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