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Gridview returning empty even when there is data. I want to use data in the gridview to update another database
Per my comment above you may want to do something like: List<string> _OrderIds = new List<string>(); DataTable table = gvOrderLines.DataSource as DataTable; foreach (GridViewRow gvr in table.Rows) { Label myOrderIDLablel = (Label)gvr.FindControl("lblOrderID"); //find control since it is a template field _OrderIds.Add(myOrderIDLablel.Text); } I hope this get you headed in the right direction.

Categories : C#

display gridview data in another page or other gridview with row data in editable mode
You need to add RowCommand Event in GridView. <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowCommand="GridView1_RowCommand"> <asp:LinkButton ID ="lnkEdit" runat ="server" CommandArgument='<%#Eval("Recordid")%>' CommandName ="cmdEdit" Text ='Edit'></asp:LinkButton> </asp:GridView> Here rocordid is the id of your record. In Page behind you need to write code. protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName == "cmdEdit") { string Recordid = Convert.ToString(e.CommandArgument.ToString()); Response.Redirect("EditPage.aspx?recordid="+Recordid ); } } On EditPage you can get recordid from the query string and can fetch the record form the datab

Categories : Asp Net

Extract index(row) from a textbox in a gridview in asp.net
The parent of the DataControlFieldCell will be the GridViewRow: protected void TextBox_Email_TextChanged(object sender, EventArgs e) { TextBox thisTextBox = (TextBox)sender; GridViewRow currentRow = (GridViewRow)thisTextBox.Parent.Parent.Parent; int rowindex = 0; int idx = currentRow.RowIndex; string ArticleID = (string)GridView1.DataKeys[idx].Values[1]; }

Categories : Asp Net

Gridview onRowCommand fired gridview no data
Problem in this line ID = gvWorkshop.DataKeys[grdrow.RowIndex]["workshopID"].ToString(); You have mention "grdrow" in place of "row". please change it to ID = gvWorkshop.DataKeys[row.RowIndex]["workshopID"].ToString();

Categories : C#

ASP.Net object reference error when writing data to xml file via Gridview Empty data template
The issue is when you have the xml file without 'po' node. You can move the node to a new method like: Private Function CreatePOSDataset() As DataSet Dim oDs As New DataSet() oDs.DataSetName = "newshipmentnotification" oDs.Tables.Add("pos") oDs.Tables("pos").Columns.Add("pos_Id") oDs.Tables("pos").Columns("pos_Id").ColumnMapping = MappingType.Hidden oDs.Tables.Add("po") oDs.Tables("po").Columns.Add("ponumberID") oDs.Tables("po").Columns.Add("pos_Id") oDs.Tables("po").Columns("pos_Id").ColumnMapping = MappingType.Hidden oDs.Tables("po").Columns.Add("ponumber") Dim pos_po As DataRelation = oDs.Relations.Add("pos_po", oDs.Tables("pos").Columns("pos_Id"), _ oDs.Tables("po").Columns("pos_Id"))

Categories : Asp Net

Export Gridview Data to Excel in ASP.NET Linq data bind
It's pretty easy to set up the excel export that will export only the gridview. This has been tested and will only export the gridview that appears on your given web page. For your C# code use the following: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class vxcel_export : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button2_Click(object sender, EventArgs e) { Response.Clear(); Response.AddHeader("content-disposition", "attachment;filename=file-name.xls"); Response.ContentType = "application/vnd.xlsx"; System.IO.StringWriter stringWrite = new System.IO.StringWriter(); Sys

Categories : Asp Net

Image is saved to the database as binary data, now I need to extract the data and put it in an tag
You should put the URL of your image in the img's src attribute and not a byte array as you do now: //Wrong: byte[] productImg = (byte[])dr["PRO_Img"]; <img src='" + productImg + "' alt='' /> In order to achieve it, take a look at this answer about how to create an ASP.NET ASHX Handler and eventually retrieve the image using a URL: Display image from database in ASP.net with C#

Categories : C#

Improve page rendering time having gridview, child gridview and grand child gridview on it
You are creating way too many grids. A grid is an expensive component. You could alter your user interface to allow users to select an Item and bind the inner grid only on selection. This ensures that rather than one grid per row or parent grid, you will have only one child grid displayed at a time.

