How to show string value with comma in C#

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I am running a query which will give a amount as string and now i need to show the string with comma seperators when population in the grid view and in the text box.

this is my code

when i add .tostring("N") it is throwing error kindly guide

and i have no clue how to show it with commas in grid view

What I have tried:

C#

txtbudamt.Text = drContract["Budget_Amount"].ToString();

Posted 28-Oct-20 5:32am

Member 13998042

Updated 23-Dec-20 19:01pm

PIEBALDconsult

v2

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CHill60 28-Oct-20 11:54am

Firstly, if an error is thrown it is helpful to share with us exactly what that error is.
What is drContract?
Does it have an element "Budget_Amount"?

Member 13998042 28-Oct-20 12:40pm

i am really sorry , i came over that error , now i need to show a string value (1000000.00) the decimal will stored like a string in the db, i need to show this string with comma separator while showing in grid view

CHill60 29-Oct-20 5:43am

Don't store decimals as strings, then you can use standard formatting techniques

Jo_vb.net 28-Oct-20 16:54pm

This link may help:
https://docs.microsoft.com/en-us/dotnet/api/system.globalization.numberformatinfo.numberdecimalseparator?redirectedfrom=MSDN&view=netcore-3.1#System_Globalization_NumberFormatInfo_NumberDecimalSeparator

BillWoodruff 28-Oct-20 19:05pm

show a clear example of the string you want to convert, and an example of how you want that string to be formatted. the commas go where ?

j snooze 29-Oct-20 17:54pm

Although probably inefficient you could probably convert to a double then get your number string like this.

Convert.ToDouble(drContract["Budget_Amount"]).ToString("N");

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qwertyme · Answer 1 · 2020-12-23T19:01:00

Try Formatting the Data using a StringBuilder to concat your string data and commas or String.Format something like the given solutions below:

1.
StringBuilder strData = new StringBuilder();
txtbudamt.Text = strData.Append(Convert.ToString(drContract["Budget_Amount"]) + ",").ToString();

2.
txtbudamt.Text = drContract["Budget_Amount"].ToString().Format("ExpressionFormat");