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0 VotesAssigning NULL to ComboBox
Check your BeforeUpdate or ValidationRule procedure for this control.Answered | 7 Replies | 980 Views | Created by KhurramKZ - Saturday, May 28, 2016 7:00 AM | Last reply by KhurramKZ - Monday, May 30, 2016 6:10 AM
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0 Votes
Check if ComboBox is empty
If you then bind the SelectedItem property of the ComboBox to your SelectedItem source property, you could simply check if it is NULL in the view ...Answered | 1 Replies | 2597 Views | Created by IamGuy84 - Wednesday, August 5, 2015 12:06 PM | Last reply by Magnus (MM8) - Wednesday, August 5, 2015 12:40 PM -
0 Votes
How to reset a combobox to null with style list....
The normal set to initial of a combobox is combobox1.SelectedIndex = -1 Success CorAnswered | 3 Replies | 4918 Views | Created by GotVBQuestions - Tuesday, November 16, 2010 3:17 PM | Last reply by Cor Ligthert - Wednesday, November 17, 2010 11:36 AM -
10 Votes
how to check sqldatareader is null or not null
= DbNull.Value) //if value in columnA is not null { //.... } } //or if reading a column if more rows: stirng query = "SELECT ColumnA FROM ...Answered | 4 Replies | 56318 Views | Created by miruan - Wednesday, August 22, 2012 12:24 PM | Last reply by Mitja Bonca - Wednesday, August 22, 2012 2:14 PM -
0 Votes
set combobox to null
You can try it out by adding a Combobox to your form and make sure you'll have at least 4 options to select from.Answered | 11 Replies | 967 Views | Created by R.Nock - Sunday, July 8, 2018 7:31 PM | Last reply by R.Nock - Monday, July 9, 2018 4:36 PM -
2 Votes
How to check for null value?
Public Sub CoerceGarbageCollection(Optional ByVal disposed As Object = Nothing) If Not IsNothing(disposed) Then GC.SuppressFinalize(disposed) End If ...Answered | 3 Replies | 4117 Views | Created by Ramaraj Kumar - Tuesday, June 29, 2010 12:34 PM | Last reply by jinzai - Tuesday, June 29, 2010 2:39 PM -
0 Votes
check for null
Hasa, you can use IS NULL and IS NOT NULL.Answered | 2 Replies | 4259 Views | Created by Dr.X1987 - Friday, March 19, 2010 2:18 PM | Last reply by Abdshall - Friday, March 19, 2010 2:25 PM -
0 Votes
Checking for null
Does your file have spaces or does it have null characters, or both?Answered | 2 Replies | 1627 Views | Created by RVingComputer - Tuesday, October 9, 2012 8:50 PM | Last reply by Chris Dunaway - Wednesday, October 17, 2012 10:31 PM -
2 Votes
How to check if string variable is null?
You could use ISNULL(@parameter, 'NULL'), which would replace the ANSI NULL value to a string of NULL and then update your precedent constraint.Answered | 8 Replies | 12707 Views | Created by BorkaS - Friday, February 1, 2013 11:22 AM | Last reply by BorkaS - Friday, February 1, 2013 3:40 PM -
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How to check if object value is Null and if null assign NULL to type datetime
That's a pretty high overhead for just a null check.Answered | 5 Replies | 9812 Views | Created by NewBInCoding - Wednesday, February 28, 2018 3:09 PM | Last reply by User3DX - Wednesday, February 28, 2018 11:47 PM -
2 Votes
Bound Combobox will not Update Dataset with Null/Blank
When implemented incorrectly you typically will see a table that expects NULL values but gets empty strings sent back during updates.Answered | 7 Replies | 4819 Views | Created by Phill D - Thursday, October 4, 2012 1:58 PM | Last reply by Phill D - Friday, October 12, 2012 12:43 AM -
0 Votes
check for null
But the code below cannot be used for checking if the node has td tags.Answered | 9 Replies | 4582 Views | Created by l9429727 - Tuesday, April 5, 2011 7:08 PM | Last reply by Cookie Luo - Tuesday, April 12, 2011 2:14 AM -
0 Votes
Display checkbox checked item in combobox in wpf
Suppose I have checked all the item one by one after that If I unchecked last check box in combobox It's erasing all the value from TextBlock.Answered | 4 Replies | 7713 Views | Created by DevAB - Friday, March 6, 2015 1:31 PM | Last reply by Magnus (MM8) - Saturday, March 7, 2015 3:58 PM -
0 Votes
Check for null
How about: int id = Convert.ToInt32(ddlDeliveryCity.SelectedValue ??Answered | 6 Replies | 2801 Views | Created by NoEgo - Friday, October 17, 2008 5:37 AM | Last reply by Marc Gravell - Friday, October 17, 2008 6:43 AM -
0 Votes
how to check the fields in subform are null
The question is like I was able to check all fields(those user inputs) but cannot get those work in the subform even after I use IsNull function.Answered | 3 Replies | 5421 Views | Created by jinzuya - Tuesday, April 27, 2010 7:42 PM | Last reply by Alex Feng (SQL) - Friday, April 30, 2010 2:43 AM -
6 Votes
Checking for NULL
In SQL, NULL is an often misunderstood concept.Answered | 17 Replies | 1043 Views | Created by Y a h y a - Wednesday, December 16, 2015 9:18 PM | Last reply by Erland Sommarskog - Saturday, December 19, 2015 10:58 AM -
0 Votes
checking Null var
my if is not working that's the question how do I check for nulls in a var?Answered | 8 Replies | 3059 Views | Created by FrancoisTaljaard - Friday, February 13, 2009 8:20 AM | Last reply by nikho - Friday, February 13, 2009 10:24 AM -
1 Votes
How can i check column is null in dataTable?
Try this ...Answered | 6 Replies | 43851 Views | Created by buffering - Tuesday, July 31, 2012 7:59 AM | Last reply by Mohammmad Nasir - Wednesday, August 1, 2012 6:43 AM -
1 Votes
Code Review on checking for null
Only problem is for the property FirstItem, you are not checking whether oitems is null or not.Answered | 2 Replies | 2856 Views | Created by NoEgo - Monday, November 23, 2009 10:54 PM | Last reply by A.m.a.L Hashim - Wednesday, November 25, 2009 7:37 AM -
2 Votes
How to cancel ComboBox change?
For some reason ComboBox stubbornly keeps the value user chose.Answered | 6 Replies | 1819 Views | Created by Wojciech Sura - PGS Software - Wednesday, March 25, 2015 1:33 PM | Last reply by Andy ONeill - Wednesday, March 25, 2015 2:43 PM - Items 1 to 20 of 2792055 Next ›
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