Unable To Get The Datakey Value Of A Selected Row In GridView For Use In FormView
Sep 15, 2010
I have a gridview like this :
[code]....
I have done this before "n" number of times but I am not able to get it working this time. The trouble is that when the call for the Select Method of the formview goes to the relevant function - "GetCustomerByCusnum" I have a null value in its parameter "cusnum".
I know that I can write a selecting event and using CommandArgument, parse the value of the selected row and pass it into the Select method as a value but I dont want that solution. I know it works without the "Selecting" method but I cant recall how.
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Jan 31, 2010
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Aug 5, 2010
GridView
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AllowSorting="True" PagerSettings-Position="TopAndBottom"
PagerSettings-Mode="Numeric" PageSize="40" CellPadding="4" DataSourceID="dsEquipmentGridView"
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[Code]....
For the first page loaded, it shows the correct DataKey value if I click on the command field.
However if I change to the next page of results, upon selecting a record the corresponding value is incorrect. It seems to keep the previous page information. How do I overcome this?
EDIT:
In the GridView1_SelectedIndexChanged method, I used the following:
[Code].....
I am unable to get the correct value after paging.
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Nov 22, 2015
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Mar 4, 2011
On Button1_Click I need to get the value from selected DataKey (User presses Select in gridview and highlights row).
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Mar 17, 2010
Does any one know how set the FormView PageIndex to a DataItem with a specified DataKey?
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May 15, 2010
I am fairly new to Visual Web Developer so I hope this makes sense.I have a page with a GridView (code below). When a person clicks on the Select Link, I would like it to direct them to a page with a FormView of the selected row so that it can be edited. I feel that this should be fairly basic but am having trouble finding the means to make it happen.
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
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Jul 7, 2010
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[code]....
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Apr 27, 2016
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Gridview [URL] .....
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Jul 22, 2010
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here is some code from the source:
[Code]....
Here is what I tried to do in the code nehind of the button3_click:
[Code]....
[Code]....
CLearly I am lost. I have been working with ASP.NET VB for 2 months. I'm in over my head with figuring this one out - I've been at it for days.
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Jul 31, 2010
I am unable to access the data in the gridview's selected row. I have done this lots of times but must be forgetting something.
Here is my gridview:
[Code]....
[Code]....
[Code]....
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Nov 8, 2013
I have followed your Nested level gridview and found it working, but i want add a button in the child element(from your example i will have a btn in Product grid and it should get contact_id (parent datakey value as well) ),as i need to update in database.
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May 12, 2010
I have a GridView with an associated DataKey, which is the item ID. How do I retrieve that value inside the RowCommand event?
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I'm also aware that it's possible to use a hidden field for the ID, but I consider that a hack that I don't want to use.
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Jan 15, 2010
What seems to happen is 'GridView1_RowUpdating' gets fired, at this point newEnglish, newFrench, and newGerman all have the new values as they are passed into 'Logic.Update'. Then the update functions updates correctly, but once the 'GridView1_RowUpdating' sub ends, it seems to call Logic.Update another time, and this is where the new values get lost for French and German (datakeys) but not English.
Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating
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Dim newFrench As String
[Code]....
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Mar 26, 2016
This is Film table in database
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[Code] .....
Oroblem is in this line:
int id = Convert.ToInt32(GridView2.DataKeys[row.RowIndex].Value);
I want when I click on linkbutton it use Id but here it use Preference data How I can define that according to Id column it go to
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Sep 2, 2010
after my grid view updates a record I would like to run some code, I have tried to use SelectedDataKey.Value.ToString() to get the datakey. However it is null, the record updates so the value must be stored somehow?
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Jan 5, 2011
I have a gridview with datakey value
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Dim _id As Integer For Each row As GridViewRow In Me.gridviewi.Rows Next
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Jul 27, 2011
I have a situation where I needed to add a row to my gridview. So say I have rows 3, 4 and 5.
My Datakeys are defined as "ID, CostingID". I did that so I can reference the two ID values I need when saving records.
here is the code in my RowDataBound event.
Basically if it is a datarow, I'm adding the value dataitems so I can get a sub total in the footer row.
Then, I have a boolean field called isDisbursement. So I sort my data by that field. So all records with the disbursement flag as true will display first.
Then as soon as the disbursement flag hits false I add a row to display the Total of the disbursement records value field.
All this works. My problem is, because I added a row at index 4 it inherits the datakey of the row that was at index 4 before. So when I'm looping through the grid rows to save the values I'm having a problem. I've attached an image so you will understand better what I'm trying to achieve. The "Total Disbursements" is the row I added. But it gets the following rows datakey because it is now at index 4.
when I do this, as soon as I reach row 4, although it doesn't have a CostingID it gets the CostingID of row 5 that used to be row 4:
Code:
Dim CostingID As Long = Convert.ToInt64(Me.grvCostings.DataKeys(row.RowIndex).Values("CostingID").ToString)
Dim strValue As String = CType(row.FindControl("txtValue"), TextBox).Text
Code:
If e.Row.RowType = DataControlRowType.DataRow Then
If Not IsDBNull(DataBinder.Eval(e.Row.DataItem, "value")) Then
_SubTotal += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, _
"value"))
End If
[Code] ....
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Mar 19, 2010
Tried this but it doesn't work.
[Code]....
Retrieving datakey value in gridview?
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Aug 14, 2010
Lets say for example that I have a book object that looks like this:
[Code]....
And a Page_Load method that bounds a GridView called "gvBooks" from a generic list of books:
[Code]....
Now as you can see, I want to have the BookId value that is part of the Dictionary as a DataKey of the gvBooks GridView.
That piece of code of curse returns an Exception:
"DataBinding: 'GridViewTest.Book' does not contain a property with the name 'BookId'."
My question is: Is it possible to have the BookId value as a DataKey of the GridView?
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May 7, 2015
How can get datakey value of Nested(child) GridView on click on delete button of child grid
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Mar 16, 2010
i am still stumped with this operation: i am trying to retrieve a GridView selected row data..here is my code.. the commented part that gives me the selectedindex works just fine....but the one giving the selected row cell value does't work and there is no error.. The update operation is done successfully...weired. i need to assigned selected row cells values to variables ..do some calculations and then re-assign the result calculation to cell[9]..
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
string s = GridView1.SelectedRow.Cells[5].Text;
TextBox1.Text = s.ToString();
//string s2 = GridView1.SelectedIndex.ToString();
//TextBox1.Text = s2.ToString();
}
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Feb 4, 2010
I'm relatively new to the VS environment. I'm using VS2010 Beta 2 with VB. I have a Gridview setup to pull a list of employees. Next to their name I have edit and delete icons. When I leave the icons as ButtonFields, they pass the DataKey value to my code behind perfectly. When I convert the ButtonFields to TemplateFields, they no longer pass the DataKey.
[Code]....
[Code]....
[Code]....
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Apr 11, 2010
My gridivew currently has 4 colums with the third being a subject column. I want this colum to have bold text if the datakey 'ReadStatus' is equal to false. I have had success if the column is bound to the gridview but 'ReadStatus' is only a datakey and not bound to the gridiview. My code is below:
[Code]....
[Code]....
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Aug 4, 2010
I want to select a row in my GridView based on a known data key value at runtime.
In other words, I have a data key value, 2 for ex., and the primary key value of one of the rows in my GridView is 2. How can select that row? (Without having to go through each row to find which one matches my key, then setting the SelectedIndex.
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