Forms Data Controls :: Custom Binding An Item Template Error - (string)' Has Some Invalid Arguments?
Mar 12, 2011
I have a gridview with item template and I want the text in that item template label to come from a method in a code behind.
Here is my gridview:
[Code]....
[Code]....
[Code]....
I want to call this method but I'm getting the errors: "
"The best overloaded method match for 'employeepayment.RegTime(string)' has some invalid arguments"
"Argument '1': cannot convert from 'object' to 'string'"
Someone know the answer?. I thought I was right to use Eval.
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Mar 26, 2011
not quit sure where I've go wrong with this but hopefully someone might have an idea why this isn't working:
This what I thought would work:
[code]....
But it's not! what I get for the OnClientClick attribute is: "DeleteRowKey=<%# dataBinder.Eval(Container.dataItem, "idx_mstrWord") %> "
I've tried several variations (EVAL, BIND, specifying the container and not specifying the container),
none of which gives the expected results; OnClientClick="DeleteKeyRow=12345"
If I add a label and set the text to: <%# dataBinder.Eval(Container.dataItem, "idx_mstrWord") %> I get a number which is what I should but if I try to get it to embed it so my cleint script can work with the data all I get is binding command.
What am I doing wrong? I really don't want to have to kludge around with some hidden field and then have to search through the grid to get at this data key. I need this key on the client side in order to provide additional details in my confirmation popup modal.
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Jun 16, 2010
I am using one dropdown list using following tag
[Code]....
FYI, In databse I have stored dropdown item text, not value.
Now whenever I try to set the selected item using following code, I am getting error System.Web.UI.WebControls.ListItemCollection.FindByText(string)' has some invalid arguments.
[Code]....
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Jun 25, 2010
I have an item template field retrieving a date field from an Oracle 11g database that can be null. The date is converted to a string before binding to the gridview. When the column is sorted is is being sorted as a string. I have read in several places if you add a formatting string to the eval statement in the item template that the sort operation will then sort the string as a date. However, I cannot get it to work. I also tried a bound column, but the column is still being sorted as a string.Code from the aspx page:
<asp:TemplateField HeaderText="Comp Date">
<HeaderTemplate>
<asp:LinkButton ID="sortDatea" runat="server" CommandName="Sort"
[code]...
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May 27, 2010
[Code]....
[Code]....
Get Gridview item template textbox value to string variable?
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Feb 1, 2010
I have a asp:button in template field of gridview, I set command name for this and in grid I mention on command event. On clicking the page it shows error message is :Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/>
[code]...
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Jan 6, 2010
I am trying to add 2 binds to a CommandArgument so both are passed.
[Code]....
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Mar 3, 2010
I have a formview with various templates set up for a database that has 255 columns. I need the insertitemtemplate to pre-fill values based upon a specific selection by the user (just like the edit item template) but when the template is switched to insertitemtemplate every text box is cleared. The idea is that a new entry is usually made by making minor changes to an existing entry. With 255 fields I don't want to require the user to enter every field when only three or four need to change.
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Sep 9, 2010
I have a gridview which the columns are created programmatically.
When a button is click i will clear all columns and add the columns that I want. Im adding a boundfield which is not a problem. When I add a template field, I must add also the item template which is my problem.
How can I add a item template in the template field I created which is binded in my datasource. Also what event handler should I use to do this.
Here's the part of my code:
[Code]....
Someone know how can I bind a label item template from the datasource. The label item template should be firstname + middlename + lastname.
If im not doing it programatically, it will be just concatenating eval(). But how can create item template and bind it programmatically?
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Mar 2, 2011
I'm trying to have an asp.net custom control with a field like:
<ErrorTemplate>
<h1>Error</h1>
<p>Blue wizard shot the food</p>
</ErrorTemplate>
What I want to end up with is:
<h1>Error</h1><p>Blue wizard shot the food</p> in a string in my codebehind.
At the moment, the process I use to get this data out of the template is:
First this gets instantiated into a placeholder by my code:
ErrorTemplate.InstantiateIn(errorPHolder);
which is an asp.net placeholder control - it has to be instantiated into something which can support controls.
What I then want to do is add this to my page using JQuery and a variable, like this:
string script = "var Errortemplate = " + errorPHolder.ToString() + ";";
scriptmanager.register(script); // pseudocode
so the result would be, on my page:
var Errortemplate = '<h1>Error</h1><p>Blue wizard shot the food</p>';
Then I can use JQuery to do someDiv.html(Errortemplate);
Finally resulting in whatever they put in <ErrorTemplate> appearing on the page
Because I'm using JQuery it might be possible to do this a different way, such as adding the placeholder to the page into a hidden div and using JQuery to copy the values out.
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Apr 15, 2010
I having problem binding web service result into a gridview. I using Word Dictionary Web Service for my project. Below is part of my code.
