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Error :(System.Web.UI.HtmlControls.HtmlIframe) is not compatible with the type of control (System.Web.UI.HtmlControls.HtmlGenericControl) in VS2017


Reason for the above error is I have my project in .NET framework 3.5 and I update it to .NET framework 4.5,

Solution for the above error is:
We need to change the *.designer.cs file reference from:

System.Web.UI.HtmlControls.HtmlIframe

to

System.Web.UI.HtmlControls.HtmlGenericControl

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Categories: ASP.NET

MySQL : The user specified as a definer (‘root’@’%’) does not exist


This error occurs when exporting views/triggers/procedures from one database or server to another as the user that created that object no longer exists.

So here are the solutions:

  • Change DEFINERCreate the missing user
  • Create the missing user

or simply run following query

grant all on *.* to ‘root’@’%’ identified by ‘password’ with grant option;

Hope it helps.

Categories: ASP.NET

MySQL : The host localhost does not support SSL connections


When I moved database MySql.Data 7.0.7 to 8.0.8. I got following error

The host localhost does not support SSL connections.

So, here is the solution for this error ,Just add SslMode=none in connection string

server=localhost;user id=roor;password=xyz;persistsecurityinfo=True;port=123;database=TestDB; SslMode=none

Hope it helps !

Categories: ASP.NET, Sql Server

How to Add space and increase width of Morris.Js Bar?


There are two properties of Morris.Js bar we can use to achieve this
1) barGap
2) barSizeRatio

barGap is an integer that sets the space between bars in a single bar group.
Default is 3.
Increase this value to space them further, decrease it to bring them closer.

barSizeRatio is the proportion of the width of the entire graph given to bars. Defaults to 0.75.
Increase the number closer to 1 to make the bars wider, if its =1 the bars will take up the entire graph, if its > 1 bars will overlap.

Here is an example of code

Morris.Bar({
barGap:4,
barSizeRatio:0.55,
element: ‘bar-chart’,
data: [
{ y: ‘Apr’, a: 75, b: 60, c: 5, d: 50 },
{ y: ‘May’, a: 180, b: 220, c: 140, d: 160 },
{ y: ‘June’, a: 420, b: 340, c: 350, d: 270 }
],
xkey: ‘y’,
ykeys: [‘a’, ‘b’, ‘c’, ‘d’],
labels: [‘A’, ‘B’, ‘C’, ‘D’],
barColors: [‘#0B62A4′,’#f75b68′,’#4DA74D’,’#646464′],
hideHover: ‘auto’
});

Hope it helps!

Categories: ASP.NET Tags: , , ,

How to fix function is ambiguous in the namespace ‘system’ compiler error


When you are upgrading your project framework its possible that old version of DLL reference still exists , to remove that follow the below steps

-Open Object Explorer in Visual Studio
-Find that function
-Find the function/dll which has old reference and delete it

Hope it helps!

Categories: ASP.NET

Call Repeater ItemCommand event manually from outside the repeater

February 6, 2018 Leave a comment

Following is the code to call repeater item command event manually

Private Sub btnTest_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnTest.Click

For i = 0 To rptPlayers.Items.Count – 1

Dim tItem As RepeaterItem = rptPlayers.Items(i)

Dim tButton As ImageButton = ptPlayers.Items(i).FindControl(“imgAdd”)

Dim tEvents As New System.Web.UI.WebControls.CommandEventArgs(tButton.CommandName, tButton.CommandArgument)

Dim rpt As New RepeaterCommandEventArgs(tItem, tButton, tEvents)

rptPlayers_ItemCommand(tButton, rpt)

Next

End Sub

Categories: ASP.NET

Telerik ORM : Row not found: GenericOID@ OptimisticVerificationException

January 12, 2018 Leave a comment

This kind of error occurred When DataAccess tries to update the row in the database which has the original values for the fields that have changed.

The reason the update fails is that the artificial columns added at runtime are nullable but the CLR property which these columns are mapped to are all non-nullable. Ex – bit column is mapped to Boolean CLR property.

The generated UPDATE statement tries to find a row with the CLR default value i.e 0 but the value in the column is NULL.

I have updated the method that maps the artificial properties as follows –

var propType = Type.GetType(property.PropertyType);
if(propType.IsValueType)
{
propType = GetNullableType(propType);
}
var primitivePropertyConfiguration = myConfig.HasArtificialPrimitiveProperty(property.PropertyName,propType).HasFieldName(property.PropertyName);

Here I check if the Type of the field is a value type and if it is, then I create a nullable CLR type instead of the non-nullable type.

The helper method used is as below

public static Type GetNullableType(Type type)
{
if (type.IsValueType)
{
Type nullable = typeof(Nullable);
return nullable.MakeGenericType(new[] { type });
}
return type;
}

Hope this help !

Categories: ASP.NET