I am attempting to bind data from a dropdown list that was populated from another datasourceID. I've bolded what I believe is relevant to this issue in the code below. But basicly its binding the proper county on the pull down menu but when I hit form submit it dosnt postback that info instead its null.
[code]....
Is it possible to bind two separated datasources to one dropdown list such that they are both alphabetically sorted and seprated by some sort of line. I know there is a way to insert elemets manually, but I'm not sure of the 2 separate datasources. I've serached this forum and while there were several posts none of them offered any workable solution.
View 5 Repliesso i have a FormView bound to an SQL datasource.
Using the Auto generated insert/update/delete. "Cannot insert the value NULL into column 'UniqueID'"
The FormView Default view = Edit
I have set the PKey and the Datasource is loading the record from a session. The record is loading no problem, just wont update.
I have this error when trying to insert a new record through a 'New' button in asp:DetailsView control. Error details:Message: Sys.WebForms.PageRequestManagerServerErrorException: Cannot insert the value NULL into column 'idUser', table 'C:INETPUBWWWROOTVIEWS1APP_DATADBSEARCHRESULTS.MDF.dbo.UserDetails'; column does not allow nulls. INSERT fails.I have an typed dataset xsd & adapter, where i automatically generate delete, update, insert commands. I also use SqlDataSource.The field idUser doesn't allow nulls on database level, and in the xsd I marked the following properties:AllowDBNull = false, AutoIncrement = true, AutoIncrementSeed = 0, AutoIncrementStep = 1, ReadOnly = true, Unique = trueMy code is:
[Code]....
How to solve the problem or where I should look for the problem?p.s. If i have in DetailsView, idUser field properties set: InsertVisible="True", ReadOnly="False" and i enter a value manually, the records successfully inserts.
I have a formview in which I have a dropdown list that displays a list of owners. In case the list does not have the correct owner for the user I have added functionality for them to add a new owner to the database table that populates the list. I did this by including a textbox and an Insert button in a panel. When the user clicks the new owner insert button I would like to re-databind the dropdown list so that they will see the owner they added and be able to select it.
When I add ddl_owners.databind to my button click code it gives me an error. "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
I don't want to re-databind the entire formview because then it deletes all the information on the form that the user has already keyed in.
I have "Testdtabse" it's consists of the Table like aaa,bbb,ccc,ddd,eee etc.. I want to bind that table names in to My droipdown list box..
View 5 RepliesHow to bind dropdown list in Gridview(without using asp.listitem)
View 4 RepliesI have created an asp.net customizable gridview where user will be able to add and delete data. Now I face some proplem with this gridview. now I want to add a dropdown list (which is dynamically bind with database) inside the grid. I created code and it bind well. when the page is post back previous selected dropdown list value lose and set to selectedIndex=0; For this reason I used if(!page.Ispostback) and put the dropdown binding code inside this. Here I faced a problem. The problem is when I want to add data inside grid the dropdownlist missin bind. How can I overcome this problem? For your kind observation I given entire code below:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
CellPadding="4" ForeColor="#333333" GridLines="None"
onrowdeleting="GridView1_RowDeleting"
onrowdatabound="GridView1_RowDataBound">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:TemplateField HeaderText="SL">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("RowNumber") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("RowNumber") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Material">
<ItemTemplate>
<asp:DropDownList ID="drpMaterial" runat="server">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox ID="txtQuantity" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="txtQuantity" ErrorMessage="Required Field Missing">*</asp:RequiredFieldValidator>
</ItemTemplate>
</asp:TemplateField>...............................
Is it possible to display two column values from a SQL database in to one DDL? I have been trying to write a SQL query, where in I select two fields to be displayed in the DDL but when I run the application it only displays one. Not sure why. Here is my code below:
<asp:DropDownList ID="DropDownList8" runat="server"
DataTextField="LATA"
DataValueField="LATA"
onselectedindexchanged="DropDownList8_SelectedIndexChanged"
DataSourceID="SqlDataSource1">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:Inventory_DBConnectionString %>"
SelectCommand="SELECT DISTINCT [LATA], [LATA Name] AS LATA_Name FROM [CA] WHERE ([SWITCH ID] = @SWITCH_ID)">
<SelectParameters>
<asp:QueryStringParameter Name="SWITCH_ID" QueryStringField="ddl1"
Type="String" />
</SelectParameters>
</asp:SqlDataSource>
populating the dropdownlist with column name. I have a gridview that has 7 columns . I want to have a textbox search and dropdownfield where user can select column name and type a word in search box and click search so that text for that column name is being search and displayed in grid. how I can fetch just column names from DB and search ?
View 1 RepliesI am stuck at this point "Displaying a dropdown list of Categories with a --None -- Option. I want the gridview control to display 2 dropdown list one in read-only mode and the other in edit mode. When a record is in read-only mode, the dropdownlist's enabled property will be set to false."When it's on a read-only mode, it doesn't display the selected Category. it shows but the "No Category". When i click on edit to edit or change category, it doesn't display the selected category.
