DataSource Controls :: StronglyTypedDataset - Assign User Input Values To The Columns Of StronglyTypedDataset?
Jan 25, 2010
I have successfully created a strongly typed dataset. And trying to assign my user input values to the columns of my StronglyTypedDataset but having no luck with it
[Code]....
In the above code 'PlantInventoryAccuracy' is the name of the Strongly Typed Dataset and 'PlantInventoryAccuracyDataTable' is the dataTable. when I try o debug this to see if my user input values are being assigned to te currentRow I see blue squuiggly line under the 'new' key word when I mouse hover it says
'The type PlantInventoryAccuracy.PlantInventoryAccuracyRow has no constructors defined.'
This is the first time I am trying to use Storngly typed datasets. I am not sure if I am trying to use it right. The above code is in my code behind page and my idea is to fill this row with the user input values then pass this to my data layer where I need to assign these values as the parameters to the stored procedure I have created and then store them to the database.
I am looking to cache a dataset and then filter the results as they will be used repeatedly. However, I don't know how to assign values in the filtered dataset to variables in C#. I have looked on the internet for the past few hours but all I can get in binding the dataset to a control.
I am looking to retrieve data from a database and assign those values to class objects which in turn will be turned into session variables. I am using an object datasource to retrieve the data from the database but I cannot find anywhere that shows how to assign these values to variables. The data is returned in a dataset. There is the added problem that there will be mulitple items returned which will have to be assigned to different arraylists of objects based on the a primary key in the database.
The Company table contains any Company with a potential relationship to a "Member". For example:
Companyabc = C (Competitor) Companyxyz = S (Supplier)
When a new Member record is entered, the user selects from two dropdowns: CompanyType (Supplier, Retailer,Competitor); and CompanyName. The CompanyName dropdown is populated depending on the value selected for CompanyType so if the user selects "Supplier" for CompanyType then only those Companies with a CompanyType of "S" for Supplier will be listed in the CompanyName dropdown.
The use can enter up to 10 CompanyType/CompanyName combinations. When the record is saved, these CompanyType/CompanyName combinations are saved in the Member_Company_Link table. One record for each CompanyType/CompanyName combination is entered in the table.
The problem I'm having is in the retrieval process. I have a "search" screen in which users can select certain criteria to list Members by and one of them is CompanyName. For example they want to see all Member records with "company xyz" as a Supplier and/or "companyabc" as a Competitor. Because each Member can have multiple Supplier and/or Comptitor records I can't figure out how to loop through them to match on the value entered by the user. If Member1 has 5 corresponding records in theMember_Company_Link file and 4 of them contain Companies that are Competitors (Competitor1, Competitor2, Competitor3 and Competitor4) and the search criteria is to find records containing "Competitor3" how can I loop through the values in the Member_Company_Link file for each MemberID to see if there is a match for "Competitor3"?
I know this post is too long and most of you will have ignored it by now but I'm hoping someone will have a clue because I've already spent more than a day trying to figure it out. It seems I have to store multiple values in an array but I have no clue how to do this.
I am returning a dataset from a method and trying to set one of the columns as Primary Key.
CategoryList.Tables[0].PrimaryKey = new DataColumn[] { CategoryList.Tables[0].Columns["CategoryNodeId"] };
Interestingly it gives me this error at run-time, These columns don't currently have unique values.
Now I perfectly know why this error should error, but there are no duplicate keys in this data column. I broke the code in between and bound the dataset to gridview to check if this column contains any duplicates and this is not the case. Here is the result set underneath. Have a look at the first column 'CategoryNodeId'.
CategoryNodeId CategoryId Name ParentCategoryNodeId [code]...
Is it possible in to set up an SQL table column to have multiple values? Or would I have to put my values into a new table and link it to the original one?
What i am trying to achieve is that there are 7 columns in my db table. one is primary key and rest 6 are integer columns. Now my application will allow user to input 6 values. I want to compare 6 values entered by user to those 6 integer columns and if in any row 3 or more columns match user's input Primary key of that table is returned..
I have tried using queries, cursor, nested loops and i am still unable to achieve my results..
DB Table Structure.. I am inputting 2,3,7,11,45,65. Number of returned rows should be 5. eg..
I've requirement where user can enter multiple columns like first name, lastname, email, age, sex fields and insert them into database.on my frontend aspx page, i'll be showing a single row initially with 5 text boxes(first name, lastname, email, age, sex) and a button to add more columns. when user clicks on add more, another 5 textboxes will be shown and then i'll be taking 5 + 5 (textbox values) and comma seperate them and need to insert into a table with primary auto increment key ID and the remaining 5 columns(firstname, lastname, email, age, sex). I previously worked on the same requirmeent but with only single column. Now i need to insert for 5 columns, How can i do this? Below is my stored proc which i used for single column insertion.
I have a simple user control which toggles between the visibility of a few images depending on the UserId. When the page is loaded for the first time, the userID is being assigned correctly (I'm debugging). However, there are two other buttons on the page for filtering the type of users, they are perform their functionality via Ajax (not the toolkit, but the normal javascript ajax) When one of these buttons are clicked, the user control cant get the userid, it always comes up as Zero. Oh, btw, the usercontrol is in a DataRepeater, so it occurs for each of the user.. all the time.. or thats the Idea. I have several other pages like this, (none of them have ajax) and the user control has no problems whatsoever.
My User control code:
[Code]....
And the Data Repeater is something like this:
[Code]....
Here, Immediately after the userControl <ucAB:....> line, I am printing the userid just to see if its valid (by <%# Eval("UserId") %> and the user id's are valid too. I dont understand why the User Control cant pick it up on ajax postback?
I have to get input from user in flat file format.then convert it to xml. Then, i have to store the entries into a datatable in the database. say 1,2,3 a,b,c be the user entries. it shall be stored into a table with 2 columns.how to do this?
I have a main web page and added a user control inside it. The user control has some textboxes. The problem I have is when I populate the textboxes with the data that is in the DB, they do not show the values. The strange thing is If I change the property of textboxes ReadOnly to TRUE, they show the values. The problem is that I need them to be ReadOnly=FALSE.
"System.FormatException was unhandled by user code - Input string was not in a correct format" This is driving me crazy! Can anyone see what the problem is?
This is my C# code where i'm trying to fill my dataset from a stored procedure:
[Code]....
My stored procedure:
[Code]....
This a screen shot of my EquipmentStatus Table. The Error occurs when i add new record with the same Fk_MeetRoom, which i need to do when i add a new Equipment. How can i solve this problem? I've tried to use EquipID (alias for EquipmentStatus.ID) when creating the relation in the dataset, but i still get the error.
I was using RangeValidator to validate user input on client side for double values.One of my user said that when he enters 5E-10, my range validator does not understand that number as a valid double.
in asp.net page user able to select gridview Columns, and it will hide remaining columns and that selection done by check box with column list bellow is Image link , what exactly I am looking for [URL] it look bellow after selection of column done [URL]
I want to put an input table on a web page using ASP.NET. The input table has 3 columns: date, quantity, and price. The number of rows is variable, depending on user input. The code behind will read the data and perform the necessary calculations. The data will not go into a database. It would be nice to have some client-side or server-side validation for the data, such as required fields and range checking.
Which control(s) in Visual Studio 2008 will perform what I want to do?
