Is it possible to set IF case using the images present in the datagridviewimagecolumn?
Example:
If current row image = "Red.png"... show error msg
If current row image = "Green.png"... Insert to database
Thank You!
You can achieve this in this fashion
Need to assign a Text to identify the image you are displaying in the DataGridViewImageCell, while adding the image just set the description for the cell
(dataGridView1[2, 2] as DataGridViewImageCell).Description = "Red";// Or Green
Then when you loop through just check for the description of the imagecell and do your stuff
foreach (DataGridViewRow row in dataGridView1.Rows)
{
if(row.Cells[2] is DataGridViewImageCell)
{
if((row.Cells[2] as DataGridViewImageCell).Description == "Red")
{ // your stuff}
}
}
Related
I am trying to position the addressTextFrame above my table and for some reason appears underneath it.
public void DefineInvoice(Document document)
{
Section section = document.AddSection();
// create the text frame for address
TextFrame addressFrame = section.AddTextFrame();
addressFrame.Height = "3.0cm";
addressFrame.Width = "7.0cm";
addressFrame.Left = ShapePosition.Left;
addressFrame.RelativeHorizontal = RelativeHorizontal.Margin;
addressFrame.Top = "5.0cm";
addressFrame.RelativeVertical = RelativeVertical.Page;
//fill in address for text frame
Paragraph paragraph = addressFrame.AddParagraph();
paragraph.AddText("Nieto LLC");
paragraph.AddLineBreak();
paragraph.AddText("6110 Google Drive");
paragraph.AddLineBreak();
paragraph.AddText("Houston, TX 77309");
paragraph.AddLineBreak();
paragraph.AddText("P: 281-890-5899");
//define table
Table table = section.AddTable();
table.Borders.Width = 0.75;
}
Here is what it looks like:
I am learning as I go having never worked with this new technology nor C#. I thought LastSection() puts things last but I get the same result when doing it.
You set the address at the absolute vertical position of 5 cm. I assume that address and table would overlap if there were more items (rows) in the table.
If you want to have the address above the table, do not set an absolute position for the address, just let it float in the main body text.
After I set a column's WrapText=true, I want to see what the new height of the row will be (i.e. if the text wraps, for how many lines). It appears that the Height property of a row is not updated.
ExcelPackage pkg = new ExcelPackage();
ExcelWorksheet sheet = pkg.Workbook.Worksheets.Add("Test");
// height is 15.0
double heightBefore = sheet.Row(1).Height;
sheet.Cells[1, 1].Value = "Now is the time for all good men to come to the aid of their country";
ExcelColumn col = sheet.Column(1);
// this will resize the width to 60
col.AutoFit();
if (col.Width > 50)
{
col.Width = 50;
// this is just a style property, and doesn't actually execute any recalculations
col.Style.WrapText = true;
}
// so this is still 15.0. How do I get it to compute what the size will be?
double heightAfter = sheet.Row(1).Height;
// open the xls, and the height is 30.0
pkg.SaveAs(new System.IO.FileInfo("text.xlsx"));
In fact, a search for the Height property (or the underlying field _height) shows that it is only set by the property setter, and does not ever seem to be set based on anything else (like content in the row).
Any ideas on how I can get a refreshed Height for a row?
Thanks
The general pattern I've noticed with EPPlus is that it generates the framework of the document with the minimum amount of information necessary. Then, when you open the file, Excel fills out the remaining XML structure, which is why you always have to save the file after opening an EPPlus generated document.
For your question, I'm assuming that Excel is updating the row heights after you open the Excel file so EPPlus would not have the updated row height information. I'm not absolutely certain that the library doesn't support this, but like you I was unable to find a way to get the updated values.
One workaround however could be to just calculate what the value would be since you know your text length and column width:
ExcelPackage pkg = new ExcelPackage();
ExcelWorksheet sheet = pkg.Workbook.Worksheets.Add("Test");
// height is 15.0
double heightBefore = sheet.Row(1).Height;
var someText = "Now is the time for all good men to come to the aid of their country. Typewriters were once ground-breaking machines.";
sheet.Cells[1, 1].Value = someText;
ExcelColumn col = sheet.Column(1);
ExcelRow row = sheet.Row(1);
// this will resize the width to 60
col.AutoFit();
if (col.Width > 50)
{
col.Width = 50;
// this is just a style property, and doesn't actually execute any recalculations
col.Style.WrapText = true;
}
// calculate the approximate row height and set the value;
var lineCount = GetLineCount(someText, (int)col.Width);
row.Height = heightBefore * lineCount;
// open the xls, and the height is 45.0
pkg.SaveAs(new System.IO.FileInfo("text.xlsx"));
Here's the method to calculate the number of lines:
private int GetLineCount(String text, int columnWidth)
{
var lineCount = 1;
var textPosition = 0;
while (textPosition <= text.Length)
{
textPosition = Math.Min(textPosition + columnWidth, text.Length);
if (textPosition == text.Length)
break;
if (text[textPosition - 1] == ' ' || text[textPosition] == ' ')
{
lineCount++;
textPosition++;
}
else
{
textPosition = text.LastIndexOf(' ', textPosition) + 1;
var nextSpaceIndex = text.IndexOf(' ', textPosition);
if (nextSpaceIndex - textPosition >= columnWidth)
{
lineCount += (nextSpaceIndex - textPosition) / columnWidth;
textPosition = textPosition + columnWidth;
}
else
lineCount++;
}
}
return lineCount;
}
One thing to keep in mind is that Excel has a max row height of 409.5 so you'll want to make sure your column width is not so narrow that you'll reach this limit.
