Forms Data Controls :: Gridview - Won't Return Anything At All Unless Provide Values For All 4 Parameters
Feb 25, 2011
i've got a gridview and sql datasource. Its connected to a stored proc that has four optional parameters. In VS when i set up the data source, if i use the test option, and dont supply any values for the sproc, it returns all the values in the table which is what it should do. Now when i try to fill the gridview, it wont return anything at all unless i provide values for all 4 parameters.
It's not even trying to search because i had sql profiler open and nothing shows up until i provide all 4 values. any idea why it's doing this? How do i get it to actually bind even if provide less then all 4 (or none) of the values?
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Jan 25, 2010
I have a multiple page gridview and edit link on each row.
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May 28, 2010
I'm new to web dev and c# so please bare with me. I am trying to create a dynamic gridview in a web form for users to to answer questions with (code below).
The dificulty im having is that i am nesting a dropdwonlist in the gridview and want to be able to dynamically set the list values based on parameters (of the row they are on). These values are in the main dataset for the gridview as each row represents a questionid and question text and then a ddl for the criteria...
I just don't know how to set the values for the dropdown all the code so far is below... just need to be able to populate the dropdowns with the relevant values.
I have created a stored proc to return the different criteria based on the questionid and questionGroupid which is the dataset that populates the other fields in the gridview: dbo.usp_QuestionCriteria @QuestionGroupId, @QuestionId
I have added this as a tableadapter called criteriaTableAdapter in a xsd file as well using the wizard... not sure if this is the right option though or just use the same method as i have for the other stored procedure as in the code below:
[CODE
]using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["Sql"].ConnectionString);
con.Open();
SqlCommand com = new SqlCommand("usp_QuestionGroupDS", con);
com.CommandType = CommandType.StoredProcedure;
SqlDataAdapter ada = new SqlDataAdapter(com);
DataSet ds = new DataSet();
ada.Fill(ds);
for (int i = 0; i < ds.Tables.Count; i++)
{
if (ds.Tables[i].Rows.Count > 0)
{
GridView gvDynamicQuestion = new GridView();
gvDynamicQuestion.Width = Unit.Pixel(700);
gvDynamicQuestion.BorderWidth = Unit.Pixel(0);
gvDynamicQuestion.Caption = "<div id="nifty" class="QuestionGroup"> <b class="rtop"><b class="r1"></b><b class="r2"></b><b class="r3"></b><b class="r4"></b></b>" + ds.Tables[i].Rows[0]["Category"].ToString() + " Questions<b class="rbottom"><b
class="r4"></b><b class="r3"></b><b class="r2"></b><b class="r1"></b></b></div>";
gvDynamicQuestion.AutoGenerateColumns = false;
gvDynamicQuestion.ShowFooter = true;
TemplateField tf = null;
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("QuestionId", DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("QuestionId", DataControlRowType.DataRow);
tf.FooterTemplate = new DynamicGridViewTextTemplate(DataControlRowType.Footer, ds.Tables[i].Rows.Count);
gvDynamicQuestion.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("Question", DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("Question", DataControlRowType.DataRow);
gvDynamicQuestion.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderText = "Criteria";
tf.HeaderTemplate = new DynamicGridViewTextTemplate("Criteria", DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewDDLTemplate();
gvDynamicQuestion.Columns.Add(tf);
////tf = new TemplateField();
////tf.HeaderText = "Criteria";
////tf.ItemTemplate = new DynamicGridViewDDLTemplate();
////gvDynamicQuestion.Columns.Add(tf);
gvDynamicQuestion.DataSource = ds.Tables[i];
gvDynamicQuestion.DataBind();
phDynamicGridHolder.Controls.Add(gvDynamicQuestion);
}
}
}
protected void DynamicGrid_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Footer)
{
//
}
}
}
public class DynamicGridViewTextTemplate : ITemplate
{
string _ColName;
DataControlRowType _rowType;
int _Count;
public DynamicGridViewTextTemplate(string ColName, DataControlRowType RowType)
{
_ColName = ColName;
_rowType = RowType;
}
public DynamicGridViewTextTemplate(DataControlRowType RowType, int QuestionCount)
{
_rowType = RowType;
_Count = QuestionCount;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (_rowType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = "<b>" + _ColName + "</b>";
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
Label lbl = new Label();
lbl.DataBinding += new EventHandler(this.lbl_DataBind);
container.Controls.Add(lbl);
break;
case DataControlRowType.Footer:
Literal flc = new Literal();
flc.Text = "<b>Total No of Questions:" + _Count + "</b>";
container.Controls.Add(flc);
break;
default:
break;
}
}
private void lbl_DataBind(Object sender, EventArgs e)
{
Label lbl = (Label)sender;
GridViewRow row = (GridViewRow)lbl.NamingContainer;
lbl.Text =DataBinder.Eval(row.DataItem, _ColName).ToString();
}
}
public class DynamicGridViewDDLTemplate : ITemplate
{
// Implementation of ITemplate
public void InstantiateIn(System.Web.UI.Control container)
{
// Create a DDL
DropDownList ddl = new DropDownList();
//Attach method to delegate
ddl.DataBinding += new System.EventHandler(this.ddl_DataBind);
container.Controls.Add(ddl);
}
//Method that responds to the DataBinding event
private void ddl_DataBind(object sender, System.EventArgs e)
{
//DropDownList ddl = (DropDownList)sender;
//DataGridItem container = (DataGridItem)ddl.NamingContainer;
//ddl.Data.Checked = [Data binding expression];
}
}
[/CODE]
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Jun 8, 2010
I am using Stored Procedure as my Insert/Update command in a FormView. The sp returns a value which I will need to use. How do I retrieve the value after doing an insert / update?
