Conversion From String "" To Type 'Double Is Not Valid?

Apr 4, 2011

I keep getting this error when attempting to execute this code, even after placing a CType around the value and defining it as double?Private Sub GridView1_RowDeleting(sender As Object, e As System.Web.UI.WebControls.GridViewDeleteEventArgs) Handles GridView1.RowDeleting' The deletion of the individual row is automatically handled by the GridView.

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Error Conversion From String To Type Double Is Not Valid

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This code works somewhat, but it won't place all of the text into the textbox.. If I change a few things I get an error where I highlighted the code in red. Conversion from string "" to type 'Double' is not valid. But the code works, like I said somewhat, as you see it, it just doesn't load all of the text to the text box.555632.txt

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Public Class Form1
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I am having badly stuck!!I have spent hours in trying to solve that.

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DataSource Controls :: Conversion From String "" To Type 'Double' Is Not Valid Error?

May 14, 2010

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Conversion From String "" To Type 'Double' Is Not Valid?

Apr 4, 2011

I have a variable that contains an integer which I then want to save as the value for a column (of type integer in the sql database and int32 in the entity model), but when I try this I receive the error:

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I'm very confused by this since I'm not using a string or a double? The trouble-making line is:

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Dec 15, 2010

I am wishing to retrive picture stored in sql server database to web form using gridview control. I have created a Handler.ashx file with following coding:

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Sep 6, 2010

I have a FormView that allows a user to register for a company event. I want to do a couple of things with this form.

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I know how to do both of these things, but i am having trouble doing both at the same time.

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[Code]....

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However, after I place information into the formview on the first page, it throws up this error:

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Feb 17, 2010

I'm trying to get a value from a database and I'm getting an error, see code below:

[Code]....

I get and error when I'm trying to convert the value out of the stored procedure to the string SNAME. Error is as follows:

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I have a web in ASP.NET AND CODE IN VB MY DATABASE IS ACCESS WHICH WAS CREATED INITIALLY AND OLD DATA IS ACCESSED FROM THIS ACCESS DATABASE.

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Conversion from type 'DBNull' to type 'String' is not valid.

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[Code] .....

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The error constantly occured until the IIS was reset and recompilled the site, its been running fine since, however im just trying to figure out what could cause such an error to occur.

I've narrowed it down to a line of code which is:

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I am getting the below error. see my code below and let me know what is wrong.

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[Code]....

Here's my controller:

[Code]....

The objects are generated by ADO.NET Entity Framework. Organizations is its own object, but also a property of Profile (each user belongs to one organization). Now I understand what the error message is saying, just not sure how else I'm supposed to do this.

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Jun 29, 2010

I am getting an error when attempting to call a stored proc from my asp.net page.

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I am getting an error when attempting to call a stored proc from my asp.net page.

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I have the following:

[code]....

I keep getting this error:

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