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.
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.
You can see in Pic Attached, Records of table TBL_STUDENT, and also find the output what I am getting . For the records - 2 and 3 whose Name is B and C, I m getting the correct status,But for the Record whose Name is A, I am not getting correct Output, Because in Database null is dere, I want if in database null is dere then checkbox is Unchecked. How to to dat???
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.
I am just not able to get the syntax right for the below code,
Dim HeaderCount As Integer = readerXML.HeaderCount() Dim NewTable As String NewTable = "CREATE TABLE " + tbCustomerFileName.Text + " (" + " RowId smallint" + " IDENTITY(1,1)" + " PRIMARY KEY CLUSTERED," For I = 0 To [HeaderCount] NewTable = NewTable + readerXML.Item(I) + " DEFAULT 'New Position - title not formalized yet'," + " varchar(50) NOT NULL," Next [I] + ")" ...this part gives me an error ssaying incorrect syntax.
I am trying to upload an excel file and based on the number of headers in the file, I want to generate columns, however I am just not able to get this going because i am getting syntax error, the main problem being I am not able to put the brackets at the right place.
I have a GridView with an associated DataKey, which is the item ID. How do I retrieve that value inside the RowCommand event?
This seems to work, but I don't like the cast to LinkButton (what if some other command is firing the event?), and I'm not too confident about the NamingContainer bit.
LinkButton lb = (LinkButton)e.CommandSource; GridViewRow gvr = (GridViewRow)lb.NamingContainer; int id = (int)grid.DataKeys[gvr.RowIndex].Value;
I'm aware that I could instead pass that ID as the CommandArgument, but I chose to use DataKey to give me more flexibility.
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.
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 Dim newEnglish As String Dim newFrench As String
And bind gridview from this table and ordred by Preference Column I put Linknbutton in gridview that code is:
protected void LinkButton11_Click(object sender, EventArgs e) { GridViewRow row = (sender as LinkButton).NamingContainer as GridViewRow; int id = Convert.ToInt32(GridView2.DataKeys[row.RowIndex].Value); using (SqlConnection conn = General.GetConnection()) {
[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
I created web pages that used an SQL database on my home computer. That DB allowed me to use data types such as 'date' and 'time'. But when I transferred my website to a host server, I discovered that its DB does not accept these types. They only use 'datetime' and 'timestamp'. I changed the tables in the DB on my computer to conform to the same format as on the host computer. I also changed the properties to the new data types with the O/R Developer and re-published the website files to the host server. But I keep getting the same error message that states the server does not support 'date' data types whenever I execute a web page that uses that table column. The C# code states "officetable.StartDate = DateTime.Today;"
Is there a way to use the GridView paging and having the links not use JavaScript. So that when you click on the page number 5 (for example) that link is a hyperlink.
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?
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
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.
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:
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.
I have a GridView with a checkbox for the user to select different categories. I am trying to retrieve the CategoryID associated with each row when the user clicks next, however I keep getting an error that tells me the selected index cannot be negative or out of range.
Here is my function
[Code]....
How do I retrieve the CategoryID of the row as an Integer value?
I have wired an event to handle delete command for my GridView. But I cannot determine which the record's unique key, in my case stored in DOCIDNO field. All I get is a row index, such as 0, 1, 2 which obviously cannot be used to accurately delete a record from database.
I have a gridview with a DropDownList (contained in a TemplateField). I have set the OnSelectedIndexChanged event to a function called "ddlAgent_SelectedIndexChanged" This allows me to aquire when a user has changed the value for the dropdownlist. What I need to do is persist this newly selected value to the database for the gridview record. The problem I'm having is how to I get the datakeyNames value for that row? See code below!
Protected Sub ddlAgent_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Dim gvItems As DropDownList = CType(sender, DropDownList) ' Write the selected Agent ID to the Inquiry record. 'Dim ID As Integer = gvMaint.DataKeyNames(e.SelectedIndex).Value ' THIS FAILS BECAUSE e.SelectedIndex is not part of System.EventArgs End Sub