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Jun 14, 2010
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Mar 28, 2010
I have a grid view and I added edit and Save buttons to it. When I click on edit I am able to edit the data but when I click on save I amgetting the data before edit.
Please see my code below.
Eg: I have start date as 2005-10-10 12:00 AM so After I click On edit it is letting me to edit, So If I edit the start date to 2010-10-10 12:00 PM and click on the save button I am stil getting the old start date. which is 2005-10-10 12:00 AM instead of 2010-10-10 12:00 PM
<asp:GridView ID="gvPosHistory" runat="server" AutoGenerateColumns="False" AllowPaging="True"
AllowSorting="true" Width="650px" PageSize="20" CssClass="Gridview" Visible="false"
OnRowCommand="gvPosHistory_RowCommand"
OnRowDataBound="gvPosHistory_RowDataBound"
OnRowEditing="gvPosHistory_RowEditing"
OnRowUpdating="gvPosHistory_RowUpdating"
onrowcancelingedit="gvPosHistory_RowCancelingEdit" >
<Columns>
<asp:TemplateField HeaderText="Start Date" SortExpression="startDate">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center"
VerticalAlign="Top" />
<ItemStyle Wrap="False" HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblstartdate" runat="server" text='<%# Eval("StartDate")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate >
<asp:TextBox ID="txtStartDate" runat="server" Text='<%# Bind("StartDate")%>' ></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="End Date" SortExpression="endDate">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center"
VerticalAlign="Top" />
<ItemStyle Wrap="False" HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblenddate" runat="server" text='<%# Eval("EndDate")%>' ></asp:Label>
</ItemTemplate>
<EditItemTemplate >
<asp:TextBox ID="txtEndDate" runat="server" Text='<%# Bind("EndDate")%>' ></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Functional Job Title" SortExpression="JobTitle">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center"
VerticalAlign="Top" />
<ItemStyle Wrap="False" HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblFunctjobTitle" runat="server" text='<%# Eval("FunctionalJobTitle")%>' ></asp:Label>
</ItemTemplate>
<EditItemTemplate >
<asp:TextBox ID="txtFuncJobTitle" runat="server" text='<%# Bind("FunctionalJobTitle")%>' ></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Department" SortExpression="Department">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center"
VerticalAlign="Top" />
<ItemStyle Wrap="False" HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblDepartment" runat="server" text='<%# Eval("DeptName")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate >
<asp:TextBox ID="txtDeptName" runat="server" Text='<%# Bind("DeptName")%>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Supervisor" SortExpression="Supervisor">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center"
VerticalAlign="Top" />
<ItemStyle Wrap="False" HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblSupervisor" runat="server" text='<%# Eval("Supervisor")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate >
<asp:TextBox ID="txtSupervisor" runat="server" Text='<%# Bind("Supervisor")%>' ></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Bargaining Unit" SortExpression="bargainingunit">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center"
VerticalAlign="Top" />
<ItemStyle Wrap="False" HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblbargainingunit" runat="server" text='<%# Eval("BargainingUnit")%>' ></asp:Label>
</ItemTemplate>
<EditItemTemplate >
<asp:TextBox ID="txtBargainingUnit" runat="server" text='<%# Bind("BargainingUnit")%>' ></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="UCP Level" SortExpression="UCPlevel">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center"
VerticalAlign="Top" />
<ItemStyle Wrap="False" HorizontalAlign="Left" />
<ItemTemplate>
<asp:Label ID="lblUCPlevel" runat="server" text='<%# Eval("UCPLevel")%>' ></asp:Label>
</ItemTemplate>
<EditItemTemplate >
<asp:TextBox ID="txtUcpLevel" runat="server" Text='<%#Bind("UCPLevel")%>' ></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit" SortExpression="Edit">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center" VerticalAlign="Top" />
<ItemStyle Wrap="True" HorizontalAlign="Left" />