Web References I using is :
[URL]
Protected void Button1_Click(object sender,
EventArgs e) {
DictService ds = new DictService();
ds.DefineAsync(TextBox1.Text);
ds.DefineCompleted += new DefineCompletedEventHandler(ds_DefineCompleted); }
void ds_DefineCompleted(object sender, DefineCompletedEventArgs e){
GridView1.DataSource = e.Result;
GridView1.DataBind();}
The Error i get is : Data source is an invalid type. It must be either an IListSource, IEnumerable, or IDataSource.
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Feb 13, 2010
I came up with the following error when i tried to run my asp.net application.
The error is : Unable to Attach.The Binding Handle is invalid.Do you wish to continue?
If i click Yes, application is running but could not able to debug.
Then I referred to microsoft blogs and tried the following solution control Panel-->Administrative tools-->Services-->Terminal ServicesI changed startup type to "Manual" ,restarted my machine.But it's not working for me.
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Jul 31, 2013
i am implementing a update query module.i am displaying all fields from a table for a term searched. well now i am implementing update option for the record which are displayed, i have like 70 columns in my table, and i want to know how to restrict some selected fields to be only read only while the form can be updated ?Like if user select to update a record then some selected field such as "Timestamp, UID etc some selected fields" remains READ ONLY !
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Feb 15, 2011
I have the following line to display a piece of data and I want to know how I can format the output.
Text='<%# Eval("DOH") %>'
The data list displays the correct data, but I want to format it. The output I want is just a small date format instead of date and time. I have tried every combination of a format function I can think of, but can't seem to make it work. Am I stuck with the raw format provided by the database? I wouldn't think so, but maybe that is the case.
expected output should be 02/15/2011 instead of 02/15/2011 09:45:
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May 23, 2010
i am working on grid view that have an item template contain a linkbutton that should delete its row so my broblem is how to get the index of the row which i have clicked its linkbutton i tried to search online msdn and asp but no answer helped me or may be its just me i was able to delete row by using enable deleting from the smart tag of the grid view but i was using sql data source which brings data from sql table but later i had to replace the sql table with sql view after i did that i couldn't enable the checkbox of enable insert,update and delete statment in advanced sql generatiom options in configure sql data source wizard and this is the other proplem and i not asking this for delete the record only ,it could help in send emial button which is placed the in item tamplate too and i am using C# by the way.
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Jun 26, 2010
I have a dropdownlist as a template item in a gridview - it populates fine and with the right values. I have an SelectedIndexChanged on the dropdownlist, and has set it for postback. In the SelectedIndexChanged event, I would like to know where the control that fired this event is, - which row in the gridview is it in? How do I get this info? If the row was selected it would be easy, but the only thing that has happened in that row is that the dropdown has changed value and consequently the SelectedIndexChanged event has been fired - is that enough to know which row the event has been fired from?
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Mar 14, 2010
I am using Asp.net with C#.
I have one gridivew, which is showing 20 records. And also, in item template of Gridview, I used one dropdownlist. It means there are 20 dropdownlist with all the 20 rows. That dropdownlist is already binded, means showing the records/items - 8 items. No issue with this.
Now, what I want is, when ever, I select any item from the drodownlist against each row in that gridview and click on the button "Save", it will save the id of all row with all the values of dropdownlist.
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May 24, 2010
The Detailsview has a template containing a textbox for one of it's fields.When an item is selected in the Gridview, I want to set a property of the textbox. How do I do that? I've tried Findcontrol for the item during Prerender of the detailsview. I've also tried many other things. Below is a portion of my aspx code followed by my VB code.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="LU_DutyStations_ID" DataSourceID="SqlDataSource1">
<Columns>
asp:CommandField ShowSelectButton="True" />
<asp:BoundField DataField="Duty Station Code" HeaderText="Duty Station Code"
[code]...
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Jul 1, 2010
I have this code:
[Code]....
And for the life of me I dont recall how to do an inline if when inside this repeater.
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Oct 18, 2010
i have a gridview and i need to export each row to excel I added to the grid item template and a button export
<asp:TemplateField HeaderImageUrl="~/images/Excel2003.png" ShowHeader="False">
<ItemTemplate>
<asp:Button ID="BtnExport1" runat="server" BackColor="White" Font-Bold="True"
[code]...
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May 15, 2010
I have a grid view with item template ....In the footer template of the gridview i have a button ... On clicking the button a new item template row is created .Wat i need is , by pressing the enter key i need to add new row .... It is already adding new row on button click .... The same should be done on pressing the enter key on the last row of the gridview item template .....
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Oct 6, 2010
I created a dbml fiile and tried it if it works or not. but the sp function is crashing. here is the error;
Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following
specific error details and modify your source code appropriately.
Compiler Error Message: CS1502: The best overloaded method match for ',MyDataContext.CustomerDetails_InsertWhilePurchase(ref int?, string, string, string, string, System.DateTime?, string, string,
string, string, string, string)' has some invalid arguments
Source Error:
[Code]....
