We Keep Coding

"TextBox.BorderStyle = BorderStyle.None" makes bottom of text invisible

Whenever I set a TextBox's border style to "None" the bottom of text in the box is invisible. That means I can't see underscores and descenders of letters like y and j.
Here is the textbox with border
Here is the textbox without border
Any suggestions as to how this is solved would be appreciated.

This seemed to work for me:
public Form1()
{
InitializeComponent();
textBox1.Multiline = true;
textBox1.MinimumSize = new Size(0, 30);
textBox1.Size = new Size(textBox1.Size.Width, 30);
textBox1.Multiline = false;
}
Setting box to multi line to adjust size of the box then when its changed back keeps the size.

C# label should do diffrent things when clicked

I need a label which does something different with every click.
private void open_Click(object sender, EventArgs e)
{
for (int i = 0; i < 5; i++)
{
builder = new StringBuilder(4);
builder.Append(zahl1.Text);
builder.Append(zahl2.Text);
builder.Append(zahl3.Text);
builder.Append(zahl4.Text);
code = builder.ToString();
}
if( code== setCode)
{
openAndClose.BackColor = Color.DarkGreen;
setNewCode.Visible = true;
}
else
{
}
}
With the first click the BackColor gets green and the visible is true.
And now it should go back in the start position if I click it again.
That means BackColor should be red and the visible should be false.
Can I do this wth a second Eventhandler?
openAndClose.Click += new EventHandler(open_Click);
Thanks

You could simply do the following:
if(code == setCode)
{
openAndClose.BackColor = openAndClose.BackColor == Color.DarkGreen ? Color.Red : Color.DarkGreen;
setNewCode.Visible = !setNewCode.Visible;
}
The first part toggles the color between green and red, and the second part toggles the visibility.

You should be able to get what you want by having a global field which denotes if the label has been clicked before hand or not.
In short, initially set your flag to false, do something like so:
EventHandler()
{
if(!flag)
{
BackColour = Green
Visible = true
}
else
{
BackColour = Red
Visible = false
}
flag = !flag
}
Attaching multiple event handlers will simply invoke multiple event handlers each time.

I think you do not even need a extra boolean or the check. You can just check if visible then hide, if not visible make it appear

Changing The Property Of An Object Using Variables? C#/Visual Studio

Ok so I have 100 buttons and I need to change there colors based on conditions in a while loop. They are named button1, button2, button3 ,etc. during the first time around the loop (iteration?) I need to edit button1, the next time button2 the third time button3, etc.
I thought I could just make a string that equaled "button", add the number of times around the loop to it and change the color like that.
String ButtonNumber = "button" + i; where i = number of times around loop
When I try to edit the color using ButtonNumber.BackColor = Color.Red; it won't let me because it's not treating ButtonNumber like a button, but like a string. How do I accomplish this? Thanks! (this is my first time programing pretty much)

Consider using Controls.Find to find a control by name, and then you can change it's properties:
for (int i = 1; i <= 100; i++)
{
var buttonName = string.Format("button{0}", i);
var foundControl = Controls.Find(buttonName, true).FirstOrDefault();
if (foundControl != null)
{
// You can now set any common control property using the found control
foundControl.BackColor = Color.Red;
// If you need to set button-specific properties (i.e. properties
// that are not common to all controls), then cast it to a button:
var buttonControl = foundControl as Button;
if (buttonControl != null)
{
buttonControl.AutoEllipsis = true;
}
}
}

Can StatusStrip automatically change its height depending on its items' size?

I've got a statusstrip with a number of items. One of them is a ToolStripStatusLabel with Spring = True.
When the text of the label is too long, one can't see it.
Is it possible to make the statusstrip become higher and show whole text in multiline?

This is an interesting problem....I tried a couple of things but no success...basicall the ToolStripStatusLabel is very limited in capability.
I ended up trying a hack that gives the result you want but am not sure even I would recommend this unless of course this is absolutely necessary...
Here's what I have got...
In the properties of your StatusStrip set AutoSize = false, this is to allow the StatusStrip to be resized to accommodate multiple lines. I am assuming statusStrip called ststusStrip1 containing label called toolStripStatusLabel1.
At form Level declare a variable of TextBox type:
TextBox txtDummy = new TextBox();
At Form Load set some of its properties:
txtDummy.Multiline = true;
txtDummy.WordWrap = true;
txtDummy.Font = toolStripStatusLabel1.Font;//Same font as Label
Handle the paint event of the toolStripStatusLabel1
private void toolStripStatusLabel1_Paint(object sender, PaintEventArgs e)
{
String textToPaint = toolStripStatusLabel1.Tag.ToString(); //We take the string to print from Tag
SizeF stringSize = e.Graphics.MeasureString(textToPaint, toolStripStatusLabel1.Font);
if (stringSize.Width > toolStripStatusLabel1.Width)//If the size is large we need to find out how many lines it will take
{
//We use a textBox to find out the number of lines this text should be broken into
txtDummy.Width = toolStripStatusLabel1.Width - 10;
txtDummy.Text = textToPaint;
int linesRequired = txtDummy.GetLineFromCharIndex(textToPaint.Length - 1) + 1;
statusStrip1.Height =((int)stringSize.Height * linesRequired) + 5;
toolStripStatusLabel1.Text = "";
e.Graphics.DrawString(textToPaint, toolStripStatusLabel1.Font, new SolidBrush( toolStripStatusLabel1.ForeColor), new RectangleF( new PointF(0, 0), new SizeF(toolStripStatusLabel1.Width, toolStripStatusLabel1.Height)));
}
else
{
toolStripStatusLabel1.Text = textToPaint;
}
}
IMP: Do not assign the text property of your label instead put it in Tag we would use it from Tag
toolStripStatusLabel1.Tag = "My very long String";

Hide and show a cell of the TableLayoutPanel

My tablelayout panel has one column and three rows. (one docked to Fill panel in each cell.)
Now I would like to be able to hide/show the rows . I want only one row to be visible at any time ( based on a user selection of some radio buttons) and I want to to get resized so it fills all the area of the TableLayoutPanel.
How can I do that? Any thoughts?