The example is given below( I am reading the book Sams Teach yourself ASP.NET 2.0 by Scott Mitchell. page 628)
<asp:Label ID="UserIdValue" runat="server" Visible="False"></asp:Label>
<asp:SqlDataSource ID="picturesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT * FROM [Pictures] WHERE ([UserId] = @UserId) ORDER BY [UploadedOn] DESC"
DeleteCommand="DELETE FROM [Pictures] WHERE [PictureID] = @PictureID"
InsertCommand="INSERT INTO [Pictures] ([UserId], [CategoryID], [Title], [Description], [UploadedOn]) VALUES (@UserId, @CategoryID, @Title, @Description, @UploadedOn)"
UpdateCommand="UPDATE [Pictures] SET [UserId] = @UserId, [CategoryID] = @CategoryID, [Title] = @Title, [Description] = @Description, [UploadedOn] = @UploadedOn WHERE [PictureID] = @PictureID">
<DeleteParameters>
<asp:Parameter Name="PictureID" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="UserId" />
<asp:Parameter Name="CategoryID" Type="Int32" />
<asp:Parameter Name="Title" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="UploadedOn" Type="DateTime" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId" PropertyName="Text"/>
</SelectParameters>
<UpdateParameters>
<asp:Parameter Name="UserId"/>
<asp:Parameter Name="CategoryID" Type="Int32" />
<asp:Parameter Name="Title" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="UploadedOn" Type="DateTime" />
<asp:Parameter Name="PictureID" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
<br />
<asp:SqlDataSource ID="categoriesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId)">
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId" PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:SqlDataSource ID="maxPictureIDDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>" SelectCommand="SELECT MAX(PictureID)
FROM Pictures
WHERE UserId = @UserId">
<SelectParameters>
<asp:ControlParameter ControlID="UserIdValue" Name="UserId"
PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:Label ID="cannotUploadImageMessage" runat="server"
Text="The photo could not be added to your album either because you did not specify a file to upload or the file specified was not a JPEG image with the file extension .JPG"></asp:Label>
<br />
<asp:DetailsView ID="dvPictureInsert" runat="server"
DataSourceID="PicturesDataSource" Height="50px" Width="125px"
AutoGenerateRows="False" CellPadding="4" DataKeyNames="PictureID"
DefaultMode="Insert" ForeColor="#333333" GridLines="None">
<AlternatingRowStyle BackColor="White" />
<CommandRowStyle BackColor="#D1DDF1" Font-Bold="True" />
<EditRowStyle BackColor="#2461BF" />
<FieldHeaderStyle BackColor="#DEE8F5" Font-Bold="True" />
<Fields>
<asp:TemplateField HeaderText="Picture">
<InsertItemTemplate>
<asp:FileUpload ID="imageUpload" runat="server" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server"
ControlToValidate="imageUpload" Display="Dynamic"
ErrorMessage="There was no file selected" ValidationGroup="PictureAdd"></asp:RequiredFieldValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Category" SortExpression="CategoryID">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("CategoryID") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="pictureCategory" DataSourceID="categoriesDataSource"
runat="server" DataTextField="Name" DataValueField="CategoryID"
SelectedValue='<%# Bind("CategoryID") %>'
Visible='<%# Bind("CategoryID") %>' AppendDataBoundItems="True">
<asp:ListItem Selected="True" Value="">-- Select Category --</asp:ListItem>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("CategoryID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Title" SortExpression="Title">
<EditItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Title") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Title") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" Display="Dynamic"
ErrorMessage="you must provide a name for the title"
ValidationGroup="PictureAdd"></asp:RequiredFieldValidator>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("Title") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description" SortExpression="Description">
<EditItemTemplate>
<asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("Description") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Description") %>'
i've created a webform with one gridview having connected with the database using datasource. i.e password database with three colomn .
now want to insert the custom dropdown button using server control for each column.
when i select the dropdown list the list should display the value as required.
e.g if i click the uname dropdownlist then it should show the list of names.
if i click on pwd dropdownlist then it should show the list of numbers.
if i select any one of the value in the dropdown list then it should insert into the
database.
can i get code on this type of question...?
I am using Visual studio 2010 express and I have a details view databinded to an sql database table. When I use the Insert option on the view it causes an error due to it trying to insert a null into the primary key field. If the Insert function does not create a new primary key entry how is it created?
View 9 RepliesI have a database field called ImageLocation, I have the ImageUrl property bound to: Eval("ImageLocation", "{0}")I would like to bind the Visble property to false if the ImageLocation is null data. I can not figure out how to set the control properly, currently the Datalist shows me all the data and when the image location is null it shows me the name of the Hyperlink control which happens to be Hyperlink2.
View 2 RepliesI have gridviwe having 2 columns:
1) DocNumber 2)Title
query select docnumber,title from tbl_docs.
