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Fix SqlNullValueException

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This commit is contained in:
frauseo 2020-05-26 21:18:56 +02:00
parent cd162d1ee6
commit 43aa400613
2 changed files with 24 additions and 16 deletions
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2
LoggingClient/LoggingClient/LoggingClient.csproj
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@ -5,7 +5,7 @@
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{2622C2FC-3522-4D6F-B021-F63A243E77F1}</ProjectGuid>
<OutputType>Library</OutputType>
<OutputType>WinExe</OutputType>
<RootNamespace>LoggingClient</RootNamespace>
<AssemblyName>LoggingClient</AssemblyName>
<TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>

38
LoggingClient/LoggingClient/ViewModel/LogViewModel.cs
View File

@ -10,7 +10,7 @@ using LoggingClient.ViewModel.Commands;
namespace LoggingClient.ViewModel
{
public class LogViewModel : INotifyPropertyChanged
public class LogViewModel : INotifyPropertyChanged
{
private string _txtConnectionString;
private string _enterPod;
@ -142,28 +142,36 @@ namespace LoggingClient.ViewModel
conn.Open();
using (var cmd = new MySqlCommand("SELECT id, pod, location, hostname, severity, timestamp, message FROM v_logentries ORDER BY timestamp", conn))
{
var reader = cmd.ExecuteReader();
while (reader.Read())
{
Logs.Add(new LogModel(
reader.GetInt32("id"),
reader.GetString("pod"),
reader.GetString("location"),
reader.GetString("hostname"),
reader.GetInt32("severity"),
reader.GetDateTime("timestamp"),
reader.GetString("message")
));
var reader = cmd.ExecuteReader();
while (reader.Read())
{
// ISDBNull Check because location can be NULL in Database
var location = "";
if (!reader.IsDBNull(reader.GetOrdinal("location")))
{
location = reader.GetString("location");
}
Logs.Add(new LogModel(
reader.GetInt32("id"),
reader.GetString("pod"),
location,
reader.GetString("hostname"),
reader.GetInt32("severity"),
reader.GetDateTime("timestamp"),
reader.GetString("message")
));
}
}
conn.Close();
}
}
catch (Exception ex)
{
//MessageBox.Show("Error occurred: " + ex.Message);
MessageBox.Show("Error occurred: " + ex.Message);
}
}
}
private void BtnLogClear_Click()
{
if (MySelectedItem == null) return;