If rows in your TableLayoutPanel is autosized then hiding content panel will hide cell where panel placed too.

I would suggest setting the other rows heights to 0 is the easiest way:
Row one:
this.tableLayoutPanel1.RowStyles[1].Height = 0;

Try this
TableLayoutPanel1.ColumnStyles[1].SizeType = SizeType.Absolute;
TableLayoutPanel1.ColumnStyles[1].Width = 0;

So why did you use a TableLayoutPanel?
Just put three Panels on your form, fill in everyone the content of each row and set the Dock property of all three panels to Fill. Set two panels Visible = false and one to true.
If you like to see another panel, just make it visible and hide the other two (based on your radio button settings).

My scenario is similar. I needed a TableLayoutPanel with 4 rows each of which needed to be visible according to a checkbox selection. So instead of only showing one row at a time, I can show 1 - 4.
After designing the layout with 1 column and 4 rows, the controls were added and Dock set to Fill for each one.
Then in a single CheckedChanged event handler for the checkboxes, I coded as shown below. It's kind of a brute force method, but, Hey...it works!
private void checkBox_CheckedChanged(object sender, EventArgs e)
{
this.SuspendLayout();
int seldCount = checkBox1.Checked ? 1 : 0;
seldCount += checkBox2.Checked ? 1 : 0;
seldCount += checkBox3.Checked ? 1 : 0;
seldCount += checkBox4.Checked ? 1 : 0;
float pcnt = 0;
if (seldCount == 1)
pcnt = 1;
if (seldCount == 2)
pcnt = 0.5f;
if (seldCount == 3)
pcnt = 0.33f;
if (seldCount == 4)
pcnt = 0.25f;
int newHeight = (int)(tableLayoutPanel1.Height * pcnt);
if (checkBox1.Checked)
{
tableLayoutPanel1.RowStyles[0].SizeType = SizeType.Percent;
tableLayoutPanel1.RowStyles[0].Height = newHeight;
}
else
{
tableLayoutPanel1.RowStyles[0].SizeType = SizeType.Absolute;
tableLayoutPanel1.RowStyles[0].Height = 0;
}
if (checkBox2.Checked)
{
tableLayoutPanel1.RowStyles[1].SizeType = SizeType.Percent;
tableLayoutPanel1.RowStyles[1].Height = newHeight;
}
else
{
tableLayoutPanel1.RowStyles[1].SizeType = SizeType.Absolute;
tableLayoutPanel1.RowStyles[1].Height = 0;
}
if (checkBox3.Checked)
{
tableLayoutPanel1.RowStyles[2].SizeType = SizeType.Percent;
tableLayoutPanel1.RowStyles[2].Height = newHeight;
}
else
{
tableLayoutPanel1.RowStyles[2].SizeType = SizeType.Absolute;
tableLayoutPanel1.RowStyles[2].Height = 0;
}
if (checkBox4.Checked)
{
tableLayoutPanel1.RowStyles[3].SizeType = SizeType.Percent;
tableLayoutPanel1.RowStyles[3].Height = newHeight;
}
else
{
tableLayoutPanel1.RowStyles[3].SizeType = SizeType.Absolute;
tableLayoutPanel1.RowStyles[3].Height = 0;
}
this.ResumeLayout();
}

To hide row try this!!
tableLayoutPanel1.RowStyles[1].SizeType = SizeType.Absolute;
tableLayoutPanel1.RowStyles[1].Height = 0;

I had similar task to do and my solution is following:
Add a TableLayoutPanel to your form (or any container).
Set TableLayoutPanel's columns and rows count to 1 and size to 100%.
Set Dock to Fill.
Set GrowStyle to fixedSize.
Set AutoSize to true.
Then programmatically add all of three forms/controls, one of which you have to show depending on radio button choice. Be sure that only one of them is visible. That could be done with initial FirstControl.Show(); and then on each RadioButton event hide the current one and show another. you may "remember" in local variable (say: "currentlyVisibleControl" the reference which is currently visible)
note: if you will .Show() more than one at time. then TableLayoutPanel wil fire the exception that it is full and can't add any more item.
P.S. In My own example I have TableLayoutPanel in MDI window and three forms which substitute each other on button clicks on them so I think copying my source code will complicate the "verbal" example.
P.P.S. From my experience Visual Studio does some weird things in design mode sometimes. I had to remove and re-add the TableLayoutPanel to set properties correctly and get the results both in designer and in runtime. So if either autosize or absolute/percent values are not depicted on designer screen it may be designers problem rather that yours. JUST DELETE IT AND RETRY.

I tried fooling around with the Height and SizeType properties, but it was giving me odd results. For example, the Labels on the target row were being hidden, but the TextBoxes were not.
Here is an extension class that I came up with using #arbiter's suggestion of hiding the children Controls of the row.
// these methods only works on rows that are set to AutoSize
public static class TableLayoutPanelExtensions
{
public static void HideRows(this TableLayoutPanel panel, params int[] rowNumbers)
{
foreach (Control c in panel.Controls)
{
if (rowNumbers.Contains(panel.GetRow(c)))
c.Visible = false;
}
}
public static void ShowRows(this TableLayoutPanel panel, params int[] rowNumbers)
{
foreach (Control c in panel.Controls)
{
if (rowNumbers.Contains(panel.GetRow(c)))
c.Visible = true;
}
}
}