[CLOSED] Cannot deserialize JSON object into type 'System.Collections.Generic.Dictionary`2[System.String,System.String][]

Hi...

i have kept this code in Page_Load,when try to run this im getting Error:"Cannot deserialize JSON object into type 'System.Collections.Generic.Dictionary`2[System.String,System.String][]"

Code:

string r ="{ID:1,Name:Hi Rest}"; Dictionary<string, string>[] companies = JSON.Deserialize<Dictionary<string, string>[]>(r); StringBuilder sb = new StringBuilder(); foreach (Dictionary<string, string> row in companies) { foreach (KeyValuePair<string, string> keyValuePair in row) { sb.Append(keyValuePair.Key); if (keyValuePair.Key.ToString() == "ID") { txtID.Text = Convert.ToString(keyValuePair.Value); } else if (keyValuePair.Key.ToString() == "Name") { txtName.Text = Convert.ToString(keyValuePair.Value); } } }

Please solve my problem

Hi,

Let's consider this string

Code:

string r = "{ID:1,Name:Hi Rest}";

If you need array please use square brackets in json string - '[ array items ]'.

Also wrap string in apostrophes if there is any space characters - 'Hi Rest'.

Generally speaking, it would be best to use apostrophes even there is no space character - '1'.

So, in according to the Type that you chose

Code:

Dictionary<string, string>[]

string must look like this

Code:

string r = "[{ID:'1',Name:'Hi Rest'}]";

Quote:

Originally Posted by Daniil

Hi,

Let's consider this string

Code:

string r = "{ID:1,Name:Hi Rest}";

If you need array please use square brackets in json string - '[ array items ]'.

Also wrap string in apostrophes if there is any space characters - 'Hi Rest'.

Generally speaking, it would be best to use apostrophes even there is no space character - '1'.

So, in according to the Type that you chose

Code:

Dictionary<string, string>[]

string must look like this

Code:

string r = "[{ID:'1',Name:'Hi Rest'}]";

Hi, it is workin fine ..but i have One Dought..

Without using these "[]" we cannot deserilize

Any Alternative way is there.

If you need

Code:

Dictionary<string, string>[]

square brackets are required.

Well, without square brackets it will just, for example:

Code:

Dictionary<string, string>

Example

Code:

<%@ Page Language="C#" %> <%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %> <script runat="server"> protected void Page_Load(object sender, EventArgs e) { string r = "{ID:'1', Name:'Hi Rest'}"; Dictionary<string, string> company = JSON.Deserialize<Dictionary<string, string>>(r); foreach (KeyValuePair<string, string> keyValuePair in company) { if (keyValuePair.Key.ToString() == "ID") { TextField1.Text = Convert.ToString(keyValuePair.Value); } else if (keyValuePair.Key.ToString() == "Name") { TextField1.Text = Convert.ToString(keyValuePair.Value); } } } </script> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Ext.Net Example</title> </head> <body> <form runat="server"> <ext:ResourceManager runat="server" /> <ext:TextField ID="TextField1" runat="server" /> <ext:TextField ID="TextField2" runat="server" /> </form> </body> </html>

Quote:

Originally Posted by Daniil

If you need

Code:

Dictionary<string, string>[]

square brackets are required.

Well, without square brackets it will just, for example:

Code:

Dictionary<string, string>

Example

Code:

<%@ Page Language="C#" %> <%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %> <script runat="server"> protected void Page_Load(object sender, EventArgs e) { string r = "{ID:'1', Name:'Hi Rest'}"; Dictionary<string, string> company = JSON.Deserialize<Dictionary<string, string>>(r); foreach (KeyValuePair<string, string> keyValuePair in company) { if (keyValuePair.Key.ToString() == "ID") { TextField1.Text = Convert.ToString(keyValuePair.Value); } else if (keyValuePair.Key.ToString() == "Name") { TextField1.Text = Convert.ToString(keyValuePair.Value); } } } </script> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Ext.Net Example</title> </head> <body> <form runat="server"> <ext:ResourceManager runat="server" /> <ext:TextField ID="TextField1" runat="server" /> <ext:TextField ID="TextField2" runat="server" /> </form> </body> </html>

Hi,

Thank's for your reply. It is working fine