Web Forms :: How To Load Such Gridview With Data From Database
Dec 13, 2011URL....To this same gridview how can i load data from database? I want to load data in the gridview in the above link
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Web Forms :: How To Load Data Automatically From Database
Jan 8, 2011i have a web application with sql server 2008 i wanna know if its possible to load the data automatically after its been inserted to DB..i have a alerts table which store message and user name to which the alert is to be send i wanna display the alert msg to user after it has been inserted...
View 3 RepliesForms Data Controls :: Failed To Load Viewstate When Gridview Control - Replace Gridview With Datagrid
Apr 5, 2010Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
The above error occurs with gridview control , when used with template field columns with item template / and edit templates etc.
updating a row within gridview, at the time of loadiong it loads perfectly fined, but when tried to modify an existing row within gridview control, then it produces the error. Make sure the grid view control has to be a child control which manages the child table info with in a master form. to reproduce the above problem the grid view must be loading the child records info of a master within the masterform, meaning both master data and gridview data all to be managed in one single form.
I had to replace gridview control with datagrid and then it worked perfectly fine. I wasted almost 4 days of my time., there is no way we could figure out the problem. here is the full info of the problem.
Server Error in '/' Application.
Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
Source Error:
[Code]....
Stack Trace:
[HttpException (0x80004005): Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.] System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +306 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134 System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221 System.Web.UI.Page.LoadAllState() +312 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1661
Version Information: Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3082
Forms Data Controls :: Load Values From Database To Dropdown Before AddQuotenumber Button?
Mar 11, 2010I have Dropdown for Quotenumber(auto increment ).i have created a function to retreive the data from database.data loading into dropdown. when i click on Addquotenumer button the new quotenumber generated and same loading into dropdown but 2 set of Quotenumbers are displaying rather than singleset, i debudded the code the reason was i have called this function twice one is form load and another one in AddQuotenumber button event,both should manadetory as per my requirement. how can un load this dropdown before AddQuotenumber button
Function to retreive data to dropdown
Public Sub retriveDataToDropDown()
Try
Dim connectionString As String = "Database=fabdb;" & "Data Source=localhost;" & "User Id=root;Password=pacvision"
Dim query As String = "SELECT QuoteNumber FROM quotes"
Dim connection As New MySqlConnection(connectionString)
Dim da As New MySqlDataAdapter(query, connection)
Dim ds As New DataSet()
If da.Fill(ds) Then
DDQuote.DataSource = ds.Tables(0)
DDQuote.DataTextField = "QuoteNumber"
DDQuote.DataBind()
'DDQuote.Items.Insert(0, New ListItem("Select", "Default value"))
End If
connection.Close()
Catch ex As Exception
'Console.WriteLine(ex.Message)
End Try
End Sub
AddquoteNumber button code
Protected Sub btnAQ_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnAQ.Click
Dim connectionString As String = "Database=fabdb;" & "Data Source=localhost;" & "User Id=root;Password=pacvision"
Dim rowsEffected As Integer = 0
Dim Query As String = ""
Dim connection As New MySqlConnection(connectionString)
'Dim cmd As New MySqlCommand(Query, connection)
connection.Open()
Query = "insert into Quotes(query follows...................)
retriveDataToDropDown()
retriveDataToDataGrid()
connection.Close()
End Sub
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DataSet DSContact = DMLObj.Load_DataSet("Usp_LoadData", "ContactPerson", idf); foreach (GridViewRow row in GVContactPerson.Rows) { ((TextBox)row.FindControl("txtContactName")).Text=DSContact.Tables[0].Rows[0]["ContactName"].ToString(); ((TextBox)row.FindControl("txtemail")).Text = DSContact.Tables[0].Rows[0]["ContactEmailID"].ToString(); ((TextBox)row.FindControl("txtmob1")).Text = DSContact.Tables[0].Rows[0]["ContactMobile"].ToString(); Session["contact"] = ((TextBox)row.FindControl("txtContactName")).Text; string pid = Convert.ToString(DMLObj.getid("Select ContactPersonID from tbl_ContactPersonDetails where ContactName='" + Session["contact"].ToString() + "'")); Session["contactID"] = pid; }
Forms Data Controls :: Empty Data Text In Gridview When Page Load Itself
Mar 21, 2011I have a 3 text boxes. When i enter datas in and click the button it displays the gridview with filtered data. Now my problem is if there is no data in gridview it has to show "no data" so I used emptydatatext property.. The problem is, in the page load itself it shows "no data"
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if(!Ispostback)
{
gridview databind code
[code...
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Dec 20, 2010Is there a way to load a gridview with a button rather than on page load?
Right now I'm trying by making enabled = false and visibile = false and then changing them via c# on the button_click event but its not working out. I get the error:
Data keys must be specified on GridView 'GridView1' before the selected data keys can be retrieved. Use the DataKeyNames property to specify data keys.
The gridview is dependent on several dropdown boxes which is why it shouldnt load until the button is pressed.
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Jun 17, 2010i am trying to load images from the northwind database (categories table) into grid view control. But it does not seems to work.
Default.aspx
[Code]....
[Partial] Default.aspx.cs
[Code]....
[Partial] ImageHandler.ashx
[Code]....
Forms Data Controls :: Unable To Load URI Images In The Gridview
Jan 6, 2011here below what i'm doing:
1. retrieving data using twitter APIs,
2. loading these data in a datatable using Linq to XML
3. binding the datatable in a gridview
twitter APIs includes URI images, and also strings that includes <a href> tags (i.e. hello world <a href="asp.net">asp.net</a> hi again)
the problem is that i'm not able to load these uri images in the gridview neither the hyperlinks instead i'm dipslaying the uri of the image and the tag itself
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Apr 22, 2010I have the following sorting code that works find when clicking on a column header in a gridview.
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how to do that?
Here's my code:
[Code]....
Forms Data Controls :: Displaying A GridView On Page Load?
Jan 29, 2010I want to insert a record in the gridview and i have designed it as the fig: below shows.
Initially there is no data in the datatable to which the gridview is bound to,so the gridview is not displayed when the page load,ok
I want to ask that is it possible to display Gridview on page load with only the header and the footer?
i.e;the user can see the header names and the textbox and drop down list at the foorter so that they can insert data in the grid?
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Aug 16, 2010i'm tring to clear the gridview in each page load, because each time my code insert a data the pervious data still shwoing in the page ,
i only want the inserted data to show not the whole data in the gridview
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Oct 18, 2010I have a GridView that I would like to load at a specific page that has an item with same ID as the QueryString parameter in the URL.
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Aug 24, 2010I have a Linkbutton on a Gridview which has got the below RowDataBound:
[Code]....
The above javascript will close the page automatiically. My intent is to close the page after the Link in the template field is clicked, but here the page closes automatically when its loaded.
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Nov 7, 2011I tried to make an Update Panel to not load the whole page every time I need to load data from the Database server so I add Update Panel and add this java script code in every content page in my web site.
Code:
<script language="javascript" type="text/javascript">
<!--
with( Sys.WebForms.PageRequestManager.getInstance() )
[code]...
It works good but after end of the request I got a popup message say "NaN" every time I don't know from where it comes and of course it looks very bad for the client if got this popup.