MVC :: HttpPostedFileBase Always Null?
Jun 19, 2010 I have my form created like this:
[Code]....
and then the Controller method:
[Code]....
The variable 'calendarUpload' is always null.
Similar Messages:
Getting Different Paths Using HttpPostedFileBase?
Feb 7, 2011See the following code. I'm uploading files, Yet i'm getting different results from difference browsers.
Firefox var path = "about.restaurant.jpg"
yet in ie6 path = "D:devxxxxxxxxxxxxxxxWebsiteimagesabout.restaurant.jpg"
foreach (string file in Request.Files)
[code]...
Execute HttpPostedFileBase.SaveAs Method?
Feb 18, 2010I've got an asp.net mvc application that uploads a file and stores them in one of the directories where the website is located.
My question is... When you execute HttpPostedFileBase.SaveAs() method saving it with the same name as an existing filename on the folder, does HttpPostedfileBase overwrite the file?
Cannot Implicitly Convert Type 'System.Web.HttpPostedFile' To 'System.Web.HttpPostedFileBase'?
Jun 18, 2010I have this method which does not build, it errors with the message:
Cannot implicitly convert type 'System.Web.HttpPostedFile' to 'System.Web.HttpPostedFileBase'
I really need this to be of type HttpPostedFileBase instead of HttpPostedFile, I have tried boxing and it does not work:
foreach (string inputTagName in HttpContext.Current.Request.Files)
{
HttpPostedFileBase filebase =HttpContext.Current.Request.Files[inputTagName];
if (filebase.ContentLength > 0)
{
if (filebase.ContentType.Contains("image/"))
{
SaveNonAutoExtractedThumbnails(doc, filebase);
}
}
}
Forms Data Controls :: Displaying A Null Or Empty Cell For A Null Datetime Database Value In Gridview?
Dec 6, 2010I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
SQL Server :: Inserting Null Value Into Foreign Key Table With Allow Null Enabled?
Oct 2, 2010I have 2 table Table A, Table B.
Table A - Parent Table
ID - Uniqueidentifier not null(PK)
Table B -Child Table
ID - uniqueidentifier null(FK, TableA)
I have a stored procedure to insert data into Table B, but when I tried to insert a null value into column ID of table B, this error came up:
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_tableB_tableA". The conflict occurred in database "database name", table "table A", column 'ID'.
The statement has been terminated.
The insert statement in asp.net is like so:
sqlcommand.parameter.add(New Sqlparameter("ID", Nothing))
I am guessing adding nothing to the null value column is the problem, but i don't know how to fix it... The INSERT statement conflicted with the FOREIGN KEY constraint "FK_tableB_tableA". The conflict occurred in database "database name", table "table A", column 'ID'.
Web Forms :: Session Variable Is Null When It Shouldn´t Be Null?
Mar 18, 2010I have a problem with a SessionVariable. I will explain what is happening:
1. From the default.aspx I send Session["LoginByAdmin"] = "Dummy"; and then redirect to this page where I have the code below. So the Page_Load sees that this Session["LoginByAdmin"] != null and enter this page. This works fine !
2. In the Page_Load, I later fill a ListBox1 with foldernames.
3. With Button1_Click1, I will now delete the choosen Folder in the ListBox1 wich works fine the first time and the ListBox updates the new existing folders in the ListBox. (I have wrapped this inside an updatepanel)
The problems comes now when I try to delete a choosen folder in the ListBox1 the second time in a row. When I select a Folder in the ListBox1 and now Press Button1, I will be redirected to "Default.aspx". This meens that this code is running: (That meens that Session["LoginByAdmin"] == null and I have not set this to null anywhere. This is my big question how this variable can be = null here?
if (Session["LoginByAdmin"] == null)
Response.Redirect("Default.aspx");
break;
[Code]....
MVC :: How To Use Reference Type To Change Not Null To Null Parameter
Feb 24, 2010I am using dropdownlist in my view page with some values which will display corresponding ID(primary key of other table) in my database.If i leave my dropdownlist blank and save it in database then its showing null parameter error. Can you explain how to use this reference type to overcome this error
View 2 RepliesSQL Server :: Handling NULL...Field Not Updating When NULL?