BindwithGridviwe(sql);
Now the issue is that that every document doesn't has document number. I want to make invisible the docuNumber column of the grid viwe if all values in the docNumber retrieved are null.for example:
docnumber tite
null Document 1
null Document 2
null doucment 3
null document 4
if returned result match above where all docnumber are null then make the gridviwe docnumber column ivisible eslemake the greidviwe column visible.
I have a situation where I want to show the selected records out of total records for a product of an employee
1) There is a checkbox list bind to <List> of objects from object datasource (For total items in list)
2) Now I want to check the selected items for a particular record in this list
3) For this purpose I have another list of <List> selected items returned by data access layer (For selected items for that employee )
4) How do I bind the selected objects with the total items list ?
5) In spaghetti coding model it was all too easy just by binding the checkbox list with a sql data source and running a for each on form load
I have a databound dropdownlist and have a problem with the default value it selects.When I attempt to edit a record the dropdownlist shows the first value in the list rather than the current value. I want the dropdown list to display the current value.
I'm sure this is very simple but I'm very new to ASP.NET.
I'm using .NET version 4.
sample SQL data:
table1:
eid ename
1 vijay
2 shankar
table 2:
id eid sal
1 1 4000
2 1 3000
3 2 2000
i want to bind the below data format in repeater.
vijay
4000
3000
shankar
2000
I have database status field Bit(0/1) this values binding to gridview column. i want to show record status instead of 0 and 1 display open or close
View 5 Repliesi have datalist.i can bind datalist but problem is that null value does not bind.but all values are not null.
my scenerio is asign click btn click then view open then insertion and save.if free class btn click then another view open and then insertion...in asign class it can bind but free class not bind.while i m providing day and period also.so why they canot bind?
I have been struggling for a while 72 hours with this .When I update the form view a NULL value is inserted in my product ID field instead of the productID from the drop down list.
here is the code for the form view.
<asp:FormView ID="FormView8" runat="server" DataKeyNames="LoadID,ProductID"
DataSourceID="Pro1SQL">
<EditItemTemplate>
LoadID:
<asp:Label ID="LoadIDLabel1" runat="server" Text='<%# Eval("LoadID") %>' />
[Code]....
For insertion, I have dropdown inside a form.
The dropdown is linked with sqldatasource which is retreiving distinct records from table.
In table there is no NULL value.
What I want to do that when user will access Insert page to insert record then like all textboxes, dropdown should also load with NULL value.
i wanted to retrieve things from the data base and perform mathmatical operations on it then post it to the user, so i was told to use the bullited list and bind it to the object dataSource
how to perform such thing??
datalist not bind when i click asign classs button then enter some value and save.. datalist is bind when i click free class button then enter some value and save ... data list is not bind and show show that record...but it will save in database
why data list is not bind in free class button?
i bind through datalist.databind()
i m unable to bind data inside checkbox list. this is my code
protected void dlBreeds_ItemDataBound(object sender, DataListItemEventArgs e)
{
try
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
CheckBoxList cbl = e.Item.FindControl("cblAnimaltype") as CheckBoxList;
if (cbl != null)
{
cbl.DataTextField = DataBinder.Eval(e.Item.DataItem, "BGName").ToString();
cbl.DataValueField = DataBinder.Eval(e.Item.DataItem, "ID").ToString();
}
}
}
catch (Exception ex)
{
pnlStatus.Visible = true;
lblMessage.Text = ex.Message.ToString();
}
}
protected void BindAnimals()
{
//*********************************************************************************
// Purpose : To bind breeds in listbox
// Inputs : Nothing
// Returns : Nothing
//*********************************************************************************
DataSet ds = new DataSet();
try
{
ds = InvertebrateProviders.GetBreedsName_Invertebrate(1);
if (ds.IsInitialized)
{
DataView dv = ds.Tables[0].DefaultView;
dv.RowFilter = "ID<>0";
dlBreeds.DataSource = dv;
dlBreeds.DataBind();
}
}
catch(Exception ex)
{
pnlStatus.Visible = true;
lblMessage.Text = ex.Message.ToString();
}
}
<asp:DataList id="dlBreeds" runat="server" DataKeyField="BGName" OnItemDataBound="dlBreeds_ItemDataBound" RepeatDirection="Vertical">
<ItemTemplate>
<asp:Panel ID="pnbBreed" BorderColor="#7f9db9" Height="129px" Width="220px" ScrollBars="Vertical" BorderWidth="1px"
BorderStyle="solid" runat="server" Visible="true">
<asp:CheckBoxList ID="cblAnimaltype" DataTextField='<%#Eval("BGName") %>' DataValueField='<%#Eval("ID") %>' AutoPostBack="True" runat="server" Height="129px" CellPadding="0" CellSpacing="0"
OnSelectedIndexChanged="cblAnimaltype_SelectedIndexChanged" Width="200px" >
</asp:CheckBoxList></asp:Panel>
<asp:CheckBoxList ID="cblBreeds" Height="90px" Width="200px" runat="server" ></asp:CheckBoxList>
</ItemTemplate>
</asp:DataList>
