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Question(SOLVED) Error: The string was not recognized as a valid DateTime. There is an unknown word starting at index 0. Pin
samflex19-Oct-22 8:11
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AnswerRe: Error: The string was not recognized as a valid DateTime. There is an unknown word starting at index 0. Pin
Dave Kreskowiak19-Oct-22 12:26
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GeneralRe: Error: The string was not recognized as a valid DateTime. There is an unknown word starting at index 0. Pin
samflex20-Oct-22 7:03
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AnswerRe: (SOLVED) Error: The string was not recognized as a valid DateTime. There is an unknown word starting at index 0. Pin
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QuestionHow to Add Add Microsoft Extensions Hosting Manually in .Net Project Pin
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SuggestionRe: How to Add Add Microsoft Extensions Hosting Manually in .Net Project Pin
Richard Deeming19-Oct-22 0:15
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Question"The entry '*' has already been added." error in WebClient UploadString call Pin
Edwin Hon13-Oct-22 16:15
Edwin Hon13-Oct-22 16:15 
I have a ASP .NET MVC project, inside controller, I call a simple WebAPI using WebClient

e.g.

WebClient client = new WebClient();
client.Headers.Add("cache-control", "no-cache");
client.Headers.Add("accept-encoding", "gzip, deflate");
client.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
client.Headers.Add("Accept", "application/json");
client.Headers.Add("Authorization", "Basic xxxxxx");

var respond = client.UploadString(new Uri("https://xxxxxx/"), "POST", "xxxxxx");

there is an exception when call UploadString immediately with error
"The entry '*' has already been added." in webConfig.

If remove the line "<add address="*" maxconnection="500"/>" from webConfig, the
exception is gone. Same thing is also happen when using HttpClient and RestClient.

WebConfig
"...
<connectionManagement>
	<add address="*" maxconnection="500"/>
</connectionManagement>
..."

Do anyone know why it happen? Why does WebClient attempt to add the entry to configuration
during runtime and cause the error?

BTW, I have fixed the problem by remove the line from WebConfig, and put it to program StartUp

e.g.
System.Net.ServicePointManager.DefaultConnectionLimit = 500;

AnswerRe: "The entry '*' has already been added." error in WebClient UploadString call Pin
Richard Deeming14-Oct-22 2:55
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QuestionBlazor, styling dynamic data Pin
Wiep Corbier7-Oct-22 17:39
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AnswerRe: Blazor, styling dynamic data Pin
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SuggestionSort 2 Sheets and update on another Sheet with ole DB Pin
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Questionwebforms, modal, updatepanel, repeater and linkbutton and opens another modal Pin
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QuestionChart1.Series Pin
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Questiondocument.activeElement.id not working in safari Pin
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QuestionAuto reply chatbot? Pin
Nitin S13-Sep-22 21:18
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AnswerRe: Auto reply chatbot? Pin
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Questionvideo conference feature Pin
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