C # multi-line string display/text line feed using textbox as an Example

Method 1: textbox is used as an example.

①: Set the textbox attribute Multiline to true first.

②: Organize the display string: FistLine (the character to be displayed in the first line), SecondLine (the character to be displayed in the second line ),....... , Line n characters

③ Textbox. text = "FistLine" + System. Environment. NewLine + "SecondLine" + System. Environment. NewLine + .... + "Row N" + System. Environment. NewLine

When you see the above Code, you may think that the line break we generally use is not "\ r \ n "?

You will think of this method: textbox. text = "FistLine" + "\ r \ n" + "SecondLine" + "\ r \ n" + .... + "Row N" + "\ r \ n"

This format may not cause errors during running, but may occur in Linux or other systems.

Textbox Effect of WinForm:

Textbox Example 1 ("\ r \ n"): code:

Copy codeThe Code is as follows: // <summary>
/// Fill the result in the member reservation box
/// </Summary>
/// <Param name = "dt"> </param>
Private void BindGuestOrder (DataTable dt)
{
Int intRowsCount;
IntRowsCount = dt. Rows. Count;
String [] strName = new string [intRowsCount];
String [] strPhone = new string [intRowsCount];
String [] strRoom = new string [intRowsCount];
String [] strNum = new string [intRowsCount];
String [] strTime = new string [intRowsCount];
For (int intRows = 0; intRows <intRowsCount; intRows ++)
{
StrName [intRows] = dt. Rows [intRows] ["GuestName"]. ToString ();
StrPhone [intRows] = dt. Rows [intRows] ["LinkPhone"]. ToString ();
StrRoom [intRows] = dt. Rows [intRows] ["RoomName"]. ToString ();
StrNum [intRows] = dt. Rows [intRows] ["BookNo"]. ToString ();
StrTime [intRows] = dt. Rows [intRows] ["DineTime"]. ToString ();
AddMsgToTextBox ("guest name:" + strName [intRows]);
AddMsgToTextBox ("guest phone:" + strPhone [intRows]);
AddMsgToTextBox ("booking room:" + strRoom [intRows]);
AddMsgToTextBox ("reservation number:" + strNum [intRows]);
AddMsgToTextBox ("scheduled time:" + strTime [intRows]);
}
}

Private int intCounts = 1;
/// <Summary>
/// Display multiple lines of text
/// </Summary>
/// <Param name = "s"> </param>
Public void AddMsgToTextBox (string s)
{
Int intCount1;
IntCount1 = intCounts/5;
CheckTextBox (intCount1 );
TxtVIPAdvanceOrder. Text + = "\ r \ n" + s;
If (intCounts % 5 = 0)
{
TxtVIPAdvanceOrder. Text + = "\ r \ n ";
}
IntCounts ++;
}

/// <Summary>
/// Set the line feed
/// </Summary>
Protected void CheckTextBox (int intCount1)
{
Int iLines = 5*(intCount1 + 2); // The number of rows to display.

String stxt = txtVIPAdvanceOrder. Text;
String [] s = stxt. Split ('\ n ');
If (s. Length <iLines)
Return;
TxtVIPAdvanceOrder. Text = "";
For (int I = 1; I <s. Length; I ++)
{
TxtVIPAdvanceOrder. Text + = s [I] + "\ r \ n ";
}
Stxt = txtVIPAdvanceOrder. Text;
If (stxt! = "")
TxtVIPAdvanceOrder. Text = stxt. Substring (0, stxt. Length-1 );
}

Example 2: Effect (dev control (Memoedit )):

Source code:

Copy codeThe Code is as follows: // <summary>
/// Fill the result in the member reservation box
/// </Summary>
/// <Param name = "dt"> reserved member information table </param>
Private void BindGuestOrder (DataTable vardt)
{
MemGusetInfo. Text = "";
Int tmpRowsCount;
TmpRowsCount = vardt. Rows. Count;
String [] tmpstrName = new string [tmpRowsCount];
String [] tmpstrPhone = new string [tmpRowsCount];
String [] tmpstrRoom = new string [tmpRowsCount];
String [] tmpstrNum = new string [tmpRowsCount];
String [] tmpstrTime = new string [tmpRowsCount];
For (int I = 0; I <tmpRowsCount; I ++)
{
TmpstrName [I] = vardt. Rows [I] ["GuestName"]. ToString ();
TmpstrPhone [I] = vardt. Rows [I] ["LinkPhone"]. ToString ();
TmpstrRoom [I] = vardt. Rows [I] ["RoomName"]. ToString ();
TmpstrNum [I] = vardt. Rows [I] ["BookNo"]. ToString ();
TmpstrTime [I] = vardt. Rows [I] ["DineTime"]. ToString ();
String tmpstr1 = "guest name:" + tmpstrName [I] + System. Environment. NewLine;
String tmpstr2 = "guest phone:" + tmpstrPhone [I] + System. Environment. NewLine;
String tmpstr3 = "reserved room:" + tmpstrRoom [I] + System. Environment. NewLine;
String tmpstr4 = "reservation number:" + tmpstrNum [I] + System. Environment. NewLine;
String tmpstr5 = "reservation time:" + tmpstrTime [I] + System. Environment. NewLine;
MemGusetInfo. text + = string. format ("{0} {1} {2} {3} {4}", tmpstr1, tmpstr2, tmpstr3, tmpstr4, tmpstr5) + System. environment. newLine;
}
}

Now DEV controls are widely used by many people: So I got a DEV example. DEV has a special text box control (Memoedit), which works in the same way and achieves similar results.