I m new to c#.
I have a form with 20 labels on it with names from label1 to label20.
I am reading a text file using streamreader line-by-line.
Now I want to associate the text from each line to the labels already available on the form, i.e.
Line 1 to label1
Line 2 to label2
Line 3 to label3 and so on...
Any help is really appreciable.
Thanks in advance.
Sorry for my English.
This will return an array of strings (zero based) which you can play with the index to assign to any label you want.
string[] readFile = File.ReadAllLines(path);
For example
This is line 1
This is line 2
This is line 3
Returns
["This is line 1", "This is line 2", "This is line 3"]
So you can assign line 2 text to Label2 for example
Label2.Text = readFile[1];
EDIT:
private void MyForm(object sender, EventArgs e)
{
Label[] MyLabels = new Label[3];
MyLabels[0] = this.Label1;
MyLabels[1] = this.Label2;
MyLabels[2] = this.Label3;
}
Then you could do what you said
for (int i = 0; i < readFile.Length; i++)
{
MyLabels[i].Text = readFile[i];
}
Related
I use iText 7.0.4.0 with my .net application to generate pdfs. But inner tables overflow when the text is long.
Outer table has 10 columns with green border and seems it has rendered fine as per the image below. Each Outer table cell contains one table with one cell inside it.But Inner Table cell has overflown when the paragraph text is large.
I use iText in a large Forms building product. Hence I've recreated the issue with simple scenario and the code is given below. Please note that the number of columns are not fixed in real usage.
Could anyone please show me the correct path to achieve this?
Here is the C# Code
private Table OuterTable()
{
var columns = GetTableColumnWidth(10);
var outerTable = new Table(columns, true);
outerTable.SetWidthPercent(100);
for (int index = 0; index < columns.Length; index++)
{
Cell outerTableCell = new Cell();
Table innerTable = new Table(new float[] { 100 });
innerTable.SetWidthPercent(100);
Cell innerTableCell = new Cell();
Paragraph paragraph = new Paragraph("ABCDEFGHIJKL").AddStyle(_fieldValueStyle);
innerTableCell.Add(paragraph);
innerTable.AddCell(innerTableCell);
outerTableCell.Add(innerTable);
outerTable.AddCell(outerTableCell);
innerTableCell.SetBorder(new SolidBorder(Color.RED, 2));
innerTableCell.SetBorderRight(new SolidBorder(Color.BLUE, 2));
outerTableCell.SetBorder(new SolidBorder(Color.GREEN, 2));
}
return outerTable;
}
Thanks mkl for spending your valuable time. I solved my issue with your idea of 'no inner tables'. This is not how to solve the issue of nested tables mentioned in the question but another way of achieving the result.
I've used "\n" in the paragraph to achieve what I want. Here is the output and the code.
private Table OuterTable()
{
var columns = GetTableColumnWidth(10);
var outerTable = new Table(columns, true);
outerTable.SetWidthPercent(100);
for (int index = 0; index < columns.Length; index++)
{
Cell outerTableCell = new Cell();
outerTableCell.Add(GetContent());
outerTable.AddCell(outerTableCell);
}
return outerTable;
}
private Paragraph GetContent()
{
int maxIndex = 3;
Paragraph paragraph = new Paragraph();
for (int index = 0; index < maxIndex; index++)
{
paragraph.Add(index + " - ABCDEFGHIJKL \n").AddStyle(_fieldValueStyle);
}
return paragraph;
}
I have similar to the link below problem.
EPPlus chart from list of single excel cells. How?
I tried the code but it shows it twice in the chart. For example:
This code show excel chart -> select data-> horizontal(category) axis labels tab you show 100,100,300,600 write. What is the reason for this? The chart is written twice the first data I did not find a solution to the problem.
I think you just discovered a bug with EPPlus. Shame on me for not noticing that with that post you reference. It seems that when using the Excel union range selector (the cell names separated by commas) the iterator for the ExcelRange class returns a double reference to the first cell, in this case B2.
A work around would be to use the other overload for Series.Add which will take two string ranges. Here is a unit test that show the problem and the workaround:
[TestMethod]
public void Chart_From_Cell_Union_Selector_Bug_Test()
{
var existingFile = new FileInfo(#"c:\temp\Chart_From_Cell_Union_Selector_Bug_Test.xlsx");
if (existingFile.Exists)
existingFile.Delete();
using (var pck = new ExcelPackage(existingFile))
{
var myWorkSheet = pck.Workbook.Worksheets.Add("Content");
var ExcelWorksheet = pck.Workbook.Worksheets.Add("Chart");
//Some data
myWorkSheet.Cells["A1"].Value = "A";
myWorkSheet.Cells["A2"].Value = 100; myWorkSheet.Cells["A3"].Value = 400; myWorkSheet.Cells["A4"].Value = 200; myWorkSheet.Cells["A5"].Value = 300; myWorkSheet.Cells["A6"].Value = 600; myWorkSheet.Cells["A7"].Value = 500;
myWorkSheet.Cells["B1"].Value = "B";
myWorkSheet.Cells["B2"].Value = 300; myWorkSheet.Cells["B3"].Value = 200; myWorkSheet.Cells["B4"].Value = 1000; myWorkSheet.Cells["B5"].Value = 600; myWorkSheet.Cells["B6"].Value = 500; myWorkSheet.Cells["B7"].Value = 200;
//Pie chart shows with EXTRA B2 entry due to problem with ExcelRange Enumerator
ExcelRange values = myWorkSheet.Cells["B2,B4,B6"]; //when the iterator is evaluated it will return the first cell twice: "B2,B2,B4,B6"
ExcelRange xvalues = myWorkSheet.Cells["A2,A4,A6"]; //when the iterator is evaluated it will return the first cell twice: "A2,A2,A4,A6"
var chartBug = ExcelWorksheet.Drawings.AddChart("Chart BAD", eChartType.Pie);
chartBug.Series.Add(values, xvalues);
chartBug.Title.Text = "Using ExcelRange";
//Pie chart shows correctly when using string addresses and avoiding ExcelRange
var chartGood = ExcelWorksheet.Drawings.AddChart("Chart GOOD", eChartType.Pie);
chartGood.SetPosition(10, 0, 0, 0);
chartGood.Series.Add("Content!B2,Content!B4,Content!B6", "Content!A2,Content!A4,Content!A6");
chartGood.Title.Text = "Using String References";
pck.Save();
}
}
Here is the output:
I will post it as an issue on their codeplex page to see if they can get it fixed for the next release.