Nov 6, 2010i am using the following in a stored procedure.
[code]....
[Code]....Handling NULL...Field not updating when NULL?
Web Forms :: UpdateParameters.Add Uses The Word NULL Instead Of NULL Value To Sql Db
Jan 5, 2011In my code behind, I have the following code that I want to insert a null value for a parameter. Instead of doing that, it is adding the word "NULL" to my database. What am I doing wrong?
dsRevealedByCR.UpdateParameters.Add("txtGrantor","Null")
Web Forms :: Microsoft JScript Runtime Error On Page - "null" Is Null Or Not An Object
May 17, 2010m getting this error again and again. i m also using the ajax modalpopup extender in my page ..
View 3 RepliesWeb Forms :: Microsoft JScript Runtime Error - "null" Is Null Or Not An Object
May 13, 2010My site was woking fine, now i noticed that i get an error "Microsoft JScript runtime error: 'null' is null or not an object" when i checked the view source, i saw the following system generated code
<script type="text/javascript">
var Page_ValidationActive = false;
if (typeof(ValidatorOnLoad) == "function") {
ValidatorOnLoad();
function ValidatorOnSubmit() {
if (Page_ValidationActive) {
return ValidatorCommonOnSubmit();
}
else {
return true;
}
WebForm_AutoFocus('txtMailAddress');// --> IS THIS RIGHT???? out side the braces???
</script>
</form>
</body>
</HTML>
and a reference to this line below
<IFRAME id="__hifSmartNav" name="__hifSmartNav" style="display:none" src="/m2qa/WebResource.axd?d=fvL5WUdiCo1B4KvdiJfkfg2&t=633546432952161750"></IFRAME>
DataSource Controls :: Use Is Null In Query Without Using Parameters For It Or Should Use Parameters For This Field Where Value Is NULL
Jan 21, 2010here is my code for selectiong some records from db table
string strSql = "select * from mtblNBD where SentTo=@SentTo and InternalStatus Is NULL order by DeadLine desc";
SqlCommand com = new SqlCommand(strSql, con);
com.Parameters.Add("@SentTo", SqlDbType.NVarChar, 50).Value = (string)Session["uname"];
here I am using parameters for SenTo field but not for NULL so it is ok... or should I use parameters for this field where value is NULL , if yes then how can I use parameter for this
Null Value On .net DB Query
Jul 30, 2010I've been working on building a back end on an access database that allows users to search records using a web search box. I've been able to successfully set up simple search query's but have run into trouble where multiple criteria with "AND" statements (OR statements would return too much to be useful). My problem is this, when all five text boxes are filled out the query returns records no problem, but if even one is left blank i get nothing what so ever. Is there any thing I can do in either SQL or VB to either ignore null values entirely or convert them to wildcard values?
View 9 RepliesObject Is Null - How To Set - C#
Aug 30, 2010I have a variable FirstThreads of type List<Thread>. I am trying to do the following, but FirstThreads is always null.
FirstThreads.AddRange(Threads.Skip<Thread>(PageIndex * PageSize)
.Take<Thread>(PageSize));
I can't do this:
FirstThreads = FirstThreads.AddRange(Threads.Skip<Thread>(PageIndex * PageSize)
.Take<Thread>(PageSize));
ADO.NET :: How To Test If The Value Is Null
Dec 28, 2010I'm using the following code to retrieve a value from a SqlDataSource:
[Code]....
The code works fine as long as the variable has a value. But if it's null, then I get errors. How can I test if the value is null?
UrlReferrer Is Always NULL?
Apr 29, 2010Here's the scenario, we've built a url shortener (that we use only to shorten urls for Twitter to our website), and we also track the number of times a url has been clicked. So, for example.. the url might be something like "http://ourshortdomain.com/x9Mr"
Now, in many cases, we see as many as 1000 or 2000 clicks per shortened url, but the referrer is almost always null. How can this be, if the only place we're handing out that shortened url is on Twitter? Shouldn't all the url referrers be coming from Twitter?...