<ItemTemplate>
<asp:LinkButton ID="LBPosHistoryEdit" Text="Edit" runat="server" CommandName="Edit" ></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Save" SortExpression="Save">
<HeaderStyle Wrap="False" Font-Bold="True" HorizontalAlign="Center" VerticalAlign="Top" />
<ItemStyle Wrap="True" HorizontalAlign="Left" />
<EditItemTemplate>
<asp:LinkButton ID="LBPosHistorySave" Text="Save" runat="server" CommandName="SavePosHistory" CommandArgument='<%# Eval("UCPLevel")%>' ></asp:LinkButton>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
.aspx.cs
protected void gvPosHistory_RowCommand(object source, GridViewCommandEventArgs e)
{
if (e.CommandName == "SavePosHistory")
{
string arg = Convert.ToString(e.CommandArgument);
System.Web.UI.WebControls.LinkButton btnPosHistory = e.CommandSource as System.Web.UI.WebControls.LinkButton;
GridViewRow row = btnPosHistory.NamingContainer as GridViewRow;
TextBox tSdate = row.FindControl("txtStartDate") as TextBox;
TextBox tEdate = row.FindControl("txtEndDate") as TextBox;
TextBox tFuncJobTitle = row.FindControl("txtFuncJobTitle") as TextBox;
TextBox tDeptName = row.FindControl("txtDeptName") as TextBox;
TextBox tSupervisor = row.FindControl("txtSupervisor") as TextBox;
TextBox tBargainingUnit = row.FindControl("txtBargainingUnit") as TextBox;
TextBox tUCPLevel = row.FindControl("txtUcpLevel") as TextBox;
}
}
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Apr 26, 2010
know in asp.net 1.0 the grid display controls would pull all the data in, and then provide paging but the paging was done in memory.Are there any smarter controls that provide paging where they only pull the data relevent to current page being displayed?ie. select 10 rows for the current page, instead of doing a select of ALL the rows in the table.
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Feb 24, 2010
Like this: select * from foo where @nameofdbcolumnprovidedbyparam = 1? Whenever I attempt this with sqldatasource or in ado I get errors such as: Syntax error converting the nvarchar value 'foo' to a column of data type int.
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Oct 31, 2010
I need good css for Gridview just like the mac css
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Aug 4, 2010
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Aug 13, 2010
I try to pass two parameters to code behind
Into gridview
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{
if(value == LbluserInvisible.Text)
{
return true;
}
else
{
return false;
}
}
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Aug 6, 2010
profile provider stores profile datas in aspnet_profiles table fields format something like :
propertynames:ActiveRole:S:0:5:MobilePhone:S:5:6:JobAddress:S:11:3:HomeAddress:S:14:48:HomePhone:S:62:6:LastName:S:68:6:FirstName:S:74:9:
propertyvaluesString:Roles546456xcvxvxcvxcvxcvxvxc vxcvxcvxv xvxcvxcv xcvxcvxc546456546456546546456
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May 14, 2010
I have a gridview where I already have a select link which takes me to different page. I want one more link which will take me to a separate page.
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Mar 27, 2011
I have gridview which takes data from storedprocedure with some in parameters.
How to change storedprocedure in parameter values for sqldata source and update gridview on button click?
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Dec 5, 2010
I am trying to return a dataset. I must be doing something wrong. The returned dataset in this sample code indicates there is a datatable, Users, but there are no datarows. What am I doing wrong? This example is only using the rows.count, but of course I really need to use the whole datatable as the datasource for a gridview.
[Code]....
Public Function getmyds() As DataSet
Dim dsUser1 As DataSet = New DataSet()
Dim tbUser1 As DataTable = dsUser1.Tables.Add("Users")
tbUser1.Columns.Add("UserName")
tbUser1.Columns.Add("Days Remaining")
tbUser1.Columns.Add("UserAccountControl")
Dim rwDefaultUser1 As DataRow = tbUser1.NewRow()
rwDefaultUser1("UserName") = "John Smith"
rwDefaultUser1("Days remaining") = 100
rwDefaultUser1("userAccountControl") = "Enabled"
Return dsUser1
End Function
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Aug 31, 2010
I have a GridView in my page :
[Code]....
