Comments by Wu Jiecheng

Wu Jiecheng 29-Sep-15 8:51am View

Googled "sql injection" and shocked! I 've never been aware of sql inject attack! Thanks for warning me! I tried getting the expression rs.getRow() right after the executeQuery(sql) statement and got the value 0. Is there anything wrong with my functiong getConn()?

Wu Jiecheng 28-Sep-15 10:24am View

I tried PreparedStatement way, but got the same effect - no exceptions and no result row neither.

Wu Jiecheng 23-Sep-15 2:59am View

Thanks for answering my question, I found my way out. You can check my solution below:)

Wu Jiecheng 23-Sep-15 2:59am View

Thanks for answering my question, I found my way out. You can check my solution below:)

Wu Jiecheng 10-Sep-15 20:45pm View

What I'm trying to do is to show 2 different tooltips at 2 different time. The first tooltip is shown when the mouse is hovering over the textbox (default tooltip can do that), while the second one is shown to warn the user when he clicks the "submit" button and text of the textbox is not suitable.

Wu Jiecheng 2-Sep-15 9:37am View

@U. G. Leander just solved my question! It's done if I set the HorizontalAlignment and VerticalAlignment properties to be Stretch.

Wu Jiecheng 2-Sep-15 9:35am View

This Stretch thing perfectly solve my question! I've achieved what I wanted! Thank you so much:)

Wu Jiecheng 1-Sep-15 21:46pm View

It seems that even I put my mouse inside the container control ( e.g. Border, Grid and so on) but over a blank area, WPF doesn't consider the mouse is hovering over the container.

Wu Jiecheng 1-Sep-15 21:43pm View

I've tried the trigger way, it's the same effect as I implement the Mouse_Enter & Mouse_Leave events. Namely, when I put the mouse over the Border or its sub-controls, the BorderBrush property changes ( e.g. blue). But when I put the mouse over the blank area ( still inside the Border), the BorderBrush property becomes transparent again. It seems that the Trigger and Mouse events both don't work well for a container ( Border, Grid and so on).

Wu Jiecheng 31-Aug-15 21:16pm View

The link you gave me was about getting the coordinates of a WPF window from a monitor, that was not my point. And I tried your second way, it had the same effect when I merely implemented the UserControl_MouseEntered. I'm thinking of giving up implementing this Border thing.
Again, thank you so much for your efforts explaining and searching, hope you have a good day:)

Wu Jiecheng 31-Aug-15 10:14am View

Thanks for your patient explanation.
I'm using a .Net Framework 4.5.

Wu Jiecheng 31-Aug-15 6:00am View

Thanks for your brilliant idea, but it seems that my usercontrol (derived from "UserControl") doesn't have the definitions of "RectangleToScreen" and "ClientRectangle":(
Is there any way I can fix this?

Comments by Wu Jiecheng (Top 12 by date)