37 lines
1.3 KiB
C#
37 lines
1.3 KiB
C#
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//------------------------------------------------------------------------------
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/// <copyright from='1997' to='2002' company='Microsoft Corporation'>
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/// Copyright (c) Microsoft Corporation. All Rights Reserved.
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///
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/// This source code is intended only as a supplement to Microsoft
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/// Development Tools and/or on-line documentation. See these other
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/// materials for detailed information regarding Microsoft code samples.
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///
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/// </copyright>
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//------------------------------------------------------------------------------
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namespace SampleDesignerHost
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{
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using System;
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using System.Collections;
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/// This is just a special stack to handle the transaction descriptions.
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/// It functions like a normal stack, except it looks for the first
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/// non-null (and non "") string.
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internal class StringStack : Stack {
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internal StringStack() {
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}
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internal string GetNonNull() {
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int items = this.Count;
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object item;
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object[] itemArr = this.ToArray();
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for (int i = items - 1; i >=0; i--) {
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item = itemArr[i];
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if (item != null && item is string && ((string)item).Length > 0) {
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return (string)item;
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}
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}
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return "";
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}
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}
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}
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