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I made a change password page using asp. When a user log in, he/she has an option to change a password by inserting a. old password in a text box, b.Inserting new password, c. Reinsert the new password. I created codes in the button OK for insert and I also made a selection using SQL string.Format. Every time I run the application, it works but no Updates been commence into my table??
If this is not a typo then you have your variables the wrong way round.
string sql = String.Format("Update Registration set
Password ='{0}'where Username='{1}'", username, newpassword);
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how are you? I need to implement an autocomplete with a search on an entity to save it in a list of objects, all this with a previous confirmation message. After saving the item, I can't select the last line of the previously entered value. Any idea? I leave the step-by-step to try in TryMudBlazor.
TryMudBlazor Link
Search for "hey" and press enter
Confirm the message box
Select the string value (it is not possible to avoid the entire selection)
I need to save the last search value so I can continue searching for a similar item
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I need to send a plus(+) operator as string from typescript service to C# Controller. When I debug it, typescript sends as "+", but in C# Controller, the parameter comes as null. The equal sign or negative sign(=,-) are working fine. Just plus sign has a problem. For example if I try to send "13+" plus is recognized as a blank -> "13 " in controller How can I solve it?
+ means space in an URL, so I'm assuming you're assembling an url query string by hand? If so, you need to encode + to %2B.
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I am trying to cause a database validation error when inserting into (or editing) the database to test the try/catch
C# is too smart and catches my type casting errors.
Try inserting a value that doesn't fit into a column (a string 10 characters long in a varchar(2)),
reference a foreign key that does not exist,
a null value in a column that doesn't accept nulls,
try connecting to the database with the wrong password/user combination.
Without any sql/c# code it's hard to know how you have things setup
EDIT- answer in comments:
"do you have any identity fields? try inserting a value that already exists into that column"
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When I tries to insert data to sqlite in window store app it gives unexpected exception in SQLite.cs file. My code looks like:-
SQLiteConnection con = new SQLiteConnection(Path.Combine(ApplicationData.Current.LocalFolder.Path, "Fav.db"));
favorities addData = new favorities();
addData.Name = Title.Text;
addData.desciption = desciption.Text;
con.Insert(addData);`
and when I click on button on which these operation are being performed run time exception arises which looks like:-
in fact this SQLite.cs file is an API which I downloaded from "Manage Nuget Package" please help me out.
Thanks & Regards,
The table doesn't exist in the database.
Use this after you create the extension:
con.CreateTable<favorities>();
The creation of the connection would be better in a using statement too.
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I am new to this asp.net and SQL. Here, i want to create a new role called Employee_Delete by using SQL server management studios. i have already database payroland a table called aspnet_Roles where all the roles ate listed. I Want this newly created role to appear in the same list. And then, When a user is assigned this role, then he would be able to delete the existing employee. And also the process to define that role so that it can perform its task i.e. in this case deletion.
I have gone through googling this problem but didn't get this exactly. Any help would be appreciated.
Thank You
exec aspnet_Roles_CreateRole
#ApplicationName = 'Application name as shown in your project',
#RoleName = 'RoleName
This is the actual query needed to create new role in the existing 'aspnet_Roles' from the SQL server management studio.
If you are using Membership and have enabled Roles, you can simply call Roles.CreateRole ("Employee_Delete") and add user to the role by calling Roles.AddUserToRole("username", "Employee_Delete")