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Best way to sort controls in a gridview

Posted on 2008-10-08
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Last Modified: 2013-12-17
Please look at the attached bmp. When the user clicks "Select View" the items labeled "A" "E" "D" "C" "B" need to be sorted and should be in "B" "C" "D" "E" "A". All the controls under each letter (the dropdowns, checkboxes etc.) need to stay with te letter they're under. Whats the best way (or anyway) to sort these controls like i want? Currently i have a composite control with all the child controls in it and its on my aspx page 5 times, one for "A" one for "B" etc.
bigpage.bmp
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Question by:troycomp
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by:harwantgrewal
ID: 22675550
Hi
Sorry I could see anything in your BMP
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by:troycomp
ID: 22678286
Heres a bigger one
bigpage.bmp
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by:harwantgrewal
ID: 22683306
Hi troycomp
In the main page 5 how are you calling this control by passing some values I take example you have A then the control gives the result and then pass E and it brings the results for e and so on?

If that is the case declare a Array and loop through it to pull the data in your composite and you can either declare other array for different order.

To achive this I am assuming that you composite control has a public paramater which when passed decide what results have to be shown.

Thanks

Harry
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by:troycomp
ID: 22683347
Hi harwantgrewal:

I have the composite control on my page 5 times. What results will be shown are based on what was loaded on another page. I have public properties but not like the one you described. They are not dynamic. Are you saying create the controls dynamically, declare an array and fill the array with the 5 composite controls, render them to the page and when the user clicks the sort checkbox, sort the array using array.reverse()?
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by:harwantgrewal
ID: 22683526
When you say you have that composite control 5 times there must be some sort of desision happening what to display like A or E.?

And yes you are right render the composite control dynamically 5 times rather then putting it 5 times.

Harry
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Author Comment

by:troycomp
ID: 22683533
Yes there is. And the controls will have to be created dynamically cause based on the search results, there may only be A thru C and not A thru E.
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by:harwantgrewal
ID: 22683573
Still easy. Array can be dynamic :)
In your result you get to tables first one tells you what to display like "A" and "C" and you can make array of that and then display the results in your control.

Harry
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by:troycomp
ID: 22683611
I'll give it a try and see what happens
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by:harwantgrewal
ID: 22683617
Thanks I will wait for your reply.

Harry
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by:troycomp
ID: 22683701
Harry:

I got it to reverse the order but i couldnt get it to reverse it to its original order. If i try Array.Sort i get "Failed to compare two elements in the array". Heres my code (Register is my composite control with my other controls (dropdowns, textboxes etc) in it.

  protected override void OnInit(EventArgs e)
    {
        base.OnInit(e);

        Register rg = new Register[5];

        for (int i = 0; i < 5; i++)
        {
            rg[i] = new Register();

            rg[i].nameTextBox.Text = "Text " + i.ToString();
            rg[i].emailTextBox.Text = "Email " + i.ToString();
            Panel1.Controls.Add(rg[i]);
            Panel1.Controls.Add(new LiteralControl("<br/>"));
        }

    }
protected void Button1_Click(object sender, EventArgs e)
    {
        Array.Reverse(rg);

        for (int i = 0; i < 5; i++)
        {
            Panel1.Controls.Add(rg[i]);
            Panel1.Controls.Add(new LiteralControl("<br/>"));
        }

    }
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Expert Comment

by:harwantgrewal
ID: 22683716
Before Add those control you have to remove every control in your panel as you will be adding the same controls in a sort way.

Harry
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Expert Comment

by:harwantgrewal
ID: 22683745
moreover you are not checking for postbacks. I recommend you to care a function for inserting Register to your panel. And remember the life cycle in ASP.NET. One more thing your rg is not a global variable how can you access that in button  click?

Harry
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Author Comment

by:troycomp
ID: 22683748
I just ttried that but got the same results
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by:troycomp
ID: 22683764
It is global. i just wanted to show u what the name of it was
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Author Comment

by:troycomp
ID: 22683778
why do i need to check for a postback?
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by:harwantgrewal
ID: 22683911
Sorry for the delay reply.
No need to check postback on what link you get error when you do reverse?
Harry
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Expert Comment

by:harwantgrewal
ID: 22683929
Where is the code which makes the array back again in original order?
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Accepted Solution

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troycomp earned 0 total points
ID: 22683944
Harry i'll work on this tomorrow  i'm tired from a llong work day.
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Expert Comment

by:harwantgrewal
ID: 22683953
No Problem, but its common problem with Sort Specially which this complex array object. Hope you will get up fresh and finish in one go :)
Thanks
Harry
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