But always temp string is empty!
What's wrong with it?
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Feb 13, 2011
I have a gridview and I have an edit template for one control. I have a drop down box in this edit template so that you can select a value from it and then when you hit 'Update' the value from the drop down box is committed to the updated record. Unfortunately when I do hit the update button I get a fault that the "Status" field cannot be null.
Here is the code that picks the value from the drop down value and assigns it to the new values list:
[Code]....
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Dec 26, 2010
I have added a gridview in my aspx web page. I have added a hyperlink field, to navigate to another page from the gridview. I am getting the error as:
"There was an error rendering the control.
Index(zero based) must be greater than or equal to zero and less than the size of the argument list. "
This is the code i have used:
[Code]....
[Code]....
When i remove the hyperlink, the grid is getting displayed. I know, there is something wrong i have coded in the DataNavigateURLformatstring, but not sure what is wrong.
I want to pass the StudentID,CourseID,ChildImageID with the link as the querystring.
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Mar 22, 2011
I have a asp.net gridview control on my page with several fields and a couple of command fields. However, the update command is giving me problems.
Here is what works. The update command works provided I put straight text into the textboxes that appear. I even have one field that contains a dropdown list which works fine.
Here's the problem. I have two fields that need to access their value programmatically. These fields will reflect the current datetime and the current loggedin user from active directory. I have already created public strings in the C# code.
When I run the edit command on the asp form the grid uses one "DataKeyNames" element. With this the grid can update the selectedrow. However, I haven't been able to access it programmatically in the C# code. I can access the selectedrow in the "selectedindexchanged" event but then I am not able to update my fields in the gridview itself. So, part one of my question is how to I access the "DataKeyNames" properties of a gridview control.
if I can't access the "DataKeyName" property perhaps I could set the label nested within the gridview to the "myCurrentUser()" public string. I am inserting my code to hopefully make this clearer.
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Apr 29, 2010
I Have a gridview where I have a link to a details page and I need to pass multiple parameters. I currently have the following:
<Columns>
<asp:BoundField DataField="AssocID" HeaderText="AssocID" InsertVisible="False"
ReadOnly="True" SortExpression="AssocID" />
<asp:BoundField DataField="FirstName" HeaderText="First Name"
SortExpression="FirstName" />
<asp:BoundField DataField="MiddleInitial" HeaderText="M. I."
SortExpression="MiddleInitial" />
<asp:BoundField DataField="LastName" HeaderText="Last Name"
SortExpression="LastName" />
<asp:BoundField DataField="State" HeaderText="State" SortExpression="State" />
<asp:BoundField DataField="EMail1" HeaderText="EMail 1"
SortExpression="EMail1" />
<asp:BoundField DataField="AddrType" HeaderText="Addr Type"
SortExpression="AddrType" />
<asp:HyperLinkField DataNavigateUrlFields="AddrID,AssocID"
DataNavigateUrlFormatString="Details.aspx?AddrID={0}&AssocID={1}" HeaderText="Details"
Text="Details" />
<asp:BoundField DataField="AddrID" HeaderText="AddrID" InsertVisible="False"
ReadOnly="True" SortExpression="AddrID" Visible="False" />
</Columns>
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Jan 26, 2011
I'm trying to allow my users to select a record from their list of attendees and edit it using a details view positioned below the GridView. The issue I'm having is when I run the code I get my error message and no data is displayed in the DetailsView. Error Message is:
DataBinding: 'System.Data.Common.DataRecordInternal' does not contain a property with the name '10002'.
[Code]....
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Oct 6, 2010
I have done this with a DropDownList but not 2 text boxes that require date info.
With the DropDownList once a itme is selected from the list the GridView gathers the data in a SQL query and displays it in the same page
I want to have the same type of response when the user enters date data in two text boxes. It would be nice that when they exit the 2nd parameter box to show the grid.
Not sure how to do that in SelectParameters and convert the text data to a date.
I am going to use RequiredFieldValidtors but I am not sure what to do to make sure a valid date is entered.
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Mar 3, 2010
I have a grid view with a few columns, for example a column in the grid view contains description of a product. The description might be very long, so i want to display only first 100 characters of the description and then provide a . when we click on the. then the whole description should be displayed.
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Jan 8, 2011
i have a gridview and the delete option.
when i press delete button i want to run my stored procedure which requires an input variable. how can i do this?
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Mar 5, 2010
I am trying to show gridview as Stored procedure results sent.
[code]....
page is displaying with Edit and deleti buttons with no. of rows. But not result set (no data).
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