Search DaniWeb - null-reference

Null reference exception mvc 4 8 Years Ago by iamchamith There is a null reference exception occurred in MVC 4 application as below [click here to view exception](http://i.stack.imgur.com/ypBet.png) but values are came to the variable. there for no point to happen null reference exception. why is that. good luck :) null reference exception was unhandled 13 Years Ago by annesil …(inc).Item(0)-error msg appeared here sayin null reference evception was unhandled. Object reference not set to an instance of an object… Null reference exception 13 Years Ago by xanawa … sender, EventArgs e) { if (dgvMessages.CurrentRow == null) { return; } try { int select = dgvMessages.CurrentRow.Index; //NULL REFERENCE EXCEPTION DateTime dateTimeMessage = Convert.ToDateTime(dgvMessages.Rows… Null Reference and Active X exceptions 18 Years Ago by Drowzee …] private AxLEADLib.AxLEAD axLEAD1=new AxLEADLib.AxLEAD(); [/code] Removes the Null reference exception, but I then get an 'InvalidActiveXStateException' occuring in the… Re: Null Reference and Active X exceptions 18 Years Ago by Drowzee Actually, it wasn't. Now, if I delete the project folder and extract the full project again, the same Null reference (or active X) exception occurs when I don't make any changes to the files. Null Reference Mystery 16 Years Ago by Chris147 Hi All, Does anyone know why I'm getting a 'Null Reference' error when I try to use a FolderBrowser? I have … null reference error 13 Years Ago by moone009 …' is used before it has been assigned a value. A null reference exception could result at runtime. does anyone know why I… VB.NET - Null Reference Exception was unhandled 13 Years Ago by STP_Captain_Slo … this time i am getting the following error: Null Reference Exception was unhandled Object reference not set to an instance of an object… Re: VB.NET - Null Reference Exception was unhandled 13 Years Ago by STP_Captain_Slo … i will use, but i am still getting: Null Reference Exception was unhandled Object reference not set to an instance of an object… JaggedArray Null Reference Exception 12 Years Ago by ariez88 …) { JaggedArray[jaggedVar][i] = new PossibleValues[i]; } } jaggedVar++; But this gives null reference exception at JaggedArray[jaggedVar][i] = new PossibleValues[i]; I searched… over the internet and came to know that JaggedArray remains null hence values cannot be assigned this way.How to resolve… Re: VB.NET - Null Reference Exception was unhandled 10 Years Ago by rathideva ….Red .Top = r.Next(PictureBox1.Top, PictureBox1.Bottom - 10) //error null reference exception was handeled// .Left = r.Next(PictureBox1.Left, PictureBox1.Right… Getting Null reference 11 Years Ago by androidz HI i have this error null reference i don't know why Imports System.Data.SqlClient Imports … Re: Null reference exception mvc 4 8 Years Ago by hericles … doesn't have a value for the name property. The null pointer exception really only means one thing: the value it… refers to is null. Step through the loop in the debugger, wait for it… Re: Null Reference and Active X exceptions 18 Years Ago by Drowzee … unable to avoid it because I am correctly addressing the Null System Reference issue? Re: Null reference in array 15 Years Ago by Ramy Mahrous int value type.. TextBox reference type you should [B]new [/B]it... Re: Null Reference Exception was unhandled 12 Years Ago by Momerath … (in line 15), indexes 1, 2, and 3 are all null, thus there is no courseName.Name and the error. Use… Null Reference Exception was unhandled 12 Years Ago by infinitus …"); writer.WriteElementString("courseName", coursename.Name); //<---- Object reference not set to an instance of an object writer.WriteEndElement… Null Reference Expression was Unhandled 11 Years Ago by dinesh012 … it will display the bellow message NullRefaranceExprasion was Unhandle Object reference not set to an instance of an object. this is… Null reference in array 15 Years Ago by ddanbe …. elements[0,0].Name="foo";) I get a Null ref exeption. When I do [B]elements[r, c] = new… Re: VB.NET - Null Reference Exception was unhandled 13 Years Ago by codeorder … it to error with: [ICODE][COLOR="Red"]Object reference not set to an instance of an object.[/COLOR][/ICODE… Re: Getting Null reference 11 Years Ago by androidz … name called Server, this will hold the data for future reference especially during handling the connections.Now on my next step… Re: Getting Null reference 11 Years Ago by hericles When you debug it what line is causing the null error? If is the line strReturn = ConfigurationManager.ConnectionStrings("YourConnectionName").ConnectionString the error will be because in the app.config the connection string is named "MyConnName" not "YourConnectionName". Re: Getting Null reference 11 Years Ago by Maligui … name of the default string to see if that returns null? DataAccess.GetConnectionString("Myconnname") It looks like you are… Re: null reference exception was unhandled 13 Years Ago by annesil im using microsoft access 2007 for my database and microsoft visual studio 2008...i already upgraded the visual studio with SP1..plssssssss helpppp! Re: null reference exception was unhandled 13 Years Ago by Netcode you can enter these lines of code in areas where you have such errors. you have to convert the rows in a datatable to type 'string before' you can place them in textboxes. [CODE] For Each myDataRow As DataRow In objdatatable.Rows TextBox1.Text = Convert.ToString(myDataRow("item1")) TextBox2.Text = … Re: Null reference exception 13 Years Ago by kvprajapati Try, [code] dataGridView1.CurrentRow.Cells[1].Value.ToString() ; [/code] Re: Null reference exception 13 Years Ago by Mitja Bonca This is the even of some control. This will fire a always file on the form load, becuas the dataGridView always selects the [0,0] based sell - this is upper, left cell. And when it does, the event fires up. What you can do, to prevent executing the code on a form load (or when ever you do NOT want it to be fired), you can set a flab; boolean flag. … Re: Null reference exception 13 Years Ago by xanawa i am sorry i made a mistake i am not calling it in the form_load.. but still it is not working. Re: Null reference exception 13 Years Ago by Mitja Bonca try this code: [CODE]int index = dataGridView1.CurrentCell.RowIndex;[/CODE] Re: Null reference exception 13 Years Ago by xanawa [QUOTE=Mitja Bonca;1546062]try this code: [CODE]int index = dataGridView1.CurrentCell.RowIndex;[/CODE][/QUOTE] didnt work either.. is it maybe because i am filling the data in the grid view frm the code on form load?