Page Cannot Be Null?
Oct 27, 2010I am using a ScriptManager in my aspx page and when I run on the submit button within the page I am receiving a "Page cannot be null" error message. I have looked around but cannot find anything that deals with this. I am writing in C# using VS2008 with the latest .NET framework, and the ScriptManager is for two Infragistics controls for multiline purposes
View 1 RepliesC# - Controller Getting NULL Value?
May 25, 2010I'm trying to make a call to a controller via jQuery $.post, but the parameter for my controller method keeps getting a NULL value despite it appearing to be setup similar to other controller methods.
CONTROLLER
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult SearchWeatherLocations(string searchFor)
{
//Do Some Magic
}
[Code]....
.net - TestContext Is Null
Jun 17, 2010Pretty simple test:
[TestClass]
public class MyTestClass
{
private TestContext _testContext;[code]....
Fails... Now I am using VS2008 Development edition. Is there any possibility to fix this? Or I need to have a Test (or Team Suite) edition?
P.S. Access to TestContext object is required to have access to it's RequestedPage property
Checking For Null Values
Jan 28, 2010protected void rptNavigation_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e){
if (!((e.Item.ItemType == ListItemType.AlternatingItem) || (e.Item.ItemType == ListItemType.Item)))
{return;
}string Name = string.Empty;
if (IsDBNull(e.Item.DataItem["FullName"])) {
Name = String.Empty;}
else {Name = (string)(e.Item.DataItem["FullName"]);}
Literal ltlLiteral = (Literal)(e.Item.FindControl("ltlLiteral"));
ltlLiteral.Text = Name.ToString();
I get error for IsDbNull - Error 1 The name 'IsDBNull' does not exist in the current context. What's the best way to check for null values returned from db? also I get errors on both lines where (e.Item.FindControl(ltlLiteral")); is present ERror: Cannot apply indexing with [] to an expression of type 'object'
Checking For Null List?
Jan 23, 2011I am making a class with an optional paramiter which will be a List<> paramiter. I want to set it's default value to null so I have used List<Params> Param = null. What am not 100% sure is checking the list to see if it was set to null or not. Is using:
if (Param == null)
Error While Checking Url - Key Can't Be Null
Sep 14, 2010.NET noob here (as in I know next to nothing, I'm trying to pick up some of the scraps left by my developer). Ok, I am getting this error on a number of my .aspx pages: Error while checking url '/': Key cannot be null. Parameter name: key Interestingly, I get this on my homepage on which the only .NET code is in the form of two includes, e.g: <% Response.WriteFile("/includes/footer.aspx") %> These includes in themselves only contain HTML, so I assume the issue can only be related to these or a configuration issue?
View 4 RepliesHow To Pass A Null And Another Value Into A Function
Oct 19, 2010Ok, I keep running into this problem
In my aspx I am calling a simple function.
But the problem is, that the function is either, string, integer, etc.
If there's null's in the data, the function explodes because it's set to a string or integer, etc.
How can I make the function accept both a null, and another data type so that I can
write some if then's to do different things if it is null or another data type.
Here is the code to give you an idea
[code]....
VS 2008 Convert Null To Zero?
Dec 7, 2010i have following insert code
Code:
Dim hotel_book As String = "insert into hotelbooking (Userid, hotel_requirement_Types, singleroom, single_no_room,doubleroom,double_no_room,checkin_date,checkout_date) " & _
"VALUES (" & userid & ", '" & ckchecked.Text & "' , " & Convert.ToByte(boolsing) & " ," & Int32.Parse(no_single_room.Text) & "," & Convert.ToByte(booldoub) & "," & Int32.Parse(no_double_room.Text) & " ,'" & txt_checkin.Text & "' ,'" & Me.txt_checkout.Text & "' )"
i want that if no_single_room.Text is null and have no value it should convert it into zero other wise Int32.Parse(no_single_room.Text) in same insert statement