Web Forms :: Modify And Delete Items From JSON File In C#
Jun 16, 2015
I have json file Users.json and I want read json object from file and store in to database one by one. how to delete json object when it stored in database. when object not save in database then it not delete from file. Need to know about delete json object.
using (FileStream fs = new FileStream("user.json", FileMode.Open, FileAccess.Read))
using (StreamReader sr = new StreamReader(fs))
using (JsonTextReader reader = new JsonTextReader(sr))
[Code].....
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Dec 29, 2010
I have a text file named gisQuery129.json that is created using Json.NET - [URL] There is an example on how to create a JSON file and I have done that successfully, but I want to read the file on a page load event and add the values to .NET textbox controls for input values in a query. The created file looks like the following:
{
"myData": {
"randomNumber": "129",
"Application": "MyMapApp",
"FeatureId": "ALL",
"Feature": "ALL",
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}
}
I want to read the data in the above sample JSON data and then populate my textboxes something like this:
txtRandParam.text = "129"
txtApplication.text = "MyMapApp" and three more text boxes after that.
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Feb 25, 2011
Using SQL and C#. I have a gridview with a template field. I need to modify the some items in the gridview when the user selects a given record and store the values back in the database. ProjectID is the unique key in the database.Gridview is done as a table. How can I do it? Here is my grid view implementation.
[Code]....
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Mar 30, 2010
I'm making my first professional website. I don't know what goes on when developing websites, so my question here could be incorrect. Anyway, I want a way to have an administrator login to my website and have the ability to modify, edit, delete, or add whatever he wants on the fly. How would I do that?! I really don't think that whenever the people I'm making the website for would need changes or adding new pages would call me to do that for them! So, I must provide them with their own means of administrating their own site after I'm done with it.
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Jan 28, 2010
a DropDownList bound to a table
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Sep 26, 2010
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Aug 20, 2010
In my orginal post i asked the question to handle this within the .Net side.
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You can find the current code in my original post here:
[URL]
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Jan 5, 2011
I would like to find a way to read a txt file (in my case delimited by ¤). I need to change the order of the columns and also add and remove some columns. My output file should be a txt file delmited by ;.
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This is my code for now:
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Jan 14, 2011
I want to delete the items in db using linq to sql below is my code
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Aug 11, 2010
I try to use the jquery + json to get all elements in form and build a JSON var to post in a ASP.NET MVC method.
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It method get all fields in a form and build a JSON, but it dont put JSON inside JSON.
Example:
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Feb 26, 2013
How to fetch, insert, delete and modify the data in gridview...
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May 20, 2010
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Feb 28, 2011
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private void InsertXMLElement()
{
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{
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Jun 28, 2010
im doing an album page just like facebook album
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Dec 23, 2010
Spent ages trying to get this right but am struggling now. I have a list box and textbox, I can happily enter Email addresses into the textbox which are saved into a text file and populated in a list box. I want to be able to select a list item and delete it, along with it's record in my text file. I was going to do it by on the delete list item / button click, it delete's the text file and then writes and a new one with the remaining list items in the list box. Unfortunately it's re-writing the file but either not including the remaining list items. Here's some examples of what I've changed and what populates the text file:
StreamWriter1.WriteLine(Addresses.Items); - System.Web.UI.WebControls.ListItemCollection
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where I've gone wrong? I've not actually slept since I woke up at 8am yesterday. It's now 11am... today.
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Dec 24, 2010
I m using multiple sitemaps in my website. The providers are defined in web.config file as:
[Code]....
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Dim currentNode
As
SiteMapNode =
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Jun 26, 2010
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Jul 3, 2010
I am using JQuery & JSON (POST) to call webmethod. However I can call only webmethod located at aspx file but not in asmx file Below are sample codes
CustomValidate.asmx
Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.ComponentModel
Public Class CustomValidate
Inherits System.Web.Services.WebService
'ACCESS VIA JSON
<System.Web.Services.WebMethod()> _
Public Shared Function AJAX_Test(ByVal date1) As Boolean...
Return True
End Function
End Class
Javascript: JQuery JSON
function isDates(source, arguments) {
var isValidDate;
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type: "POST",
contentType: "application/json; charset=utf-8",
url: "CustomValidate.asmx/AJAX_Test",
data: '{date1: "' + arguments.Value + '"}',
dataType: "json",
async: false,
success: function(result) {
isValidDate = result;
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error: function(httpRequest, textStatus, errorThrown) {
alert("status=" + textStatus + ",error=" + errorThrown);
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});
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}
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Jul 25, 2013
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Feb 12, 2011
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Jan 19, 2011
I have been trying to overcome the well know issue of importing a csv file, nut ignoring the comma's within the quotes. Not every field has quotes, and not every record has comma's withing the quotes. After spending ages looking at various samples and arguments, Im still baffled. I have below a qiuck sample of a file ( we can not change the file at all ) , what i want to get out of it, and the the procedure i am currently working with. Can anyone show and explain how to modify my sub to get the desired results
"Smith, John", "125 My Street ","MY1 25Q", 135.00
"Jones,Fred","Flat 1, 139 Hight Street", "UB8 8UU",798.00
(0) Smith,John
(1) 125 My Street
(2) MY1 25Q
(3) 135.00
(0) Jones,Fred
(1) Flat 1, 139 Hight Street
(2) UB8 8UU
(3) 798.00
[Code]....
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Feb 8, 2010
I want to add the new tables to dbml file dynamically from another database
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