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Feb 13, 2010
came up with the following error when i tried to run my asp.net application.The error is : Unable to Attach.The Binding Handle is invalid.Do you wish to continue?If i click Yes, application is running but could not able to debug.Then I referred to microsoft blogs and tried the following solution control Panel-->Administrative tools-->Services-->Terminal ServicesI changed startup type to "Manual" ,restarted my machine.But it's not working for me.Even i tried by also reinstalling .net2.0, then also it's not working..It will be difficult to go thro' the code if debug fails..
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Jan 6, 2010
I want to show a message when there's no data in my datalist. I found the following, but, I get an error on the bool. If you have another way to do this, great, but, I'd also like to try to do it this way as a learning experience.
<asp:DataList id="DataList3" runat="server" DataSourceID="SqlDataSource1">
<ItemTemplate>
<asp:HyperLink ID="ID" runat="server" target="_parent" NavigateUrl='<%# "Employment_detail.aspx?"%>'
Text='<%# Bind("WJTTL") %>'/>
</ItemTemplate>
<FooterTemplate>
<asp:Label ID="lblEmpty"
Text="Nothing here." runat="server" Visible="true">
%>Visible='<%#bool.Parse((SqlDataSource1.Items.Count==0).ToString())%>'> </asp:Label>
</FooterTemplate>
</asp:DataList>
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Oct 11, 2010
i have a dropdown list in edit mode and read only mode. If users upload pictures, i want them to chose a category for the uploaded pics and display it in a gridview as below.(See Picture below). When i include "SelectedValue='<%# Bind("CategoryID")" in edit and item template mode, i get this error "'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value "
When i removed the "SelectedValue='<%# Bind("CategoryID")" from edit and item template, i get the result on the pic below(screenshot). If u can see the pic below the category is not selected, it just display the -- No Category -- even when i chose a category for the pic. I want when a pic is uploaded and i category chosen, to display on the gridview. The code for the error message is below:
<EditItemTemplate>
<asp:DropDownList ID="pictureEditCategories" runat="server"
AppendDataBoundItems="True"
DataSourceID="categoriesDataSource"
DataTextField="Name" DataValueField="CategoryID"
SelectedValue='<%# Bind("CategoryID")
%>' ValidationGroup="PictureEdit" >
<asp:ListItem Value=""
Text="--No Category -- "/>
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:DropDownList ID="PictureReadOnlyCategories" runat="server"
AppendDataBoundItems="True" DataSourceID="categoriesDataSource"
DataTextField="Name" DataValueField="CategoryID" Enabled="False"
SelectedValue='<%# Bind("CategoryID")
%>' ValidationGroup="PictureEdit"
>
<asp:ListItem Value="">-- No Category --</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Title"
SortExpression="Title">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" EnableViewState="False"
Text='<%# Bind("Title") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4"
runat="server"
ControlToValidate="TextBox1"
Display="Dynamic"
ErrorMessage="must enter a title"
ValidationGroup="PictureEdit"></asp:RequiredFieldValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("Title")
%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description"
SortExpression="Description">
<EditItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Columns="25" Rows="4"
Text='<%# Bind("Description")
%>' TextMode="MultiLine"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator5"
runat="server"
ControlToValidate="TextBox2"
Display="Dynamic"
ErrorMessage="you must enter a description"
ValidationGroup="PictureEdit"></asp:RequiredFieldValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("Description")
%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date Added"
SortExpression="UploadedOn">
<EditItemTemplate>
<asp:Label ID="Label4" runat="server" Text='<%# Bind("UploadedOn")
%>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Bind("UploadedOn")
%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:ImageField DataImageUrlField="PictureID"
DataImageUrlFormatString="~/UploadedImages/{0}.jpg"
HeaderText="Image"
ReadOnly="True">
<ControlStyle Width="100px"
/>
</asp:ImageField>
</Columns>
<EditRowStyle BackColor="#2461BF"
/>
<FooterStyle BackColor="#507CD1"
Font-Bold="True" ForeColor="White"
/>
<HeaderStyle BackColor="#507CD1"
Font-Bold="True" ForeColor="White"
/>
<PagerStyle BackColor="#2461BF"
ForeColor="White" HorizontalAlign="Center"
/>
<RowStyle BackColor="#EFF3FB"
/>
<SelectedRowStyle BackColor="#D1DDF1"
Font-Bold="True" ForeColor="#333333"
/>
<SortedAscendingCellStyle BackColor="#F5F7FB"
/>
<SortedAscendingHeaderStyle BackColor="#6D95E1"
/>
<SortedDescendingCellStyle BackColor="#E9EBEF"
/>
<SortedDescendingHeaderStyle BackColor="#4870BE"
/>
</asp:GridView>
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