Thanks, I agree. Member 6-Sep am. If you define the datetime as nullable, it's default value is null , not any date. Especially when you have explicitely set the variable to null, the default doesn't even matter. Sounds like you're either using a different variable or you set it somewhere else. Use the debugger and with a watch, see the changes that are taking place concerning this variable.
DateTime is not nullable type. Posted 5-Sep pm Prerak Patel. Don't mix up default time with null. Null should be used to carry semantic if "undetermined time, no time". I would prefer the simpler-to-use variant shown by Mika though, please see.
Well, Here is the fundamental stuff of nullable DateTime. DateTime struct itself does not provide a null option. Posted 5-Sep pm Abhijit J ana. Posted Oct pm Member Null Value pass in datetime field C. Posted Jul am vickey. Posted 5-Sep pm Anil Honey Anil Honey 6-Sep am. We can't assign null value to datetime. Parameters[" AllowNseFno"]. IsNullOrEmpty txtfeddt. Close ; cmdL1.
Dispose ; and the error is : Failed to convert parameter value from a String to a DateTime. We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, learning, and sharing knowledge. You're trying to visit a URL that doesn't currently exist on the web. Most likely, a member posted a link a long time ago to a web page that has since been removed. It's also possible that there was a typo when posting the URL.
We redirect you to this notice instead of stripping out the link to preserve the integrity of the post. DateTime ; cmd1. Text; System. Null; if joindate. Thanks in Advance. Answered by PsychoCoder 6 in a post from 11 Years Ago. Value Jump to Post. Take a stab at this: if string. IsNullOrEmpty joindate. But where to use DBNull. First of all, to be able to insert null into a database column, the column must accept null s. Open the table in the designer, and see if the relevant column is nullable or not.
If it's not and you try to insert a null value, you'll get the error:. That said, since you are using stored procedures to insert data, I would recommend using default values for the parameters on the procedure level, instead of burdening the aplication code. Than, you can just not set the parameter on the application side, and it would work correctly:. Note that there is no else branch, so if the InsertDate is empty, the parameter is not sent at all.
Value ; else cmd. AddWithValue " enddate", Convert. ToDateTime InsertDate. Text ;. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?
Collectives on Stack Overflow. Learn more. How to insert null in datetime type column in sql server Ask Question. Asked 8 years, 5 months ago. Active 2 years ago. Viewed 83k times.
Null; if InsertDate. Parameters[" InsertDate"]. Which error is thrown? OK Paste as. Treat my content as plain text, not as HTML. Existing Members Sign in to your account. This email is in use. Do you need your password? Submit your solution! When answering a question please: Read the question carefully. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem.
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