Debugging" check box Click "OK" Now whenever you will be debug it will prompt "Debugger Host for Database Debugging" dialog box Type you local system IP Address Click "OK"

Execute Oracle Stored Procedure/Query FROM SQL Server

Execute Oracle Stored Procedure/Query FROM SQL Server Most of the time your project requirement to work with two databases, In some scenarios you want to execute one database stored procedure from another database. Here I am giving the example to execute Oracle stored procedure from SQL server database. To achieve this first you have to set up link from SQL server to Oracle How to link Oracle Database from SQL server http://blogs.techrepublic.com.com/datacenter/?p=133 http://support.microsoft.com/kb/280106 http://msdn.microsoft.com/en-us/library/aa259589(SQL.80).aspx To execute an Oracle Stored Procedure from SQL Server you can try the following: You can make a sample package named Project_Package with the procedure named TestProcedure: Package Header: PROCEDURE TestProcedure ( I_Parameter1 IN NUMBER, I_Parameter2 IN NUMBER, O_Parameter1 OUT NUMBER, O_Parameter2 OUT NUMBER ); Package Body: PROCEDURE TestProcedure ( I_Parameter1 IN NUMBER, I_Parameter2 IN NUMBER, O_Parameter1 OUT NUMBER, O_Parameter2 OUT NUMBER ) AS BEGIN O_Parameter1 := I_Parameter1 + 1; O_Parameter2 := I_Parameter2 + 1; END TestProcedure; Then we create a SQL Server Stored Procedure to Wrapp the Oracle Store Procedure Invocation, the T-SQL inside the procedure for this sample is the following: DECLARE @l_i_parameter1 INTEGER DECLARE @l_i_parameter2 INTEGER DECLARE @l_o_parameter1 INTEGER DECLARE @l_o_parameter2 INTEGER SET @l_i_parameter1 = 5 SET @l_i_parameter2 = 10 SET @l_o_parameter1 = 0 SET @l_o_parameter2 = 0 EXECUTE ( 'begin Project_Package.TestProcedure(?,?,?,?); end;', @l_i_parameter1, @l_i_parameter2, @l_o_parameter1 OUTPUT, @l_o_parameter2 OUTPUT) AT DBLINK_NAME; SELECT @l_o_parameter1, @l_o_parameter2 I Hope this sample illustrate the concept. Also I want to mention that this sample only works with simple output parameters, if you are trying to query for result sets I recommend trying the OPENQUERY statement instead. OR EXEC mySchema.myPackage.myProcedure@myRemoteDB( 'someParameter' ); Using OPENQUERY If exists (select * from master..sysservers where srvname = 'OracleDemo') exec sp_dropserver 'OracleDemo' go exec sp_addlinkedserver @server = N'OracleDemo', @srvproduct = N'', @provider = N'SQLOLEDB', @datasrc = @@servername go select * into #Ta from OPENQUERY(OracleDemo, 'exec yourSproc') select * from #Ta drop table #Ta go USING SP_EXECUTEESQL DECLARE @rc INT DECLARE @v_sql NVARCHAR(4000) DECLARE @vc_servername VARCHAR(100) DECLARE c_myservers CURSOR FOR SELECT servername FROM listservers WHERE active=1 FOR READ ONLY OPEN c_myservers FETCH NEXT FROM c_myservers INTO @vc_servername WHILE (@@FETCHSTATUS = 0 ) BEGIN SET @v_sql = N'SELECT name, id FROM ['+@vc_servername + '].dbname.joe.titles' EXEC @rc = sp_executesql @v_sql -- if @rc <> 0 --- etc... FETCH NEXT FROM c_myservers INTO @vc_servername END CLOSE c_myservers DEALLOCATE c_myservers COMPARISION Rather your choice is between: SELECT @sql = 'SELECT .... FROM ' + @server + 'catalog.schema.tbl' and SELECT @sql = 'SELECT ... FROM OPENQUERY(' + @server + ', ' + '''SELECT ... FROM catalog.schema.tbl'')' That is, accessing the table in four-part notation, or running a pass-through query.

How to send Array as an input parameter to Oracle SP using VB.NET

How to send Array as an input parameter to Oracle SP using .NET

Most of the project require to send huge parameter to oracle stored procedure that will be append in IN Clause in the SQL query. Basically you can send dynamically created inclause from the .NET code to oracle stored procedure.

There are multiple way to do this, you can send Array to SP and inside array, you can create concatated string and pass it to your SQL statement. BUT here if your inclause is going to be huge more then 4000 char then this approach wouldn't work, and string concatenation may hit the performance.

To over come with above two issues following approach will be the better approach, From the Array you can insert datainto the temp table and then fetch the data from temp table and create your complete SQL statement with inclause.

