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Help with retreiving data and appending data in gridview

Hello,

I am loading my Grid with 4 rows of the following data from an XML file

1-
2-
3-
4-

If users only enter data in the first two rows for example

1-Data 1
2-Data 2

How do I only loop through the first two rows, and pass their data in the following format

1-Data1; 2-Data2

to a textbox?

And if the user deicdes to enter more rows, How do I add news rows to add more data?


Afterwards, when I load the grid to update data, How do I display the data back in the grid
in ther following format:

1-Data 1
2-Data 2

(After it was saved in the folowing format: 1-Data1; 2-Data2)
 

Victor
0
vcharles
Asked:
vcharles
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1 Solution
 
CodeCruiserCommented:
Too many questions in a single post.

>How do I only loop through the first two rows, and pass their data in the following format

Loop through all the rows but only do appending if the cell is not empty. Use String.IsNullOrEmpty

>And if the user deicdes to enter more rows, How do I add news rows to add more data?
Use the Footer template to add rows.
http://www.dotnetfunda.com/articles/article180.aspx
http://www.aspdotnetfaq.com/Faq/How-to-insert-row-in-GridView-with-SqlDataSource.aspx

>Afterwards, when I load the grid to update data, How do I display the data back in the grid
in ther following format:

As suggested in your other question. Split the string and add rows.
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vcharlesAuthor Commented:
Hi,

Can you please help me with a sample code for the following:

Loop through all the rows but only do appending if the cell is not empty. Use String.IsNullOrEmpty

Victor
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vcharlesAuthor Commented:
Thanks for the links, unfortunately I'm using XML with a thirdparty Grid from ComponentOne, but the informations was very useful.
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CodeCruiserCommented:
Have you managed to loop through the row and get cell text?
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vcharlesAuthor Commented:
Hi,

I know I did this before but I can't seem to find the code,can you please send me the code that loops through the Grid, will be sure not to lose it this time.
Thanks.
0
 
vcharlesAuthor Commented:
Can you please help me finish the syntax to retreive the data from the Grid.
The code in part A works for the Listbox, but for the Grid, Items is not a property, what is the correct syntax to use?          

Part A:
   For x = 0 To ListBox1.Items.Count - 1
   C1NSN.Text = If(String.IsNullOrEmpty(C1NSN.Text.ToString.Trim), ListBox1.Items(x).Text, C1NSN.Text & ";" & ListBox1.Items(x).Text)
    Next

Part B:

        For x As Integer = 0 To C1GridView1.Rows.Count - 1
            C1NSN.Text = If(String.IsNullOrEmpty(C1NSN.Text.ToString.Trim), C1GridView1.Items(x).Text, C1NSN.Text & ";" & C1GridView1.Items(x).Text)
        Next
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vcharlesAuthor Commented:
OK, I am getting closer focusing on the regular Grid. I managed to loop through the Gridview and pass its data to a textbox using the code below:

   For x As Integer = 0 To GridView1.Rows.Count - 1
            C1NSN.Text = If(String.IsNullOrEmpty(C1NSN.Text.ToString.Trim), GridView1.Rows(x).Cells(0).Text, C1NSN.Text & ";" & GridView1.Rows(x).Cells(0).Text)
        Next

How do I set the Grid to editable, I don't see an edit property?
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vcharlesAuthor Commented:
Hello again,

Just noticed a problem. Eventhough I entered text in the first two rows of the Grid, when I try to move the data to the textbox, it still shows as the initial display shown below:

1-
2-
3-
4-

When I enter the following:

1- Data 1
2- Data 2
3-
4-

I would only like to see Data 1;Data 2 in my textbox.

How do I fix this problem?
0
 
vcharlesAuthor Commented:
Just two be clear, I am testing with the third party Grid, until I am able to edit data in the regular Grid, but I suspect the same issue will occur with the regular Grid.
0
 
CodeCruiserCommented:
Right. So now you have managed to loop? And you are unable to see the new data entered on grid?
0
 
vcharlesAuthor Commented:
Yes,  for some reason the data I typed in the grid does not appear in the textbox only the
initial data below it was initially loaded with. I looked for a postback property but it doesn't exist.

1-
2-
3-
4-
0
 
CodeCruiserCommented:
Can you show the code you are using?
0
 
vcharlesAuthor Commented:
I am using the following code:

1. Form Load event:

            C1NSN.Text = "1.;2.;3.;4.;5."
            Dim tmp() As String = C1NSN.Text.Split(";")
            Dim dTable As New DataTable
            dTable.Columns.Add("Column1", GetType(String))
            For i As Integer = 0 To tmp.Length - 1
                dTable.Rows.Add(New Object() {tmp(i)})
            Next
            C1GridView1.DataSource = dTable
            C1GridView1.DataBind()        

2. Button Click event to transfer data from Grid to Textbox.

 For x As Integer = 0 To C1GridView1.Rows.Count - 1
            C1NSN.Text = If(String.IsNullOrEmpty(C1NSN.Text.ToString.Trim), C1GridView1.Rows(x).Cells(0).Text, C1NSN.Text & ";" & C1GridView1.Rows(x).Cells(0).Text)
        Next
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