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I have a Grid View where I let the users change selected Tex Box values and the do an Update of each row as shown below. How can I get the old value of the control while I am on the row? Then in the Row Udpating event you can access the Hidden Field control to get the old value and compare with the new value in text Box. What I did, which was simpler than using a hidden field, was to put the field name in the Data Key Names property of the grid Then during Row Updating, I was able to access the value using my Grid. I am trying to compare using the following syntax but the Old Values is always empty. Then also bind the same field value to the Value property of Hidden Field control. New Values collection is empty in the Row Updating event Handler. New Values contains the collection of values updated in the Grid View control. The database table used here has just two fields (sid and sname) My code is as follows: Web Page: --------------------------------------------------------------------------------------------------- im having the same problem i think: in my case i have set binding for template fields; ive a grid with 2 types of field: - bound filed editable (no the tamplate) - bound readonly field (template field) ive set Eval for the template and it is readonly, i placed also Bind to make a test but still count is zero; also had a try changing the datasource, and sure i have set the key field for the grid. OK, so I solved my problem, but not straight forward. From some googling it appears that, at least in the release candidate for NET2 this was a known bug; only binding to Data Sources lets those dictionaries be populated. | | From some googling it appears that, at least in the release candidate for NET2 this was a known bug; only binding to Data Sources | lets those dictionaries be populated. 2) I think it's weird that the "value" capability is tied to the parameters collection. That way it'd work with both types of data binding. I would like to confirm that this is a problem with the released version of NET2, so I can stop beating my head against the wall trying to get the Grid View to work "as advertised". As for the Grid View control doesn't correctly populate the Old Values or New Values parameters collection when performing udpdate operation, I think it is likely caused by some certain setting in the Grid View control... | | I would like to confirm that this is a problem with the released version of NET2, so I can stop beating my head against the wall | trying to get the Grid View to work "as advertised". - Mark Thanks for your followup Mark, Frankly speeking, I do agree with you that this is a big limitation since I haven't noticed this before until you mentioned this... The ...gridview control in another gridview control Hi ia have a questioni have a gridview control which contains button in one my question is i need another gridview to be placed in the first gidviewso that when i click on the button the second gridview will populate the my question is how to place second gridview in first is there any approach like first grid itself acting as parent and child.please help me Hi sirikalavalapalli: I think nested gridview will help you. These controls can be textbox, Drop Downlist (in Template Field), Comand Field present inside the grid. Gridview control embedded in another gridview control I am writing an ambulance crew scheduling application on the web and I need some help completing the last part. Ok This is the settings: I use a Viewgrid with only itemtemplate colums for example. :- On Disabling Controls Present inside a Gridview control Hi All, We have A requirement Where we have disable controls inside a grid.
It seems that its not getting the oldvalues and returns a null, which is something strange. If you are not using a 'standard' datasource New/Old Values are not always available in the Row Updating event.It looks as though you can't use keys if you are using templates fields or if you are not using the built in data controls.I haven't had time to verify this but that seemed to be the case from reading this. Row Index, False) Next Then in the Row Updating event I am trying to see if the value changed on each row in one of the Text Box controls. Old Values("Vendor List Price") Hi, A workaround is you can add a Hidden Field control beside the Text Box in Grid View.Hello all, My problem is the Grid View Update Event Args.