Categories : C#

how to extract data from mongo collection for data warehouse use
give a try to pentaho kettle. https://anonymousbi.wordpress.com/2012/07/25/creating-pentaho-reports-from-mongodb/

Categories : Mongodb

Extract PDF spreadsheet data into a Python data structure
First the easy part: yes, PDFMiner is probably your best option :-) The "probably" in the previous sentence should give you a hint... PDF extraction can be a kind of black magic; everything depends on how well-formed / predictable your source PDFs are. If you're lucky, the quickest solution may be to use an established tool to transform the PDFs to some other format that can easily be parsed (HTML comes to mind) and then extract the tables from there. In fact that is exactly what pdftable does... Sometimes this may not work and you need to use the visual clues from the page to divide up the table cells. In that case, pdfminer comes in handy. It can tell you where all the text is situated and has things like a PostScript renderer to "draw" the lines that other extraction tools cannot see

Categories : Python

Slow get data from data gridview into SQL Server
A fast way to insert many records into an SQL Server's table is to use the SqlBulkCopy class. First you will need a function which will copy the content of your DataGridView into a DataTable. Private Function GetDataTable() As DataTable Dim DataTable1 As New DataTable Dim i1, i2, RowsCount1 As Integer For i1 = 0 To DataGridView1.Columns.Count - 1 DataTable1.Columns.Add(DataGridView1.Columns(i1).Name, DataGridView1.Columns(i1).ValueType) Next If DataGridView1.AllowUserToAddRows = True Then RowsCount1 = DataGridView1.Rows.Count - 1 Else RowsCount1 = DataGridView1.Rows.Count End If For i1 = 0 To RowsCount1 - 1 DataTable1.Rows.Add(DataTable1.NewRow) For i2 = 0 To DataGridView1.Columns.Count - 1 DataTabl

Categories : Vb.Net

Getting data from gridView
You could add Name as another datakeyname <asp:GridView ID="GridViewCategory" runat="server" OnSelectedIndexChanged="GridViewCategory_SelectedIndexChanged" OnPageIndexChanging="GridViewCategory_PageIndexChanging" AllowPaging="True" DataKeyNames="Id, Name" CellPadding="4" ForeColor="#333333" GridLines="None" > <Columns> <asp:BoundField DataField="Id" HeaderText="Идент. номер" ItemStyle-Wrap="false" ItemStyle-Width="20%" /> <asp:BoundField DataField="Name" HeaderText="ALl name For" ItemStyle-Wrap="false" ItemStyle-Width="60%" /> <asp:CommandField SelectText="Избери" ShowSelectButton="True" /> </Columns> Then in your code behind: protected void GridViewCategory_Select

Categories : Asp Net

C# Data GridView, large data
Read Efficiently Paging Through Large Amounts of Data for a walkthrough of setting up custom paging with a GridView control. You will need to have a separate query for the total record count, which should be done first. Then you can calculate the number of pages the grid will have in order to build the paging controls. Total record count / records per page = number of pages Note: the records per page may be hard-coded in the GridView markup or you can have a control on your page that allows the user to pick a page size.

Categories : C#

Concatenate Gridview Data
If you saying to display in particular format of grid view data then there is no other way than running loop of customer name and finding its occurrence and merging it, rather than you should try to join the data source , so i suggest to show schema of data source so that any one can help

Categories : C#

Get data from the row of a Dropdown in a Gridview
Check the GridView's DataSource before you do the DataBind(). Since you're missing the full ASPX markup, I'm not sure if you're setting the data source programmatically or with a SqlDataSource. In any case, what will happen often with programmatically-set Data Sources is that they disappear on a PostBack, and when you call that DataBind, you're really DataBinding it to null, which would explain why you're getting string.Empty ("") for the Label's Text property.