By the help of some very kind community members here I managed to programatically create a function to replace text inside content controls in a Word document using open xml. After the document is generated it removes the formatting of the text after I replace the text.
Any ideas on how I can still keep the formatting in word and remove the content control tags ?
This is my code:
using (var wordDoc = WordprocessingDocument.Open(mem, true))
{
var mainPart = wordDoc.MainDocumentPart;
ReplaceTags(mainPart, "FirstName", _firstName);
ReplaceTags(mainPart, "LastName", _lastName);
ReplaceTags(mainPart, "WorkPhoe", _workPhone);
ReplaceTags(mainPart, "JobTitle", _jobTitle);
mainPart.Document.Save();
SaveFile(mem);
}
private static void ReplaceTags(MainDocumentPart mainPart, string tagName, string tagValue)
{
//grab all the tag fields
IEnumerable<SdtBlock> tagFields = mainPart.Document.Body.Descendants<SdtBlock>().Where
(r => r.SdtProperties.GetFirstChild<Tag>().Val == tagName);
foreach (var field in tagFields)
{
//remove all paragraphs from the content block
field.SdtContentBlock.RemoveAllChildren<Paragraph>();
//create a new paragraph containing a run and a text element
Paragraph newParagraph = new Paragraph();
Run newRun = new Run();
Text newText = new Text(tagValue);
newRun.Append(newText);
newParagraph.Append(newRun);
//add the new paragraph to the content block
field.SdtContentBlock.Append(newParagraph);
}
}
Keeping the style is a tricky problem as there could be more than one style applied to the text you are trying to replace. What should you do in that scenario?
Assuming a simple case of one style (but potentially over many Paragraphs, Runs and Texts) you could keep the first Text element you come across per SdtBlock and place your required value in that element then delete any further Text elements from the SdtBlock. The formatting from the first Text element will then be maintained. Obviously you can apply this theory to any of the Text blocks; you don't have to necessarily use the first. The following code should show what I mean:
private static void ReplaceTags(MainDocumentPart mainPart, string tagName, string tagValue)
{
IEnumerable<SdtBlock> tagFields = mainPart.Document.Body.Descendants<SdtBlock>().Where
(r => r.SdtProperties.GetFirstChild<Tag>().Val == tagName);
foreach (var field in tagFields)
{
IEnumerable<Text> texts = field.SdtContentBlock.Descendants<Text>();
for (int i = 0; i < texts.Count(); i++)
{
Text text = texts.ElementAt(i);
if (i == 0)
{
text.Text = tagValue;
}
else
{
text.Remove();
}
}
}
}
i have created web application and using textbox and it can contains multiple line of data becoz i have set its textmode property is multiline.
my problem is that i want to check each line contain data or not so i using count variable which count how many line contain data.
string[] data;
int cntindex;
data = txt_invoicenumber.Text.ToString().Split("\n".ToCharArray());
cntindex = data.Length;
for (j = 0; j < cntindex; j++)
{
if (data[j]!="")
{
inv_count++;
}
}
Its not working.
Please help me.
I guess this is because new line is \r\n so there is a '\r' also on empty lines.
Change the if statement to:
if (data[j].Trim().Length != 0)
Firstly, You don't need to ToString() the .Text property as it is already a string.
try this
string[] lines = txt_invoicenumber.Text.Split(Environment.NewLine);
int lineCount = 0;
foreach(string line in lines)
{
if(!string.IsNullOrEmpty(line))
{
lineCount ++;
this.ProcessLine(line);
}
}
var lb = new String[] { "\r\n" };
var lines = txt_invoicenumber.Text.Split(lb, StringSplitOptions.None).Length;
This will count empty lines too. If you don't want to count empty lines, use the StringSplitOptions.RemoveEmptyEntries value.
Don't count 100% on "\r\n" if you have little control over your environment though.
This is the answer I came up with.
String[] lines = TextBox1.Text.Split(new Char[] { '\r', '\n' },
StringSplitOptions.RemoveEmptyEntries);
Int32 validLineCount = lines.Length;
.This is how my data looks: name: abcsurname: abctel:1234 and I want it to look like:name: abc and surname: abc should go in the next line.
public void SeparateData()
{
//read file
StreamReader sr = new StreamReader("myTextFile.txt");
//string to hold line
string myline;
myline = sr.ReadLine();
while ((myline = sr.ReadLine()) != null)
{
string[] lines = Regex.Split(myline, " ");
foreach (string s in lines)
{
using (StreamWriter sw = new StreamWriter("myTextFile.txt"))
sw.WriteLine(lines);
}
}
}
Well, you don't need regex to do a string split on a space, but I don't that is going to get you want you want either way. I am assuming that "abc" stands in for actual values of varying length?
I think you just need to pull out your regex book and split up the string and rewrite it.
e.g. '(name: )(\w*?)(surname: )(\w*?)(tel: )(\d*)' and then just re-assemble and re-write the line using the capturing groups.
I think what you have will give you:
name:
abcsurname:
abctel:
1234