Also, another thing I noticed is that the column widths that you manually set with EPPlus don't actually set the columns to the expected value. For example, if you set your column width to 50, you'll notice that the actual column width is set to 49.29 so you may want to factor that in as well.
I know it is possible to give a cell a name, as answered in the following question:
EPPLUS - Rename Cell
How can you see if a given cell/range has a name and retrieve that name?
There is a property i.e. IsName that can determine the range has a name or not. But it seems not to work properly. I suppose you to query the named cells collection i.e. sheet.Names or book.Names (they contains all the names in the sheet or the book). Then compare FullAddressAbsolute to the given cell to get the named cell you want.
var cell = sheet.Cells["C1"]; // cell you wanna find the name
ExcelNamedRange namedCell = null;
foreach (var item in book.Names)
{
if (item.FullAddressAbsolute.Equals(cell.FullAddressAbsolute))
{
namedCell = item;
break; // if you don't wanna find all
}
}
// if (namedCell == null) --> NOT FOUND
// else
// namedCell.Name : contains the name you wanna retrieve
LINQ can also be used instead of the loop:
namedCell = book.Names.Where(item => item.FullAddressAbsolute.Equals(cell.FullAddressAbsolute)).FirstOrDefault();
How can I add some text on top of a bar in a chart.
This is the code I have to add the bar:
var color = ColorTranslator.FromHtml(row.Colour);
var barItem = graphPane.AddBar(row.Propensity.ToString(), null, Ys.ToArray(), color);
Thank you
Here is a quick example using TextObj to simply add labels to each bar.
GraphPane myPane = zedGraphControl1.GraphPane;
double[] y = { 100, 50, 75, 125 };
BarItem myBar = myPane.AddBar("Data", null, y, Color.Red);
for (int i = 0; i < myBar.Points.Count; i++)
{
TextObj barLabel = new TextObj(myBar.Points[i].Y.ToString(), myBar.Points[i].X, myBar.Points[i].Y + 5);
barLabel.FontSpec.Border.IsVisible = false;
myPane.GraphObjList.Add(barLabel);
}
myBar.Label.IsVisible = true;
zedGraphControl1.AxisChange();
zedGraphControl1.Invalidate();
Of course this just uses the value of the data as the label. If you wanted to use custom labels, you could create a string array or list and use that inside the loop.
Here are some ZedGraph references:
Introduction and examples: http://www.codeproject.com/KB/graphics/zedgraph.aspx
Source code documentation: http://zedgraph.sourceforge.net/documentation/default.html
You need to define AlignH and AlignV in your text object:
TextObj textLabel = new TextObj(value.ToString(), positionX, value, CoordType.AxisXYScale, AlignH.Center, AlignV.Top);
AlignV define the position of your value on the bar.
Providing you want the label text to match the value of each bar, then you can do it with a single line of code:
BarItem.CreateBarLabels(graphPane, false, "F0");
Note that the 3rd parameter is a double.ToString format. e.g. "F0" = 12, "F2" = 12.34
However, if you want any flexibity with it then this solution is not ideal. It also doesn't work very well if you have a stacked bar chart, because having any 0 value data will cause labels to overlap and look horrific
I have a textArea and a list. When a user double clicks a list item, the label of the selected item should be inserted into the textarea. When a text is selected in the textArea, it should be replaced, otherwise the text just needs to be inserted into the existing text at the caret point.
I've managed to get the text and everything, I just can't manage to insert it at the caret point. Does anyone know how to do this?
It's actually not JavaScript but Adobe Flex 3. Thanks for the help though, it did push me in the right direction. This is the way its done in Flex 3:
var caretStart:int = textArea.selectionBeginIndex;
var caretEnd:int = textArea.selectionEndIndex;
textArea.text = textArea.text.substring(0,caretStart)
+ newText
+ textArea.text.substr(caretEnd);
The accepted answer works great if you do not have existing HTML formatting. In my case, I inserted a new button into the editor that the user could click to put in a key word. I kept losing all HTML formatting until I dug around in the actual class and sided with a TextRange object:
public function keyWord_Click(event:Event) : void
{
var caretStart:int = txtEditor.textArea.selectionBeginIndex;
var caretEnd:int = txtEditor.textArea.selectionEndIndex;
var newText : String = "[[[KEYWORD]]]";
var tf:TextRange = new TextRange(txtEditor,true,caretStart,caretEnd);
tf.text = newText;
}
The nice thing about this approach is, you can also apply conditional formatting to that TextRange object as needed.
You can use txtarea.selectionStart and txtarea.selectionEnd to get Selected text position.
After that, You delete txt and add new selected text.
I don't known much about Javascript, so I wrote it for U.
You can search on google with keywords:
"Javascript Selected Text TextArea"
"Javascript add text at position"
Sample code:
function insertAtCursor(myField, myValue) {
//IE support
if (document.selection) {
myField.focus();
sel = document.selection.createRange();
sel.text = myValue;
}
//MOZILLA/NETSCAPE support
else if (myField.selectionStart || myField.selectionStart == '0') {
var startPos = myField.selectionStart;
var endPos = myField.selectionEnd;
myField.value = myField.value.substring(0, startPos)
+ myValue
+ myField.value.substring(endPos, myField.value.length);
} else {
myField.value += myValue;
}
caretPos = doGetCaretPosition(myField);
alert(caretPos);
setCaretPosition(myField,caretPos-3);
}