Categories : Asp Net

How can we put data on particular row index on GridView
but you are assigning to TextBox (TextBox)grdSale.Rows[Index_Next] .FindControl("txtDisplay") = Val_Next.ToString(); which is wrong in first place, as Left side is System.Web.UI.WebContols.TextBox and right side is String . You should try and set the Text of Found TextBox. You should be doing ((TextBox)grdSale.Rows[Index_Next] .FindControl("txtDisplay")).Text = Val_Next.ToString();

Categories : Asp Net

Data Binding in GridView
You'll need to bind a list, like a List<FavData> or an ObservableCollection<FavData> to the Hub. Right now, you've got a GridView that among many other attributes, includes initialization of the ItemsSource property. This property is used as the source for a list of items. <GridView x:Name="itemGridView" ItemsSource="{Binding Items}" </GridView> The binding is specified as {Binding Items} which means that for whatever object is bound currently to the Hub, grab the List stored on the Items property. As you currently had set a single FavData instance to the Hub via the DataContext property, and it did not have a property called Items, there was nothing to display. So, my suggestion is to create a list of FavData instances and bind that to the Hub instance instea

Categories : C#

Add data from two databases into one gridview
You can manually bind your gridview using DataBind() to an in memory union of the three database tables. Look at the LINQ Union() extension method / operator. Another approach would be to create a view over the three databases and bind to that.

Categories : C#

Getting rid of duplicated data in a GridView
Are you sure that you don't have your aggregates backwards in your SQL? I would have expected it to be written more like this: SELECT people.name, Max(comage.age) age, Max(grad.date) date FROM people INNER JOIN comage ON people.term = comage.term INNER JOIN grad ON people.term = grad.term WHERE people.ID = @ID GROUP BY people.name ORDER BY LastName Which would produce a result set like this: name | age | date ------------------ Jeff | 23 | DEC Jake | 25 | SUM

Categories : C#

How to load Data from a second table in GridView
Try using join and select the user name too for your object data source and use the user name to display it instead of user id. Refer this link How to do a join in linq to sql with method syntax?

Categories : Asp Net

Accesing data from Roles into gridview
You can also achieve same kind of thing by making the extra column of roles in the database and extracting the value of role during the time of login. Now you can store this role in any kind of variables like cookies ,sessions etc and performing the following check in the masterpage if(session[role]==null) { Response.Redirect("Home.aspx"); } else if(session[role]!="User") { Response.Redirect("Home.aspx"); }

Categories : Asp Net

retrieve data from gridview row to an asp.net form
Add GridView RowCommand event and command argument for image button where you can pass an id or something to determine the current row. <asp:GridView onrowcommand="gvRowCommand" ID="GridView1" runat="server" Height="150px" Width="284px" CssClass="tb" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"> <ItemTemplate> <asp:ImageButton CommandArgument='<%# Eval("SomeId") %>' ID="booking" runat="server" HeaderText="Booking" ImageUrl="booking_icon.ico" /> </ItemTemplate> C# protected void gvRowCommand(object sender, GridViewCommandEventArgs e) { var someId = e.CommandArgument; } VB.Net Protected Sub gvRowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Ha

Categories : Asp Net

Manually binding data to Gridview
OK. So, regarding the comments: This is my personal experience. I had a SQL query that returned this: |-----------------------------------------------| |Column 1 |Column 2 |Column 3 | |---------------|---------------|---------------| |"c1foor1bar" |"c2foor1bar" |"c3foor1bar" | |"c1foor2bar" |"c2foor2bar" |"c3foor2bar" | |"c1foor3bar" |"c2foor3bar" |"c3foor3bar" | |---------------|---------------|---------------| My aspx page looked like this: <asp:GridView runat="server" id="GridView1" AutoGenerateColumns="false"> <asp:BoundField runat="server" DataField="strFirst"></asp:BoundField> <asp:BoundField runat="server" DataField="strLast"></asp:BoundField> </asp:GridView> And my pageload looked like this:

Categories : C#

Gridview rebind data with new parameters
Take a update button Write method for update function public int update_method(string ParameterName) { module c = new module(); c.DB_Connection(); int i; string QRY = "UPDATE TableName SET Parameter_Name='" + ParameterName + "' WHERE Parameter_Name='" + ParameterName + "'"; SqlCommand CMD = new SqlCommand(QRY, c.con); i = CMD.ExecuteNonQuery(); return i; } on button click protected void ButtonUpdate_Click1(object sender, EventArgs e) { update_method(ParameterNametxt.Text); } update_method(farm, common_obj);

