Forms Data Controls :: Validate And Read Values In A Gridview?
Feb 11, 2010
I need to validate and read edited values from a gridview. Here is the scenario,I have a gridview which has two columns Iteam name and Item Rate. Number of rows are dynamic depending on the user. I get the Text boxes filled with DB data.
I need to do this,
1) Validate if the user has entered numeric using front end validation
2) Read the edited values by user for each row and insert into the database in server side
string code = ((TextBox)(row.Cells[2].Controls[0])).Text; string name = ((TextBox)(row.Cells[3].Controls[0])).Text; bool active =((TextBox)(row.Cells[4].Controls[0])).Text=="True"?true:false; //bool active = ((CheckBox)(row.Cells[4].Controls[0])).Checked; int id = System.Convert.ToInt32(row.Cells[1].Controls[0]); }
I get error on the last line stating out of index error, how do get the value which is not set editable in the gridview
This was working fine and then I was tinkering around and I can't figure out what I did to break it. When I stepthrough the debugger, the for each stmt cannot read values from the radiobutton list or the textbox, it only show "" for each. I double checked the id names between the code behind and the markup.
Please try to guide me how to achieve this one. my application need to do reading the PDF document and want to store the values in Database.Actually what happens is my customers sends me the OCR scanned copied in the form of PDF file. i need to read those scanned pdf files and store the customer information into my table.
I have a Gridview on my aspx and i wonder if i can use validators like requiredfieldvalidator,comparevalidator or etc to validate a row is added or NOT?
- I have a GridView , I want add a row FooterTemplate to add a new record in GridView . But I want to validate TextBoxs in FooterTemplate. My language I using is C# , Web Form .
i take data from Sqlserver database , and my prblem is that i want to get old and new values from gridview and base on that i want to change there background colors .. i try gridview rowupdating , editing ,updated Events but when i debug no break point hit and there was no value in ViewSate that i declare ,
select AutoIdx,TxDate,Id,AccountLink,Description,Debit,Credit,(Debit-Credit) as Actual from PostGL where Id='JL' and AccountLink=2
AutoIdx TxDate Id AccountLink Description Debit Credit Actual 3 2010-01-22 JL 2 bcb 0 35.09 -35.09 5 2010-01-28 JL 2 g 3.51 0 3.51
I am trying in view like this
declare @cnt int declare @i int set @budget=20 set @cnt= (select COUNT(*) from PostGL where AccountLink=2 ) set @i=1 WHILE (@i<=@cnt ) BEGIN set @tdebit=??
END
I am taking count the no of rows having AccountLink=2 I need to read all debit,credit and add all debit into totaldebit,all credit into totalcredit independently from table. then i need to show the totaldiff as Actual. i need ....totaldiff=totaldebit-totalcredit
How to validate user entry to cell in GridView and replace the cell value on the other column?
Ex :
i have a gridview with 2 columns (A & B), on both columns i change it to TemplateField (TextBox).
Now on whatever row on column A, i want to validate the user entry when user leave the cell, how to achieve that ?
Based on user entry on column A, i will do some data lookup and get a value returned from the server, how to tell the gridview to replace the value on column B (on the same row) based on the value returned from the server.
I am working with VWD Express and Visual Basic. take this into consideration if you are willing to answer my question. I do have the following code for a GridView.
As you can see the second cell in each row is a EditButton, and the only cell that could be updated by users is the last one, DataField = TUDTIThreadActualStatus. I just want to know what could be the easiest way to validate the user entry when the row is in edit mode. Is there anyway to validate the textbox control with a validation control or is better to used code behind. Either way may you explain and drop some code if posible.
I am using a gridview that contains an asp:fileupload so that when the user clicks 'edit' they can upload a pdf. I need to validate the size of the file, it needs to be less then a certain size. I tried to use a custom validator, but it never get called when the user updates. How can I validate the file size on edit in the gridview?
i'am trying to validate a DateTimePicker inside a gridview ( it's actually an ItemEditTemplate) i'am trying to use a compareValidator Because i have two columns startDate and endDate this sounds to be easy but the validator cannot find the item startDate because it's in another column is there a way to do it whithout having it done on the client side using javascript .
This is my gridview structure I need two things from this1) For example in Label1 shows 50 then In Text1 I need to check the value is less than or equal to how to validate in client side in adp.net validation or javascript...? Like this same for second Item template also I need validation.. Like this I have some 10 itemteplate....2) On button click I need to save the value of Text1 and Text2 in database.. how would be my Insert statement in button click..
I have Parent/Child Grid (also called Nested Grids).
Parent Grid (PG) :: PG has two template fields. 1st template field has "Category ID" and 2nd template has Child Grid
Child Grid (CG) :: CG is populated in PG's RowDataBund event based on "Category ID". In CG's DataBound event, I am doing something which I need to display in CG's footer row.
Problem :: In the footer row of each CG, I have to show the "Category ID" which is in PG' row. How can I get hold of the PG's row which hascurrent nested grid (there will 'n' child grids, one for each 'Category ID' in the PG ) so I can read the "Category ID"
I was thinking if I could do something (DataBound event of CG) like this..
string catId = ChildGrid.Parent[get the index of the current row in PG].Cells[0].Text;
I have a gridview each line has 4 linkbuttons - Edit , Update , Cancel , Delete and a few columns with data...For example TeamName and TeamEmail, and a hidden column that contains a validator (for ease of validating controls that are found on the same row , same naming container)
When Edit button is Clicked , the specific line goes into editing mode , Texboxes are created for TeamName and for TeamEmail .
I create dinamically (code behind ) a new textbox that reads the value from the TeamEmail textbox , i give it a new id (let's say "Email") , add that email to the controltovalidate property of my validator , and call the validate() method of the validator.
Everything works fine when i modify the value in a worng format , the validator err message appears , when i modify the TeamEmail value to a good email format , the validator property isvalid becomes true , and the update is running , but my textbox is empty :( updating the TeamEmail value to null.
This is some bad code but hope you understand what i meant :
I'm trying to validate that a GridView logated in one of the steps of the Wizard Control is populated by the user before the Next button is clicked. What I mean is that I need to block Next (or Prev) button until the user populates a gridview, once the gridview has at least one element then enable the (Next/Prev) buttons. How can I enable/disable Next/Prev buttons within a specific step?.
