Recent content by aprobe

I've added a LostFocus Event to the DateTimePicker and checked the value there and it is now working correctly. Why it works there and not on the Validated event I cannot understand!

I'm using VS2008 and have an unbound DateTimePicker control on a windows form. It's working correctly if I select a date from the calendar and then press tab to exit. I have a "Validated" event and the Text property (and value property) show the value as displayed. However, If I go back and...

After many hours of searching have found the cause of the problem. When you have the 'EditMode' property of the DataGridView set to 'EditOnEnter' you cannot delete the row even if you select the entire row on the row header and press the delete key. I have reset it to 'EditOnKeystroke' or...

I have an unbound DataGridView. Previously I was able to select the row header and press the Delete key to delete the row. This no longer works. I don't know when it stopped working. I have 'AllowUserToDeleteRows' set to True. The entire row is selected and pressing the Delete key erases...

Whenever I add a new TabPage to a TabControl the property UseVisualStyleBackColor is set to true on all the other TabPages on the TabControl. This causes all my background colors to disappear and I have to manually go into each TabPage and set the property back to False. Does anyone know why...

As mentioned by earthandfire previously, Delphi makes use of 'With' statements. However, there is one very big disadvantage when using this in Delphi and that is with debugging. When you hit a breakpoint you cannot simply hovver over the variable using the mouse to show the current values as...

If items such as textboxes or labels are placed on tabsheets on a windows form and you programatically change a value on a tabsheet which is not visible (or not previously been shown), when you save the record the change is never updated. If the user selects the tabsheet prior to saving the...

Many thanks for your help on this. I'll print this off for future use. [thumbsup2]

Great, It does what I want. I never thought of setting ReadOnly, I've always tended to use Enable/Disable. I still would be interested to know how to change the ForeColor of disabled items.

I have disabled text boxes which are greyed out and I have no control of the font color. I can do something like c.ForeColor = Color.Red; which works fine with enabled textboxes but is totally ignored on disabled boxes which remain a messy murky grey. Thanks

This has not resolved the problem. Having spent many hours searching I found similar reported problems and it was also reported as a known MS bug. Having pulled what little hair I have left out I kept trying different things. Finally I have resolved it. When the record position has...

I have a form with multiple tabsheets on it. When the user is updating an existing record I am trying to perform certain validation dependant upon the checked state of a checkbox on one of the tabs. The checkbox is bound to a dataset but the checked state of that check box is ONLY set when the...

Great thanks for that. It's given me some good ideas!

It works if I update the column on the current row of the dataset directly to DBNull.Value. Messy but it works. Thanks for that.

I'm using .Net 1.1 and Sql Server database. I have a situtation where a combo box is bound to a dataset and will quite happily update the column when the user changes the value. The default value for the field is null. In this case the field is a Country ID code and has a foreign key on a...