Categories : C#

Not retrieving data from Gridview to Excel
I think your problem is in the select statement Try something like SELECT * FROM Customer WHERE CustomerID like '%" + txtCustomerID.Text + "%'" Further to that, you might want to look at using DataAdapter Parameters to avoid SQL Injection

Categories : C#

dynamic data binding gridview
Your DataTable part is fine and continue to add the True/False text as per the logic. Now you should handle the GridView part. So, define an event handler for the OnRowDataBound event of GridView. In this event only, check for the Text property of the cells, and if True/False, clear the cells and add the required image. <asp:GridView ID="GridView1" OnRowDataBound="GridView1_RowDataBound" ... /> And your event handler will have code as below: protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { Image chkImage = new Image(); chkImage.ImageUrl="~/images/Checked.png"; Image UnchkImage = new Image(); UnchkImage.ImageUrl = "~/images/UnChecked.png"; if (e.Row.RowType == DataControlRowType.DataRow) {

Categories : Asp Net

Gridview image data from sqlite
I hope I good understand what you want to do. You can do this using caching images - it will be the fastest way. (Caching images library - lazy list) Then you can put into new activity link into images (which is showing in gridview) and in new activity load that images. Or if you want to use database - load images into database as table of int which you can get from bitmap (or just from ImageView)

Categories : Android

C# Retrieving data from ListView with GridView
My answer was in Travis J's comment somewhat. I knew that I may have needed to create this table in a different way so that the output of SelectedItem does not come up as anonymous type. So I have redone how the table is constructed and am now using DataTable. private void Button_Click_1(object sender, RoutedEventArgs e) { Operate op = new Operate(); DataTable users = op.GetUser(); if (users != null) { ResultsView.ItemsSource = users.DefaultView; } } private void ListView_SelectionChanged(object sender, SelectionChangedEventArgs e) { if (ResultsView.SelectedItem != null) { DataRowView line = ResultsView.SelectedItem as DataRowView; string stuff = line.Row.ItemArray[2].ToString(); MessageBox.Show(stuff); } } And this made

Categories : C#

Keeping Data in GridView after PostBack
This is by design. The problem here is that the SqlDataSource gets re-created when the page loads it does NOT maintains the selectcommand on postback but rather reverts to the one that was set when the DataSource was created. So you need to tell the the SqlDataSource what it had for SelectCommand when it last loaded correctly. Just store the SQL COMMAND in ViewState and enable encryption to protect the contents by setting ViewStateEncryptionMode on the Page directive. [ Always choose security as a standard ] <%@ Page ViewStateEncyptionMode="Always" %> In your button click event store your new command in view state: ViewState["currentCommand"] = "SELECT * FROM USERS WHERE user_id = 1"; UsersSource.SelectCommand = ViewState["currentCommand"]; GridView1.DataBind(); Now in you

Categories : C#

What is the fastest way to load a big data set into a GridView?
I thin there is only one way to load the large data set in to grid-view and it the one you are using right now but if you want to make the performance better I highly recommend using pagination so you have chanks of data loaded on every page therefore you will increase the loading time http://sivanandareddyg.blogspot.com/2011/11/efficient-server-side-paging-with.html http://www.codeproject.com/Articles/125541/Effective-Paging-with-GridView-Control-in-ASP-NET http://www.4guysfromrolla.com/articles/031506-1.aspx

Categories : C#

Unable to loading data into gridview
Sounds as if you have AutoGenerateColumns set to true for the GridView1. You can instead try explicitly specifying the columns in the .aspx file in the order that you would like these columns to appear and bind each column with the appropriate field from the Datasource. <asp:GridView runat="server" id="GridView1"> <Columns> </Columns> </GridView>

