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Thanks for the reply but the MemberID in the parameterized query needs
cb_MemberID.selectedValue to be supplied. The problem is this comboBox is being populated by another database & corresponding code.
This populating code is given in the
form_load event but the I am getting
value not supplied error.
Here is the code I am using for populating the cb_MemberID comboBox
string query2 = "select * from [Member Registration]";
con.ConnectionString = global::#connectionstring;
SqlCommand com1 = new SqlCommand(query2, con);
con.Open();
SqlDataAdapter adp1 = new SqlDataAdapter(com1);
DataTable dt1 = new DataTable();
adp1.Fill(dt1);
cb_MemberID.ValueMember = "ID";
cb_MemberID.DisplayMember = "MemberName";
cb_MemberID.DataSource = dt1;
con.Close();
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Hi,
is this a WinForms application?
is the ComboBox using data binding?
which event are you using, and what's inside its handler (please show relevant code).
have you looked at the actual SQL command when it works and when it fails?
are you using try/catch blocks which do actually catch and show exceptions?
did you single-step with the debugger?
and/or possibly read ComboBox SelectedItem, SelectedValue, SelectedWhat??? – jaredpar's WebLog[^]
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Hi,
i want to resize (Readjust) all of the controls that are belongs to a Form or User Control while i am resizing the User Control or the Form. I already have used from both docking and anchoring , but non of them are working properly. Is there any way to create a class to overcome this. i also searched but i did not get any proper answer.
i will be thankful if you professionals coach me to do it.
Thank you in advance.
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That depends one what controls you are using, and what you consider "working properly" - you will have to describe what you have done (with a tiny example if possible) and what it did that you didn't want.
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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Hi, thank you for your help. when i use from anchor, during resizing, all controls take place on or below each other. i also chenged their autosize to false but the problem is still exists.
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No, that doesn't make any sense.
Stop trying to type as little as possible and explain in detail, remembering that we can't see your screen, access your HDD, or read your mind - we only get exactly what you type to work with.
So we have no idea what anchor settings you used, or how your controls are arranged to start with - we don't even know if "resize" means your form "getting bigger" or "getting smaller"; "taller", "shorter", "both"; all of the above!
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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Hi,
excuse me, you're right. i am using c# and winApp. i want to change controls of a form or an user control in the same time with resizing the form or user control with mouse down movment in any direction (N,E,WS,NE,NW,SE,SW) and also with minimizing the and maximizing the form or user control. thank you for you help.
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So you're not listening to a word I say, just posting no information?
Is there any point in trying to ask a question if you can't be bothered to tell us what we need to know?
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
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Hi,
Excuse me if i did not ask my question properly.
i only want to know is it possible to create a class to resize controls belong to a parent while i am resizing my parent (Form or user control)?
because when i am using from anchoring and docking in the controls properties, sizes are will changed but the controls will go under/Over each other.
i do not know what else shall i post!
Thank you for your kindly trying to help me .
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If you're looking to create a class to handle this for you, that's not going to work.
You've simply got more learning to do to properly handle setting up your layouts with TableLayoutPanel, FlowLayoutPanel, Docking, Anchoring, any other containers, ...
It's not a simple "Ask a question and get an answer that will fix everything". The only answer to this problem is more learning and experimentation.
We can't see your layout and screen shots isn't going to help that because we also cannot see the properties of your controls and containers.
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You have to set up an event handler for the form's size changed event, and iterate all of the controls you want to resize.
".45 ACP - because shooting twice is just silly" - JSOP, 2010 ----- You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 ----- When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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HI,
Thank you for your help. do you know an essay through the site?if yes, could you please send its link to me?i have tried to do this but i could not overcom.
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How can anyone possibly do that? You haven't even said what platform you're using. Our answers are only as good as your question .
".45 ACP - because shooting twice is just silly" - JSOP, 2010 ----- You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 ----- When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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Hi,
SOOooooooory, i forgot. i am using c# and windows application.
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Don't - simply design for the smallest acceptable monitor size, use docking, and accept that larger monitors will have a lot of white space. This is the generally accepted solution to different monitor size/resolution.
A control designed for 1280x960 looks bloody silly stretched to 1920x1024.
Never underestimate the power of human stupidity -
RAH
I'm old. I know stuff - JSOP
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1. by using a combination of docked controls, and other controls that are anchored, you can achieve pretty good proportional UI re-sizing in WinForms.
2. you will not achieve good quality arbitrary proportional font re-sizing in WinForms because of changes in font rendering: fonts are rendered clearly in certain fixed "quantum state sizes" ... you want more than that, use WPF, where fonts, like everything else, get run through the vector graphic engine.
I will respond further if you start giving details of your UI structure, and get specific. Describe what AutoSizeMode setting you are using; describe what is docked, and not docked.
«Where is the Life we have lost in living? Where is the wisdom we have lost in knowledge? Where is the knowledge we have lost in information?» T. S. Elliot
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Hi,
Thank you for your help and advise.
i am trying to create a class to justify all of the components of the forms and user controls (each one of them, separately). I think it is possible. when i try to use from anchoring or docking, with resizing the form or user control, for instance, textBoxes will go under Buttons (some of them will move). my aim is to justify all controls belongs to a parent while resizing the parent with mouse movement and maximizing.
thanks a million to care about my question.
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Member 13325846 wrote: textBoxes will go under Buttons (some of them will move). Changing the z-order at run-time: you don't want to go there.
While I have a sense of what you want to do, you are not specific enough for me to offer further comment.
You did not respond to the issue I raised about the problems of trying to scale fonts in WinForms.
I suggest you make three visual mock-ups showing the initial UI state, and that initial state sized larger, and smaller. Post links to those pictures here.
«Where is the Life we have lost in living? Where is the wisdom we have lost in knowledge? Where is the knowledge we have lost in information?» T. S. Elliot
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According the the discussion until now and the given answers and comments :
If you want to resize controls when resizing the container-control (Form, Panel, Usercontrol and so on) you have to memorize the location of each control and it's size depending on the Master-Form.
If you now resize the Form each control in it must shrink or grow and each location must be shifted - depending on the changes. For this Anchors and so on are now helpful. You need to create a method which is called with the Form.SizeChanged-Event.
If you do it like this you should know, that not every Control does a properly resizing. Also it will be possible that the look becomes very strange.
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As I read Adam Storr - Playing with C# 7 - Deconstruct, I kept hoping that it would answer at long last the question of how to do with in C#. Alas, it fell short again.
Does anybody besides me wish that C# supported with blocks, or have I overlooked a seriously underused language feature?
David A. Gray
Delivering Solutions for the Ages, One Problem at a Time
Interpreting the Fundamental Principle of Tabular Reporting
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No. I don't miss basic (in any of it's evil forms) either.
".45 ACP - because shooting twice is just silly" - JSOP, 2010 ----- You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 ----- When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
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I don't miss Basic, either, but I miss that construct, which came to my attention when it became part of VBA as it manifested in Microsoft Access 2.0.
David A. Gray
Delivering Solutions for the Ages, One Problem at a Time
Interpreting the Fundamental Principle of Tabular Reporting
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