Please follow the steps given below for Demo  

Following solution tested with

1. Visual Studio 2005 with VB.NET
   
2. Oracle 10g
   
3. Microsoft Enterprise Library 3.0
   

It should work with higher and couple of lower version too.

Oracle 10g CODE

1)  Create one global type (string_table) as table type (this will be your temparory table)

CREATE OR REPLACE TYPE string_table AS TABLE OF varchar2(100)

2) Create one global package (GLOBAL_PACKAGE) to declare array Type for SP           

          CREATE OR REPLACE PACKAGE GLOBAL_PACKAGE AS

              TYPE REF_CUR IS REF CURSOR;

              TYPE CHARARRAY IS TABLE OF VARCHAR2(50) INDEX BY BINARY_INTEGER;

END GLOBAL_PACKAGE;

33) 3) Create one stored procedure (Data_Fetch)that will take input paremeter as Array and Out parameter as Ref Cursor.

CREATE OR REPLACE PROCEDURE Data_Fetch

     (

prmInClause           IN      Global_package.Chararray,

         prmOUTCursor          OUT     Global_package.REF_CUR

     )

  IS

  BEGIN

  Declare

tempTable  string_table := string_table(NULL);

  BEGIN

          FOR i IN 1..prmInClause.count LOOP

tempTable(i) := prminclause(i);   

tempTable.extend;

END LOOP;

 

   Open prmOUTCursor for

SELECT * FROM Employee where id in (select column_value from table(tempTable)); 

  END Data_Fetch;    

  END;

VB.NET Code

Give the reference to Microsoft Enterprosies Library, if you are using otherwise use simple Oracle command or other object.

Include NameSpace

Imports Microsoft.Practices.EnterpriseLibrary.Data

Imports Oracle.DataAccess.Client

Methods

''' <summary>

'''  This function will send String Array to the database stored procedure

'''  to create huge Inclause for sql query 

''' </summary>

Private Function ReturnDataSet() As DataSet

 'Define database connection string in the app.config and write the name below

Dim connectDB As Database = DatabaseFactory.CreateDatabase("DATABASE")

Dim ds As DataSet

Dim command As DbCommand

command = connectDB.GetStoredProcCommand("SP_NAME")

Dim objParam As OracleParameter() = New OracleParameter(1) {}

Dim arrInClause() As String = {"345345DSGFDG345", "SAFDS456546J"}

 'Input parameter in stored procedure type as table of varchar2(50)

objParam(0) = New OracleParameter("prmInClause", OracleDbType.Varchar2)

objParam(0).Direction = System.Data.ParameterDirection.Input

objParam(0).CollectionType = OracleCollectionType.PLSQLAssociativeArray

objParam(0).Value = arrInClause

 'Output parameter in stored procedure type as Ref Cursor

objParam(1) = New OracleParameter("prmCustomerOptions", OracleDbType.RefCursor)

objParam(1).Direction = System.Data.ParameterDirection.Output

objParam(1).CollectionType = OracleCollectionType.None

command.Parameters.AddRange(objParam)

ds = connectDB.ExecuteDataSet(command)

Return ds

End Function 

C# Code 

Include NameSpace

using Microsoft.Practices.EnterpriseLibrary.Data

using Oracle.DataAccess.Client

Method

 /// <summary>

/// This function will send String Array to the database stored procedure

/// to create huge Inclause for sql query

/// </summary>

private DataSet ReturnDataSet()

{ 

    //Define database connection string in the app.config and write the name below

    Database connectDB = DatabaseFactory.CreateDatabase("DATABASE");

    DataSet ds = default(DataSet);

    DbCommand command = default(DbCommand);

    command = connectDB.GetStoredProcCommand("SP_NAME");

    OracleParameter[] objParam = new OracleParameter[2];

    string[] arrInClause = { "345345DSGFDG345", "SAFDS456546J" };

     //Input parameter in stored procedure type as table of varchar2(50)

    objParam(0) = new OracleParameter("prmInClause", OracleDbType.Varchar2);

    objParam(0).Direction = System.Data.ParameterDirection.Input;

   objParam(0).CollectionType = OracleCollectionType.PLSQLAssociativeArray;

    objParam(0).Value = arrInClause;

     //Output parameter in stored procedure type as Ref Cursor

     objParam(1) = new OracleParameter("prmCustomerOptions",       OracleDbType.RefCursor);

    objParam(1).Direction = System.Data.ParameterDirection.Output;

    objParam(1).CollectionType = OracleCollectionType.None;

    command.Parameters.AddRange(objParam);

    ds = connectDB.ExecuteDataSet(command);

   return ds;

 }