Categories : C#

how to get gridview all rows data when using paging
You need to save the data in temporary storage in PageIndexChanging event of GrIdView. On final save send the datatable to Sql Server Procedure or loop through the datatable and save it in database. Follow the steps: protected void grdView_PageIndexChanging(object sender, GridViewPageEventArgs e) { fnStoreGridData(); } private void fnStoreGridData() { DataTable TempDataTable = new DataTable(); if(Session["Data"]!=null){ TempDataTable = Session["Data"] as DataTable; } else{ TempDataTable.Columns.Add("exCourse", typeof(string)) ; TempDataTable.Columns.Add("exUniversityCourse", typeof(string)) ; } foreach (GridViewRow row in gvExportCourse.Rows) { Label exCours

Categories : Asp Net

How to add Data To GridView From TextBox & DropDownList
Put another button to insert data into database and write below code on click event. protected void Button2_Click(object sender, EventArgs e) { foreach (GridViewRow oItem in GridView1.Rows) { string str1 = oItem.Cells[0].Text; string str2 = oItem.Cells[1].Text; string str3 = oItem.Cells[2].Text; insertData(str1, str2, str3); } } public void insertData(string str1,string str2,string str3) { SqlConnection cn = new SqlConnection("Your Connection strig"); string sql = "insert into tbl1 (column1,column2,column3) values ('" + str1 + "','" + str2 + "','" + str3 + "')"; SqlCommand cmd = new SqlCommand(sql, cn); cmd.ExecuteNonQuery(); } Thanks

Categories : C#

how i can insert data into database from gridview
Try this SqlConnection connStr = new SqlConnection ("Data Source=SERVER;Initial Catalog=HRPR;Persist Security Info=True;User ID=hr;Password=11"); SqlCommand com; protected void Button2_Click(object sender, EventArgs e) { SqlConnection connStr = new SqlConnection("Data Source=SERVER;Initial Catalog=HRPR;Persist Security Info=True;User ID=hr;Password=11"); connStr.Open(); foreach (DataGridViewRow row in dataGridView.SelectedRows) { com = new SqlCommand("INSERT INTO tblExmWrittn(column1,column2....) VALUES( '" + row.Cells[0].Value.ToString(); + "', '" + row.Cells[1].Value.ToString();+ "' , '" + row.Cells[2].Value.ToString();+ "' ,'" + row.Cells[3].Value.ToString();+ "','" + row.Cells[4].Value.ToString();+ "' ,'" + row.Cells[5].Value.ToString();+ "','"

Categories : C#

How can I have gridview showing a different value than its data source?
You can create a new column and set the Property "UnboundType" to object. In the "CustomUnboundColumnData" event you can fill this. So you dont have any link to your datasource. Here is small example: http://www.devexpress.com/Support/Center/Example/Details/E3354

Categories : C#

Why GridView data is generated as links
You are using a ButtonField, you might want to use a BoundField instead: Dim id as New BoundField id.HeaderText = "id" id.DataField = "id"

Categories : Dotnet

Extract only data with certain value
You're mixing ' (single quote) and ` (back tick) by the way. See Here As to your question, you can easily add more requirements using AND. SELECT * FROM messages WHERE `to`='Dave' AND `from`='John' ORDER BY id ASC Now it shows only messages from John!

Categories : Mysql

Accessing data from dynamic control in gridview
You can assign a GridviewRow like this in your button click method: GridViewRow gridViewRow = (GridViewRow)(((Control)sender).NamingContainer); When assigning value you should change it to: TextBox tb = ((TextBox)gridViewRow .FindControl("ID2VAL4")); where gridViewRow is a GridViewRow that is used not the GridView itself.

Categories : Asp Net

Delete data in sql table using c# and present it in gridview
The problem is that probably no empID with the value 'empID' exists.. You didn't put the value of the empID in the command, but added an exact string of 'empID', which cannot be found in your table. Put the empID value as a parameter like Icarus advised.

Categories : C#

Updating parsed JSON data into GridView
Change to it with by: @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); // if result code 100 if (resultCode == 100) { // if result code 100 is received // means user edited/deleted product // reload this screen again Intent intent = getIntent(); startActivity(intent); }}

Categories : Android



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