By: Issac in VB.net Tutorials on 2009-01-31
To embed message in Excel spread sheet we can use data validation input messages once we select the cell it will display the message, we can use .net to set those data validation input. Let's see the source code for it.
Imports Excel = Microsoft.Office.Interop.Excel Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles Button1.Click Dim xlApp As Excel.Application Dim xlWorkBook As Excel.Workbook Dim xlWorkSheet As Excel.Worksheet Dim misValue As Object = System.Reflection.Missing.Value Dim rangeCells As Excel.Range xlApp = New Excel.ApplicationClass xlWorkBook = xlApp.Workbooks.Add(misValue) xlWorkSheet = xlWorkBook.Sheets("sheet1") xlWorkSheet.Range("B5", "D5").Validation.Add( _ Type:=Excel.XlDVType.xlValidateInputOnly, _ AlertStyle:=Excel.XlDVAlertStyle.xlValidAlertStop, _ Operator:=Excel.XlFormatConditionOperator.xlBetween) xlWorkSheet.Range("B5", "D5").Validation.IgnoreBlank = True xlWorkSheet.Range("B5", "B5").FormulaR1C1 = "Click Here " + _ "to see Notes" xlWorkSheet.Range("B5", "D5").Validation.InputTitle = _ "vb.net-informations.com" xlWorkSheet.Range("B5", "D5").Validation.ErrorTitle = "Error in Title" xlWorkSheet.Range("B5", "D5").Validation.InputMessage = "Here is " + _ " the notes embeded - you can enter 255 characters maximum in notes " xlWorkSheet.Range("B5", "D5").Validation.ErrorMessage = "Error in Notes" xlWorkSheet.Range("B5", "D5").Validation.ShowInput = True xlWorkSheet.Range("B5", "D5").Validation.ShowError = True xlWorkSheet.SaveAs("C:\vbexcel.xlsx") xlWorkBook.Close() xlApp.Quit() releaseObject(xlApp) releaseObject(xlWorkBook) releaseObject(xlWorkSheet) MsgBox ("File created!") End Sub Private Sub releaseObject(ByVal obj As Object) Try System.Runtime.InteropServices.Marshal.ReleaseComObject(obj) obj = Nothing Catch ex As Exception obj = Nothing Finally GC.Collect() End Try End Sub End Class
When you execute this source code you can find Input message in an Excel Cell.
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