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How do you make a dataset when you cannot use a database for it?
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How do you make a dataset when you cannot use a database for it?
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How do you make a dataset when you cannot use a database for it? |
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#1 |
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I have a challenge on my job: to make a gridview that depends on a
dataset that is not from a database. The reason for this is that there are two gridviews plus some other data that have to be saved to a database all at once. To simplify a little, at the top of the form, the user enters two numbers which describe how many rows each grid has to have. (He also enters some other data). I guess he would click on a submit button once he has those numbers. Then he has to enter all the data in the all the rows for the 2 grids. The grid rows should have EDIT and DELETE buttons. At the end of all this, he enters a password and clicks on a submit button. Only after he does all this can I save the grid information (and the 2 numbers and the other data) to databases. So it seems to me that I can't have each grid with a datasource of a database, because it would be showing what it retrieves with its SELECT statement, which at the start of the data-entry would be no rows at all. The original setup I had was that the user would fill out a row of textboxes and checkboxes, and then he would hit a submit button, and the data would be added to a database, and the grid would reflect the new row added. I repeated this method for the 2nd grid. But I was told that I should have an all-or-nothing operation - either all the grids and other data are submitted (with a password), or nothing is. Is there a way to do this? Thanks, Marvin |
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#2 |
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Marvin,
A simple question, do you use a Session to store the dataset between the sends? Cor <COHENMARVIN@lycos.com> schreef in bericht news:63829249-0992-4e54-ac4b-72ade6ad11b4@m36g2000hse.googlegroups.com... >I have a challenge on my job: to make a gridview that depends on a > dataset that is not from a database. The reason for this is that > there are two gridviews plus some other data that have to be saved to > a database all at once. > To simplify a little, at the top of the form, the user enters two > numbers which describe how many rows each grid has to have. (He also > enters some other data). I guess he would click on a submit button > once he has those numbers. Then he has to enter all the data in the > all the rows for the 2 grids. The grid rows should have EDIT and > DELETE buttons. > At the end of all this, he enters a password and clicks on a submit > button. Only after he does all this can I save the grid information > (and the 2 numbers and the other data) to databases. > So it seems to me that I can't have each grid with a datasource of a > database, because it would be showing what it retrieves with its > SELECT statement, which at the start of the data-entry would be no > rows at all. > The original setup I had was that the user would fill out a row of > textboxes and checkboxes, and then he would hit a submit button, and > the data would be added to a database, and the grid would reflect the > new row added. I repeated this method for the 2nd grid. But I was > told that I should have an all-or-nothing operation - either all the > grids and other data are submitted (with a password), or nothing is. > Is there a way to do this? > Thanks, > Marvin |
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#3 |
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On Apr 28, 12:19 am, "Cor Ligthert[MVP]" <notmyfirstn...@planet.nl>
wrote: > Marvin, > > A simple question, do you use a Session to store the dataset between the > sends? > > Cor I don't think so. All the grids are on the same page, so there seems to be no need to do that. But if I'm wrong, let me know. -- Marvin > > <COHENMAR...@lycos.com> schreef in berichtnews:63829249-0992-4e54-ac4b-72ade6ad11b4@m36g2000hse.googlegroups.com... > > >I have a challenge on my job: to make a gridview that depends on a > > dataset that is not from a database. The reason for this is that > |
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#4 |
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You need it,
As you send a page, everything goes totaly out of scope. A page is not persistend. Therefore you have to save before you do a send (in fact as all events are done). The nicest is for me for that the session item, because the dataset serializes smootly in that. You have to reinstall everything again as the page isposted back. Cor <COHENMARVIN@lycos.com> schreef in bericht news:7b7a70a5-4c8c-498d-9ce4-9bd7a9f4a21b@x41g2000hsb.googlegroups.com... > On Apr 28, 12:19 am, "Cor Ligthert[MVP]" <notmyfirstn...@planet.nl> > wrote: >> Marvin, >> >> A simple question, do you use a Session to store the dataset between the >> sends? >> >> Cor > I don't think so. All the grids are on the same page, so there seems > to be no need to do that. But if I'm wrong, let me know. > -- Marvin > >> >> <COHENMAR...@lycos.com> schreef in >> berichtnews:63829249-0992-4e54-ac4b-72ade6ad11b4@m36g2000hse.googlegroups.com... >> >> >I have a challenge on my job: to make a gridview that depends on a >> > dataset that is not from a database. The reason for this is that >> |
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