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POError on GridView postback
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Id
17802027
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0
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1
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2013-07-23T05:22:19.997
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0
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2013-07-23T06:05:05.263
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2013-07-23T05:27:37.080
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1120393
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1120393
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1
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0
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239
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I have two sites in a web application. What I want to do is update the list from Site A from a web part in Site B using a button. The problem is that if I don't use <code>Page.IsPostBack</code>, the page throws an unhandled exception when the button is clicked, BUT, the list in Site A is updated. But if I use <code>Page.IsPostBack</code>, I don't get the exception but the process doesn't push through; as a matter of fact, it doesn't even proceed to the eventhandler when the button is clicked. <pre><code>if (!Page.IsPostBack) { using (SPSite site = new SPSite(SPContext.Current.Web.Url)) { SPQuery query = new SPQuery(); query.Query = @"Query><OrderBy><FieldRef Name='Title' /></OrderBy><Query>"; query.ViewAttributes = "<FieldRef Name='Title' />"; query.ViewFields = string.Concat( "<FieldRef Name='Title' />", "<FieldRef Name='Status' />", "<FieldRef Name='Severity' />", "<FieldRef Name='Comment' />"); query.ViewFieldsOnly = true; showGrid = new GridView(); this.Controls.Add(showGrid); SPList list = SPContext.Current.Site.RootWeb.Lists["Ticket List"]; DataTable dt = new DataTable(); ButtonField approveBtn = new ButtonField(); approveBtn.ButtonType = ButtonType.Button; approveBtn.CommandName = "Update"; approveBtn.Text = "Approve"; showGrid.Columns.Add(approveBtn); dt = list.Items.GetDataTable().Copy(); dt = list.GetItems(query).GetDataTable(); showGrid.DataSource = dt; showGrid.DataBind(); showGrid.RowCommand += new GridViewCommandEventHandler(inventoryGridView_RowCommand); } } </code></pre> Eventhandler <pre><code>if (e.CommandName == "Update") { int index = Convert.ToInt32(e.CommandArgument); GridViewRow row = showGrid.Rows[index]; using (SPSite site = new SPSite(SPContext.Current.Web.Url)) { using (SPWeb Web = site.OpenWeb()) { Web.AllowUnsafeUpdates = true; // Open List SPList list = SPContext.Current.Site.RootWeb.Lists["Ticket List"]; SPListItem _listItem = list.Items[row.RowIndex]; _listItem["Status"] = "Approved"; _listItem.Update(); Web.AllowUnsafeUpdates = false; } } } </code></pre>
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<c#><sharepoint-2010>
Title
Error on GridView postback
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
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1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USNath
UserOwnerUserId
1. USNath
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PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
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1. This table or related slice is empty.
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1. This table or related slice is empty.

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.